FMUS23 KWNH 230743 PRBEHL DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 0741 UTC SUN AUG 23 2026 MINIMUM HEAT INDEX (DEG F) AND MINIMUM HI PROB (%) FRCSTS AT EASTERN US CITIES - DAYS 3 TO 7 FROM SUN AUG 23 2026 AKRON-CANTON_OH ALBANY_NY CAK 0826 0827 0828 0829 0830 ALB 0826 0827 0828 0829 0830 MIN 55 62 63 60 59 MIN 55 58 63 60 55 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 0 %>75 0 0 0 0 0 %>70 0 0 0 1 2 %>70 0 0 1 2 0 ASHEVILLE_NC ATLANTA_GA AVL 0826 0827 0828 0829 0830 ATL 0826 0827 0828 0829 0830 MIN 61 64 63 63 64 MIN 71 72 71 71 72 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 0 %>75 13 16 9 9 13 %>70 3 6 4 3 5 %>70 68 80 63 64 69 BALTIMORE_MD BIRMINGHAM_AL BWI 0826 0827 0828 0829 0830 BHM 0826 0827 0828 0829 0830 MIN 65 71 71 70 68 MIN 72 73 72 71 72 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 1 %>80 1 2 1 1 2 %>75 0 11 12 10 10 %>75 18 27 18 16 21 %>70 10 61 61 54 38 %>70 74 79 69 64 67 BOSTON_MA BUFFALO_NY BOS 0826 0827 0828 0829 0830 BUF 0826 0827 0828 0829 0830 MIN 61 64 67 67 62 MIN 56 62 63 59 57 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 1 1 %>75 0 0 0 0 0 %>70 1 1 17 21 6 %>70 0 1 1 1 1 CHARLESTON_SC CHARLESTON_WV CHS 0826 0827 0828 0829 0830 CRW 0826 0827 0828 0829 0830 MIN 76 77 77 77 77 MIN 57 66 67 65 65 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 1 1 1 0 %>90 0 0 0 0 0 %>85 3 6 7 7 5 %>85 0 0 0 0 0 %>80 19 25 27 27 25 %>80 0 0 0 0 0 %>75 55 61 60 64 67 %>75 0 0 0 0 1 %>70 87 90 87 91 95 %>70 0 11 7 7 13 CHARLOTTE_NC CHICAGO_IL CLT 0826 0827 0828 0829 0830 ORD 0826 0827 0828 0829 0830 MIN 67 70 70 70 70 MIN 65 67 65 64 66 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 00 %>75 5 10 9 9 10 %>75 1 1 1 1 2 %>70 28 56 52 56 55 %>70 5 8 7 10 18 CINCINNATI_OH CLEVELAND_OH LUK 0826 0827 0828 0829 0830 CLE 0826 0827 0828 0829 0830 MIN 59 65 65 63 64 MIN 59 65 66 63 62 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 2 %>75 1 2 2 2 2 %>70 0 6 5 4 14 %>70 3 10 14 8 8 COLUMBIA_SC COLUMBUS_OH CAE 0826 0827 0828 0829 0830 TZR 0826 0827 0828 0829 0830 MIN 71 73 73 73 73 MIN 57 63 64 62 62 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 1 2 1 2 2 %>80 0 0 0 0 0 %>75 18 28 25 31 31 %>75 0 0 0 0 1 %>70 66 80 81 84 86 %>70 0 1 1 2 7 DAYTON_OH DETROIT_MI MGY 0826 0827 0828 0829 0830 DET 0826 0827 0828 0829 0830 MIN 58 64 64 62 63 MIN 63 68 65 62 64 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 2 %>75 0 1 1 1 2 %>70 0 3 2 3 11 %>70 2 15 8 6 12 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0826 0827 0828 0829 0830 GRR 0826 0827 0828 0829 0830 MIN 64 68 67 66 67 MIN 59 63 59 56 59 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 1 %>80 0 0 0 0 0 %>75 0 3 1 0 9 %>75 0 0 0 0 0 %>70 5 31 19 13 33 %>70 0 1 0 0 3 GREENSBORO_NC HUNTSVILLE_AL GSO 0826 0827 0828 0829 0830 HSV 0826 0827 0828 0829 0830 MIN 64 69 69 69 69 MIN 69 71 70 69 70 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 1 1 0 0 0 %>75 1 4 3 3 4 %>75 11 15 7 5 8 %>70 10 37 35 37 37 %>70 45 60 50 42 47 INDIANAPOLIS_IN KNOXVILLE_TN IND 0826 0827 0828 0829 0830 TYS 0826 0827 0828 0829 0830 MIN 60 65 64 62 64 MIN 64 69 68 67 68 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 2 %>75 0 5 1 1 2 %>70 0 5 2 2 12 %>70 7 37 26 2127 LEXINGTON_KY LOUISVILLE_KY LEX 0826 0827 0828 0829 0830 SDF 0826 0827 0828 0829 0830 MIN 60 66 66 65 66 MIN 62 68 68 66 67 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 1 %>75 0 1 0 1 4 %>75 0 1 1 1 7 %>70 0 17 12 10 21 %>70 1 27 23 15 31 MEMPHIS_TN MIAMI_FL MEM 0826 0827 0828 0829 0830 MIA 0826 0827 0828 0829 0830 MIN 74 73 73 72 73 MIN 86 87 87 87 87 %>100 0 0 0 0 0 %>100 1 1 1 2 3 %>95 0 0 0 0 0 %>95 8 10 9 12 14 %>90 0 0 0 0 0 %>90 30 33 35 38 37 %>85 0 1 0 0 1 %>85 59 62 63 64 64 %>80 6 7 2 2 6 %>80 82 85 85 85 85 %>75 38 35 26 22 31 %>75 95 96 96 96 96 %>70 83 76 78 70 71 %>70 99 99 99 99 99 MILWAUKEE_WI MOBILE_AL MKE 0826 0827 0828 0829 0830 MOB 0826 0827 0828 0829 0830 MIN 65 65 64 63 65 MIN 76 76 75 75 75 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 2 3 2 0 1 %>85 0 0 0 0 0 %>85 10 10 8 3 5 %>80 0 0 0 0 0 %>80 28 29 23 17 21 %>75 1 1 0 1 2 %>75 58 57 50 48 51 %>70 9 7 6 8 15 %>70 84 83 77 81 82 NASHVILLE_TN NEW_YORK_CITY_NY BNA 0826 0827 0828 0829 0830 NYC 0826 0827 0828 0829 0830 MIN 67 70 69 68 69 MIN 64 69 71 70 66 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 1 %>80 0 0 0 0 0 %>75 3 7 4 4 10 %>75 0 3 8 6 4 %>70 22 46 43 34 41 %>70 5 41 59 49 23 NORFOLK_VA ORLANDO_FL ORF 0826 0827 0828 0829 0830 ORL 0826 0827 0828 0829 0830 MIN 73 75 75 76 76 MIN 77 77 77 78 78 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 2 3 4 5 6 %>80 3 6 7 12 9 %>80 24 26 28 31 34 %>75 36 56 56 62 58 %>75 74 72 71 73 76 %>70 79 91 93 95 94 %>70 97 96 96 96 96 PHILADELPHIA_PA PITTSBURGH_PA PHL 0826 0827 0828 0829 0830 PIT 0826 0827 0828 0829 0830 MIN 63 69 70 69 66 MIN 56 62 64 61 60 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 1 %>80 0 0 0 0 0 %>75 0 1 3 5 5 %>75 0 0 0 0 0 %>70 1 33 56 44 25 %>70 0 0 0 1 3 PORTLAND_ME PROVIDENCE_RI PWM 0826 0827 0828 0829 0830 PVD 0826 0827 0828 0829 0830MIN 58 60 63 62 57 MIN 59 64 67 67 61 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 0 0 0 0 %>80 0 0 0 0 0 %>75 0 0 0 0 0 %>75 0 0 1 2 0 %>70 1 0 5 5 1 %>70 1 2 19 21 5 RALEIGH-DURHAM_NC RICHMOND_VA RDU 0826 0827 0828 0829 0830 RIC 0826 0827 0828 0829 0830 MIN 68 71 71 72 72 MIN 65 70 71 71 70 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 0 0 0 %>80 0 1 1 0 1 %>80 0 0 0 0 1 %>75 4 15 14 15 15 %>75 0 5 11 9 11 %>70 31 65 66 74 68 %>70 7 52 60 61 47 SAVANNAH_GA TALLAHASSEE_FL SAV 0826 0827 0828 0829 0830 TLH 0826 0827 0828 0829 0830 MIN 75 76 75 76 76 MIN 75 75 75 75 75 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 0 %>90 0 0 0 0 0 %>85 1 2 4 3 3 %>85 1 1 1 1 1 %>80 11 15 18 18 19 %>80 9 9 11 10 12 %>75 51 56 52 58 63 %>75 49 48 47 47 52 %>70 91 92 86 92 95 %>70 90 89 85 87 89 TAMPA_FL WASHINGTON_DC TPA 0826 0827 0828 0829 0830 DCA 0826 0827 0828 0829 0830 MIN 79 79 79 79 79 MIN 64 70 71 70 69 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 1 1 1 %>95 0 0 0 0 0 %>90 2 3 5 4 4 %>90 0 0 0 0 0 %>85 14 16 18 18 17 %>85 0 0 0 0 0 %>80 43 43 44 45 43 %>80 0 0 0 0 1 %>75 76 74 74 75 74 %>75 0 5 6 6 9 %>70 95 93 92 93 93 %>70 3 55 59 55 40 URL IS WWW.WPC.NCEP.NOAA.GOV $$