FOUS56 KMTR 181300 PFMMTR Point Forecast Matrices National Weather Service San Francisco Bay Area 600 AM PDT Mon May 18 2026 CAZ510-182300- Concord Airport-Contra Costa CA 37.99N 122.05W Elev. 23 ft 600 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 87 57 92 57 92 Temp 65 75 84 87 80 67 60 57 63 79 90 91 80 68 60 57 62 80 91 90 Dewpt 31 26 24 22 30 35 37 38 34 31 26 31 33 34 40 42 42 41 36 36 RH 28 16 11 9 16 30 42 49 34 17 10 12 18 28 47 57 48 25 14 15 Wind dir N N N N NW SW W N N N N NW W SW SW SW N N W W Wind spd 18 17 11 9 6 5 3 0 1 6 8 11 10 6 4 2 0 0 9 11 Wind gust 29 Clouds CL CL CL CL CL CL CL CL CL CL CL CL CL CL CL FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 55 90 53 83 52 77 51 77 Temp 65 55 81 87 62 54 73 79 59 54 70 74 57 53 70 74 Dewpt 43 46 46 40 46 49 47 47 51 51 50 50 51 51 50 49 PWind dir SW W SW SW SW SW SW SW Wind char GN LT LT LT GN GN GN GN Avg clouds CL CL FW CL CL FW FW CL CL FW SC FW CL FW SC FW PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ508-182300- Hayward Airport-Alameda CA 37.66N 122.12W Elev. 46 ft 600 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 80 54 84 56 82 Temp 63 72 78 79 70 61 57 55 59 74 81 81 71 62 58 56 59 73 80 78 Dewpt 31 30 30 36 36 40 40 39 38 36 35 41 38 40 39 41 42 44 44 46 RH 30 21 17 21 29 46 53 55 45 25 19 24 30 44 49 57 53 35 28 32 Wind dir N N NW W W SW SE E N NW NW W W SW SW N N W W W Wind spd 14 14 13 14 10 5 3 1 1 8 13 13 8 3 3 0 0 4 11 12 Wind gust 26 Clouds CL CL CL CL CL CL CL FW CL CL CL CL CL FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 55 80 54 76 54 72 53 71 Temp 61 55 72 76 59 55 68 72 58 55 66 68 57 54 65 68 Dewpt 46 46 48 48 48 48 49 50 52 51 52 52 52 51 51 51 PWind dir W W W W W W W W Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC CL CL FW SC FW CL SC B1 FW CL SC B1 FW PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ510-182300-Livermore Airport-Contra Costa CA 37.70N 121.84W Elev. 397 ft 600 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 52 90 55 92 Temp 59 72 82 84 77 63 56 53 58 76 88 89 79 65 58 55 61 80 91 90 Dewpt 26 25 23 22 29 34 34 32 27 25 22 25 32 33 31 32 31 33 31 33 RH 28 17 11 10 17 34 43 44 30 15 9 10 18 30 36 41 32 18 12 13 Wind dir N N N N W SW N N N N N NW W SW N N N N W W Wind spd 14 14 13 13 8 4 0 0 2 8 10 12 10 5 0 0 0 0 9 13 Wind gust 34 26 Clouds CL CL CL CL CL CL CL CL FW CL CL CL CL CL CL FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 55 92 54 88 52 83 51 80 Temp 65 55 82 90 64 54 77 86 61 52 73 81 58 52 71 79 Dewpt 39 39 40 37 43 42 41 42 49 48 47 48 50 49 48 48 PWind dir W W SW W W W W W Wind char LT LT LT LT LT LT LT LT Avg clouds CL CL FW CL CL CL FW CL CL FW SC CL CL FW SC CL PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ513-182300- Moffett Field-Santa Clara CA 37.42N 122.05W Elev. 33 ft 600 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 54 82 56 82 Temp 61 70 77 78 69 61 57 55 58 73 80 81 70 63 59 57 59 74 81 81 Dewpt 34 30 30 36 37 35 40 40 41 35 35 41 40 34 38 38 42 45 45 46 RH 36 22 18 22 31 38 53 57 53 25 20 24 33 34 45 49 53 35 28 29 Wind dir NW N NW NW NW S N N NW NW NW NW NW N N N N NW NW W Wind spd 11 12 12 14 9 2 0 0 1 6 11 12 8 0 0 0 0 4 10 11 Clouds CL CL CL CL CL CL CL FW FW FW CL FW CL CL CL FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 55 81 54 77 53 74 53 73 Temp 62 56 72 77 61 54 69 74 59 53 67 71 58 53 66 71 Dewpt 46 46 48 49 49 48 50 51 53 51 52 53 52 51 52 53 PWind dir NW NW NW W W W W NW Wind char LT LT LT LT GN LT LT LT Avg clouds FW FW FW CL CL CL FW CL CL FW SC FW CL FW SC FW PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ530-182300- Monterey Airport-Monterey CA 36.59N 121.85W Elev. 253 ft 600 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 72 50 76 53 74 Temp 57 69 70 68 60 56 53 51 56 73 73 71 62 58 55 53 57 71 72 70 Dewpt 34 35 41 40 41 39 39 38 40 43 45 44 43 40 38 39 43 47 49 49 RH 42 28 35 36 49 53 59 61 55 34 37 38 50 51 53 59 59 42 44 47 Wind dir SE NW W W SW SW S N N NW W W SW SW N N N W W W Wind spd 4 4 11 10 8 5 1 0 0 5 8 6 5 1 0 0 0 5 8 6 Clouds CL CL CL CL CL FW FW SC FW FW FW FW FW FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 51 71 50 66 50 65 51 65 Temp 56 52 68 66 55 52 63 64 55 52 62 63 54 52 61 63 Dewpt 46 44 50 49 49 47 50 50 51 50 52 51 51 50 51 50 PWind dir W W W W W W SW W Wind char LT LT LT LT LT LT LT LT Avg clouds SC SC SC FW FW SC B1 FW FW B1 B1 SC FW B1 B1 SC PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ506-182300- Napa Airport-Napa CA 38.21N 122.28W Elev. 33 ft 600 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 85 54 87 54 86 Temp 64 72 81 84 77 64 57 54 60 76 86 86 77 64 57 54 58 72 84 85 Dewpt 34 28 30 26 36 37 37 37 41 39 37 37 39 42 44 44 47 47 46 46 RH 32 19 16 12 23 37 47 52 49 26 18 18 25 45 62 69 67 41 27 26 Wind dir N N N N NW W NE N N N NW W W W W N N SW SW SW Wind spd 19 18 11 11 9 8 4 0 1 6 9 13 9 4 1 0 0 4 9 13 Wind gust 31 28 Clouds CL CL CL CL CL CL CL FW CL CL CL CL CL CL FW FW FW FW FW CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Coast Flood Y Y Y Y Y Y Y Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 52 84 52 77 51 73 50 74 Temp 61 52 71 84 59 53 66 76 57 52 66 71 56 52 66 72 Dewpt 48 47 50 49 49 49 51 51 51 51 51 51 51 50 51 51 PWind dir SW SW SW SW SW SW SW SW Wind char GN LT LT LT GN GN GN LT Avg clouds CL FW SC CL CL FW SC FW CL SC B1 FW CL SC B1 FW PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ508-182300- Oakland Airport-Alameda CA 37.74N 122.20W Elev. 3 ft 600 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 54 8154 79 Temp 63 67 73 75 69 61 57 55 58 67 74 75 69 61 57 55 58 66 72 72 Dewpt 35 35 35 40 40 42 43 42 42 41 42 45 41 44 44 44 46 48 49 50 RH 35 30 25 28 35 49 59 61 55 39 32 34 36 53 62 66 64 52 44 46 Wind dir N N NW W W W SW N NW NW W W W SW SW N N W W W Wind spd 17 13 13 16 11 6 3 0 1 6 13 13 9 5 3 0 0 4 11 12 Clouds CL CL CL CL CL CL CL FW CL CL CL CL CL FW FW FW SC FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 53 77 55 69 54 66 54 66 Temp 60 54 67 70 58 55 63 67 58 55 62 64 57 55 62 64 Dewpt 48 47 51 50 50 50 51 52 53 52 53 52 52 51 52 52 PWind dir W W W W W SW W W Wind char LT LT LT LT GN LT GN LT Avg clouds FW FW SC CL CL FW SC FW FW SC B1 FW FW SC B1 SC PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ528-182300- Salinas Airport-Monterey CA 36.67N 121.60W Elev. 82 ft 600 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 78 51 84 54 83 Temp 57 69 76 73 63 56 53 51 57 74 82 77 66 58 56 55 60 75 81 75 Dewpt 36 35 37 44 43 43 40 39 41 42 43 47 46 45 41 39 42 47 47 50 RH 45 28 24 35 48 62 61 63 55 32 25 35 48 62 57 55 51 37 30 41 Wind dir NE N W W W N NW E NE NW W W W S SE SE SE NW W W Wind spd 3 3 13 12 9 4 2 2 2 5 11 10 6 3 2 3 2 5 12 12 Clouds CL CL CL CL CL FW CL FW FW FW CL CL CL FW CL FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 53 80 52 73 51 70 51 70 Temp 58 54 73 72 57 54 68 69 56 52 65 66 55 52 64 66 Dewpt 48 43 51 49 49 47 51 51 51 51 53 52 52 51 52 51 PWind dir SW W W W W W W W Wind char LT LT LT LT LT GN GN GN Avg clouds FW FW SC CL CL FW SC FW CL SC B1 FW FW B1 B2 FW PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ508-182300- San Francisco Airport-San Mateo CA 37.62N 122.38W Elev. 10 ft 600 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 53 81 53 78 Temp 63 73 77 76 68 61 55 53 58 74 79 78 68 61 55 54 57 71 76 74 Dewpt 36 38 39 37 37 43 45 45 44 43 44 42 40 44 46 47 48 52 50 48 RH 36 28 25 24 32 51 69 74 59 33 29 28 36 53 72 77 72 51 40 40 Wind dir N N NW W W W W N N NW W WW W SW SW N W W W Wind spd 14 13 14 21 17 10 5 0 1 5 14 17 12 6 4 2 0 1 11 13 Clouds CL CL CL CL CL CL FW FW FW CL CL CL CL CL FW FW SC FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 52 75 53 70 54 67 54 67 Temp 57 53 69 71 56 53 65 67 56 54 63 64 56 54 62 64 Dewpt 49 48 53 49 49 49 53 51 52 51 53 51 51 50 53 50 PWind dir W W W SW SW SW SW SW Wind char GN LT LT LT GN LT GN LT Avg clouds FW FW SC FW FW SC SC FW FW SC B1 SC FW SC B1 SC PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ513-182300- San Jose Airport-Santa Clara CA 37.36N 121.92W Elev. 59 ft 600 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 82 54 86 57 87 Temp 61 72 80 81 72 62 57 54 59 75 85 85 75 64 59 57 61 77 86 85 Dewpt 33 29 30 31 34 35 38 38 38 33 34 36 36 34 35 35 39 40 40 42 RH 35 20 16 16 25 36 49 54 45 21 16 17 24 32 40 43 44 26 20 22 Wind dir NW N NW NW N W N W NW NW NW NW NW N N N N NW NW NW Wind spd 13 13 13 18 11 4 0 2 3 8 12 16 11 0 0 0 0 1 10 13 Wind gust 24 Clouds CL CL CL CL CL CL CL FW FW FW CL CL CL CL CL FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 56 87 55 82 54 78 53 77 Temp 63 57 78 82 62 55 72 79 60 54 71 76 59 53 69 75 Dewpt 43 44 46 46 47 46 46 49 51 51 50 52 51 51 50 52 PWind dir NW NW W W SW SW W W Wind char LT LT GN LT GN LT GN LT Avg clouds FW FW FW CL CL CL FW CL CL FW SC FW CL FW SC FW PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ506-182300- Santa Rosa Airport-Sonoma CA 38.52N 122.82W Elev. 125 ft 600 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 89 52 93 54 91 Temp 60 73 85 88 74 59 54 53 59 78 90 90 76 60 55 54 59 76 88 89 Dewpt 38 33 27 26 39 43 41 37 42 40 38 36 43 44 43 43 46 49 46 43 RH 44 23 12 11 28 55 61 54 53 26 16 15 31 55 64 66 62 39 23 20 Wind dir N N N N NW N N N N N W W W NW N N N S SW SW Wind spd 5 8 5 5 8 4 2 2 1 2 5 6 3 2 0 0 0 3 5 5 Wind gust 17 18 Clouds CL CL CL CL CL CL FW FW FWCL CL CL CL FW FW FW SC FW CL CL PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Coast Flood Y Y Y Y Y Y Y Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 51 90 49 82 47 78 47 79 Temp 57 52 77 84 56 51 70 78 53 50 67 75 53 49 67 76 Dewpt 49 47 53 47 49 48 52 51 51 49 52 52 51 49 52 51 PWind dir SW S SW SW SW S SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds FW FW SC CL CL FW SC FW CL FW B2 FW FW SC B1 FW PoP 12hr 0 0 0 0 0 0 0 0 $$ CAZ529-182300- Watsonville Airport-Santa Cruz CA 36.94N 121.79W Elev. 161 ft 600 AM PDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 PDT 3hrly 02 05 08 11 14 17 20 23 02 05 08 11 14 17 20 23 02 05 08 11 14 17 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 79 49 82 53 81 Temp 59 70 76 78 65 56 52 50 56 74 79 78 65 58 55 53 59 74 78 75 Dewpt 37 35 40 39 44 42 42 40 44 44 48 48 50 43 42 39 44 48 48 49 RH 44 27 27 25 46 59 69 68 64 34 34 35 58 57 61 59 57 40 35 40 Wind dir SE W W W SE N N N N W W SW W N N N N W W SW Wind spd 5 3 8 8 5 0 0 0 0 2 6 5 3 0 0 0 0 3 6 6 Clouds CL CL CL CL CL CL FW FW FW FW FW CL CL FW FW FW FW FW FW FW PoP 12hr 0 0 0 0 0 QPF 12hr 0 0 0 0 0 Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 PDT 6hrly 23 05 11 17 23 05 11 17 23 05 11 17 23 05 11 17 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 51 78 50 70 50 68 50 68 Temp 56 52 72 72 55 52 66 69 54 52 63 66 54 52 63 67 Dewpt 51 45 51 48 51 48 49 49 53 51 51 50 52 50 51 50 PWind dir SW SW SW SW SW SW SW SW Wind char LT LT LT LT LT LT LT LT Avg clouds FW SC SC FW CL SC SC FW CL B1 B1 FW FW B1 B1 FW PoP 12hr 0 0 0 0 0 0 0 0 $$ Visit us at www.weather.gov/sanfrancisco Follow us on Facebook and X at: www.facebook.com/nwsbayarea x.com/nwsbayarea