FOUS55 KBYZ 181851 PFMBYZ Point Forecast Matrices National Weather Service Billings MT 1251 PM MDT Mon May 18 2026 MTZ235-182200- Billings-Yellowstone MT 45.81N 108.53W Elev. 3648 ft 1251 PM MDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 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 50 30 67 42 71 Temp 48 49 44 37 32 30 44 59 64 65 57 48 44 43 54 67 70 65 Dewpt 27 26 27 28 27 26 26 27 24 24 28 28 26 24 26 31 33 35 RH 44 40 51 70 81 85 49 29 22 21 33 46 49 47 34 26 25 33 Wind dir N NE E E SW SW SW SW SW SW S SW SW SW W W W N Wind spd 10 10 6 4 4 5 8 9 9 9 8 6 11 14 14 8 9 9 Clouds B2 B1 FW FW FW FW FW FW FW B1 B1 SC SC B1 SC SC B1 B2 PoP 12hr 0 0 0 5 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs D Tstms S Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 43 61 40 68 43 79 49 85 Temp 51 44 52 61 49 42 61 67 52 46 70 76 58 52 78 82 Dewpt 41 39 41 37 37 36 38 34 36 36 39 36 37 37 39 34 PWind dir N N W SW S SW SW SW Wind char GN GN LT LT LT LT LT GN Avg clouds OV OV B2 B1 B1 B1 SC SC SC SC SC FW SC SC FW FW PoP 12hr 80 70 20 10 5 0 5 5 Rain shwrs D D L C S Tstms S S $$ MTZ065-182200- Livingston-Park MT 45.70N 110.47W Elev. 4656 ft 1251 PM MDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 48 26 62 36 65 Temp 45 46 40 33 29 27 42 56 60 60 51 44 39 37 50 61 64 60 Dewpt 23 24 26 25 22 20 19 23 22 23 29 28 27 26 27 30 32 34 RH 41 42 57 72 75 74 39 27 23 24 42 53 62 64 41 31 30 37 Wind dir E E E NW NW W W W NW W SW SW W W W W W W Wind spd 6 6 4 3 5 5 5 11 10 6 4 5 8 8 8 11 10 9 Clouds B2 B1 FW FW FW FW FW SC SC B1 B1 B1 SC SC B1 B1 B1 OV PoP 12hr 40 10 5 5 30 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs S C C D Snowshwrs S Tstms S S Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 36 57 34 66 38 75 45 81 Temp 46 38 47 57 45 37 59 65 49 42 69 74 56 48 75 78 Dewpt 39 34 35 34 33 31 32 32 33 32 32 32 34 33 32 32 PWind dir NE NW SW W SW W SW SW Wind char LT LT LT LT LT GN GN GN Avg clouds OV OV B2 B1 B1 SC SC SC SC SC SC SC B1 SC SC SC PoP 12hr 90 80 20 10 5 5 5 5 Rain shwrs D D D C S Tstms S S $$ MTZ032-182200- Miles City-Custer MT 46.42N 105.90W Elev. 2628 ft 1251 PM MDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 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 48 30 64 40 73 Temp 46 46 43 38 32 30 42 54 62 64 54 48 44 40 53 69 72 69 Dewpt 31 31 31 33 31 30 30 29 29 28 29 27 27 26 29 35 33 36 RH 55 55 62 82 96100 62 38 28 25 38 44 51 57 39 28 24 30 Wind dir N N N NW W W S SW SW S SE S S S SW W W NW Wind spd 13 12 8 3 3 2 3 4 3 6 9 9 6 6 6 6 6 9 Clouds B2 B2 B2 FW FW FW CL CL FW SC SC SC SC SC SC SC SC B1 PoP 12hr 5 5 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 44 65 40 69 42 77 47 83 Temp 53 45 60 61 49 42 63 67 51 44 71 75 57 49 78 81 Dewpt 43 40 43 40 41 39 40 37 39 38 40 38 41 40 41 37 PWind dir NW N NW NW SE S S W Wind char GN GN LT LT LT LT LT LT Avg clouds B2 B2 B2 B1 B1 SC SC SC SC SC SC FW FW SC SC FW PoP 12hr 40 40 20 10 5 0 5 5 Rain shwrs C C C C S $$ MTZ033-182200- Baker-Fallon MT 46.38N 104.24W Elev. 2969 ft 1251 PM MDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 UTC 3hrly 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 Max/Min 46 28 60 36 73 Temp 44 45 39 36 31 29 39 51 58 60 48 43 40 37 54 70 72 70 Dewpt 33 33 32 33 30 29 27 26 24 22 25 25 25 22 25 29 29 32 RH 65 62 76 89 96100 62 37 27 23 40 49 55 54 32 22 20 24 Wind dir NW N NW NW N N NW W NW W SE SE S S S SW SW SW Wind spd 14 13 10 4 0 0 4 5 4 3 9 12 12 12 14 12 11 12 Clouds B2 B2 B2 B2 B1 B1 SC CL CL FW SC SC SC B1 SC SC SC SC PoP 12hr 40 20 0 0 5 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs C S S Obvis F Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 39 66 37 66 40 75 46 83 Temp 49 40 62 60 46 41 61 64 48 42 70 74 54 48 79 81 Dewpt 41 38 40 37 41 39 37 35 39 38 37 35 41 40 38 35 PWind dir E N NW NW SE SW S SW Wind char GN GN LT LT LT LT LT LT Avg clouds B1 B1 B2 B1 B1 B1 B1 B1 SC SC SC FW FW SC FW FW PoP 12hr 20 50 30 20 20 5 5 5 Rain shwrs S C C C S S S S Tstms S S $$ WYZ199-182200- Sheridan-Sheridan WY 44.80N 106.96W Elev. 4019 ft 1251 PM MDT Mon May 18 2026 Date Mon 05/18/26 Tue 05/19/26 Wed 05/20/26 MDT 3hrly 03 06 09 12 15 18 21 00 03 06 09 12 15 18 21 00 03 06 09 12 15 18 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 43 24 60 31 67 Temp 40 43 37 31 26 24 40 54 58 58 46 39 34 32 48 64 66 65 Dewpt 30 29 29 27 23 20 25 27 27 28 30 28 25 24 29 31 32 32 RH 67 57 72 85 88 84 55 35 30 32 53 64 69 72 47 29 28 29 Wind dir NW NW NW W SW SW E NE SE S S S S SW N N NW NW Wind spd 17 14 4 3 2 2 1 2 3 8 5 5 3 2 1 3 2 4 Clouds OV B2 B2 FW FW FW FW FW FW SC SC SC SC B1 SC SC SC SC PoP 12hr 20 5 0 0 10 QPF 12hr 0 0 0 0 0 Snow 12hr 00-00 00-00 00-00 Rain shwrs Snowshwrs Date Thu 05/21/26 Fri 05/22/26 Sat 05/23/26 Sun 05/24/26 MDT 6hrly 00 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 UTC 6hrly 06 12 18 00 06 12 18 00 06 12 18 00 06 12 18 00 Min/Max 36 55 33 64 35 74 40 82 Temp 47 37 50 55 43 35 58 62 45 37 68 72 50 42 77 78 Dewpt 36 35 41 37 37 34 37 36 36 33 38 37 36 34 37 37 PWind dir NW NW W NW SW NW SW NW Wind char LT LT LT LT LT LT LT LT Avg clouds B1 B1 B2 OV B1 B1 B1 B1 SC SC FW FW FW FW FW FW PoP 12hr 30 90 40 30 10 10 0 5 Rain shwrs C L D C C C C Tstms C $$