


Heat Index Forecast Tables
Issued by NWS
Issued by NWS
497 FMUS23 KWNH 191656 PRBEHL DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 1654 UTC TUE AUG 19 2025 MINIMUM HEAT INDEX (DEG F) AND MINIMUM HI PROB (%) FRCSTS AT EASTERN US CITIES - DAYS 3 TO 7 FROM TUE AUG 19 2025 AKRON-CANTON_OH ALBANY_NY CAK 0822 0823 0824 0825 0826 ALB 0822 0823 0824 0825 0826 MIN 60 63 60 54 52 MIN 54 57 62 60 54 %>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 1 0 0 %>75 0 0 0 0 0 %>70 4 4 5 0 0 %>70 0 0 0 1 0 ASHEVILLE_NC ATLANTA_GA AVL 0822 0823 0824 0825 0826 ATL 0822 0823 0824 0825 0826 MIN 66 66 64 59 55 MIN 73 72 70 69 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 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 16 5 3 3 1 %>70 5 3 1 1 0 %>70 87 83 56 37 13 BALTIMORE_MD BIRMINGHAM_AL BWI 0822 0823 0824 0825 0826 BHM 0822 0823 0824 0825 0826 MIN 63 64 69 66 61 MIN 73 73 72 68 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 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 0 0 3 3 0 %>75 26 22 13 6 2 %>70 3 7 39 23 4 %>70 87 83 75 35 15 BOSTON_MA BUFFALO_NY BOS 0822 0823 0824 0825 0826 BUF 0822 0823 0824 0825 0826 MIN 58 60 64 66 60 MIN 57 63 63 57 52 %>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 1 %>75 0 0 1 0 0 %>70 0 0 2 11 4 %>70 0 1 7 1 0 CHARLESTON_SC CHARLESTON_WV CHS 0822 0823 0824 0825 0826 CRW 0822 0823 0824 0825 0826 MIN 77 76 75 75 73 MIN 67 68 67 59 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 2 0 0 0 1 %>85 0 0 0 0 0 %>80 19 6 4 5 7 %>80 0 0 0 0 0 %>75 65 57 45 50 35 %>75 1 3 1 0 0 %>70 96 98 95 96 77 %>70 21 30 18 3 0 CHARLOTTE_NC CHICAGO_IL CLT 0822 0823 0824 0825 0826 ORD 0822 0823 0824 0825 0826 MIN 71 70 69 67 64 MIN 65 67 60 56 56 %>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 3 2 3 3 1 %>75 2 2 0 0 0 %>70 73 46 35 26 10 %>70 7 19 1 1 1 CINCINNATI_OH CLEVELAND_OH LUK 0822 0823 0824 0825 0826 CLE 0822 0823 0824 0825 0826 MIN 66 68 63 57 55 MIN 64 66 64 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 1 1 0 0 %>75 1 3 2 0 0 %>70 10 20 10 0 0 %>70 12 18 15 2 1 COLUMBIA_SC COLUMBUS_OH CAE 0822 0823 0824 0825 0826 TZR 0822 0823 0824 0825 0826 MIN 73 72 71 71 68 MIN 63 65 61 54 52 %>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 25 9 6 9 5 %>75 0 0 1 0 0 %>70 93 74 59 63 30 %>70 5 7 6 0 0 DAYTON_OH DETROIT_MI MGY 0822 0823 0824 0825 0826 DET 0822 0823 0824 0825 0826 MIN 64 66 61 55 53 MIN 63 66 62 56 54 %>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 1 0 0 %>75 0 1 0 0 0 %>70 4 6 5 0 0 %>70 2 14 1 0 0 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0822 0823 0824 0825 0826 GRR 0822 0823 0824 0825 0826 MIN 67 67 64 58 57 MIN 58 63 58 52 49 %>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 1 0 2 0 0 %>75 0 0 0 0 0 %>70 18 12 13 1 1 %>70 0 1 0 0 0 GREENSBORO_NC HUNTSVILLE_AL GSO 0822 0823 0824 0825 0826 HSV 0822 0823 0824 0825 0826 MIN 68 67 67 65 61 MIN 73 73 71 65 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 1 0 0 0 0 %>75 0 0 1 2 0 %>75 22 19 9 4 2 %>70 25 17 22 16 4 %>70 78 81 70 20 10 INDIANAPOLIS_IN KNOXVILLE_TN IND 0822 0823 0824 0825 0826 TYS 0822 0823 0824 0825 0826 MIN 63 64 60 55 53 MIN 71 70 70 63 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 0 %>80 0 0 0 0 0 %>75 0 0 0 0 0 %>75 7 2 1 1 0 %>70 1 1 2 0 0 %>70 62 56 44 9 2 LEXINGTON_KY LOUISVILLE_KY LEX 0822 0823 0824 0825 0826 SDF 0822 0823 0824 0825 0826 MIN 67 68 66 58 55 MIN 68 69 66 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 1 3 2 0 0 %>75 1 1 1 0 0 %>70 17 32 16 2 0 %>70 26 38 17 1 0 MEMPHIS_TN MIAMI_FL MEM 0822 0823 0824 0825 0826 MIA 0822 0823 0824 0825 0826 MIN 72 72 71 67 65 MIN 84 83 84 84 84 %>100 0 0 0 0 0 %>100 0 0 1 0 0 %>95 0 0 0 0 0 %>95 2 1 4 4 2 %>90 0 0 0 0 0 %>90 18 15 22 21 19 %>85 0 0 0 0 0 %>85 50 47 50 49 50 %>80 0 0 0 0 0 %>80 69 68 73 69 70 %>75 9 12 10 4 3 %>75 87 86 90 87 87 %>70 76 74 68 26 17 %>70 97 96 98 97 97 MILWAUKEE_WI MOBILE_AL MKE 0822 0823 0824 0825 0826 MOB 0822 0823 0824 0825 0826 MIN 65 66 58 55 55 MIN 76 75 75 74 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 1 0 0 0 0 %>85 0 0 0 0 0 %>85 4 2 1 1 2 %>80 0 0 0 0 0 %>80 21 15 11 8 9 %>75 3 2 0 0 0 %>75 58 52 50 42 29 %>70 9 15 1 1 1 %>70 89 88 91 86 59 NASHVILLE_TN NEW_YORK_CITY_NY BNA 0822 0823 0824 0825 0826 NYC 0822 0823 0824 0825 0826 MIN 71 72 69 62 60 MIN 62 65 68 68 63 %>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 6 10 4 1 0 %>75 0 0 1 3 0 %>70 59 73 42 7 4 %>70 0 6 29 33 6 NORFOLK_VA ORLANDO_FL ORF 0822 0823 0824 0825 0826 ORL 0822 0823 0824 0825 0826 MIN 70 69 71 73 70 MIN 79 78 78 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 5 3 3 3 4 %>80 0 0 0 0 0 %>80 36 28 28 31 32 %>75 2 4 15 22 11 %>75 82 77 80 83 81 %>70 54 45 67 80 55 %>70 98 98 99 99 99 PHILADELPHIA_PA PITTSBURGH_PA PHL 0822 0823 0824 0825 0826 PIT 0822 0823 0824 0825 0826 MIN 60 61 66 65 60 MIN 61 64 64 57 53 %>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 2 0 %>75 0 0 0 0 0 %>70 0 0 8 18 4 %>70 4 7 8 1 0 PORTLAND_ME PROVIDENCE_RI PWM 0822 0823 0824 0825 0826 PVD 0822 0823 0824 0825 0826 MIN 54 58 61 62 58 MIN 58 59 64 66 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 0 %>80 0 0 0 0 0 %>75 0 0 0 0 1 %>75 0 0 0 0 1 %>70 0 0 2 4 4 %>70 0 0 4 12 5 RALEIGH-DURHAM_NC RICHMOND_VA RDU 0822 0823 0824 0825 0826 RIC 0822 0823 0824 0825 0826 MIN 68 67 68 69 64 MIN 64 63 67 66 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 1 1 3 3 1 %>75 0 0 1 5 1 %>70 25 19 28 35 10 %>70 7 3 19 24 7 SAVANNAH_GA TALLAHASSEE_FL SAV 0822 0823 0824 0825 0826 TLH 0822 0823 0824 0825 0826 MIN 77 75 75 75 74 MIN 77 76 76 76 74 %>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 2 0 0 0 0 %>85 1 0 0 0 0 %>80 19 7 3 4 6 %>80 18 7 3 4 5 %>75 64 55 44 48 36 %>75 76 65 69 63 38 %>70 95 97 96 97 81 %>70 98 98 99 99 84 TAMPA_FL WASHINGTON_DC TPA 0822 0823 0824 0825 0826 DCA 0822 0823 0824 0825 0826 MIN 84 83 83 84 82 MIN 63 64 69 66 61 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 2 2 3 3 1 %>95 0 0 0 0 0 %>90 15 13 15 16 9 %>90 0 0 0 0 0 %>85 45 40 40 44 35 %>85 0 0 0 0 0 %>80 74 69 68 73 68 %>80 0 0 0 0 0 %>75 90 88 88 90 89 %>75 0 0 1 3 0 %>70 97 97 97 98 97 %>70 3 3 33 20 4 URL IS WWW.WPC.NCEP.NOAA.GOV $$