


Heat Index Forecast Tables
Issued by NWS
Issued by NWS
378 FMUS23 KWNH 210745 PRBEHL DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 0744 UTC THU AUG 21 2025 MINIMUM HEAT INDEX (DEG F) AND MINIMUM HI PROB (%) FRCSTS AT EASTERN US CITIES - DAYS 3 TO 7 FROM THU AUG 21 2025 AKRON-CANTON_OH ALBANY_NY CAK 0824 0825 0826 0827 0828 ALB 0824 0825 0826 0827 0828 MIN 63 55 51 48 48 MIN 63 63 56 51 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 0 0 0 0 0 %>75 0 0 0 0 0 %>70 3 0 0 0 0 %>70 0 0 0 0 0 ASHEVILLE_NC ATLANTA_GA AVL 0824 0825 0826 0827 0828 ATL 0824 0825 0826 0827 0828 MIN 64 61 55 53 51 MIN 71 69 63 63 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 1 1 0 0 1 %>70 1 0 0 0 0 %>70 62 33 5 6 5 BALTIMORE_MD BIRMINGHAM_AL BWI 0824 0825 0826 0827 0828 BHM 0824 0825 0826 0827 0828 MIN 69 69 62 58 58 MIN 71 68 63 63 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 0 0 0 %>75 10 3 1 1 2 %>70 35 40 2 0 1 %>70 67 28 9 10 8 BOSTON_MA BUFFALO_NY BOS 0824 0825 0826 0827 0828 BUF 0824 0825 0826 0827 0828 MIN 66 67 63 58 55 MIN 64 58 53 50 51 %>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 3 5 3 0 0 %>70 5 0 0 0 0 CHARLESTON_SC CHARLESTON_WV CHS 0824 0825 0826 0827 0828 CRW 0824 0825 0826 0827 0828 MIN 74 74 73 70 69 MIN 68 60 54 52 51 %>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 4 4 2 %>80 0 0 0 0 0 %>75 34 38 30 20 13 %>75 0 0 0 0 0 %>70 96 94 77 53 40 %>70 21 1 0 0 0 CHARLOTTE_NC CHICAGO_IL CLT 0824 0825 0826 0827 0828 ORD 0824 0825 0826 0827 0828 MIN 68 68 63 61 59 MIN 59 54 52 53 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 0 0 0 %>75 0 0 0 0 0 %>70 26 32 5 4 3 %>70 1 0 0 0 1 CINCINNATI_OH CLEVELAND_OH LUK 0824 0825 0826 0827 0828 CLE 0824 0825 0826 0827 0828 MIN 66 56 53 51 52 MIN 66 59 56 55 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 2 0 0 0 0 %>70 13 0 0 0 0 %>70 15 1 0 0 1 COLUMBIA_SC COLUMBUS_OH CAE 0824 0825 0826 0827 0828 TZR 0824 0825 0826 0827 0828 MIN 70 71 67 65 62 MIN 64 55 51 48 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 2 10 2 2 2 %>75 0 0 0 0 0 %>70 51 61 22 16 10 %>70 5 0 0 0 0 DAYTON_OH DETROIT_MI MGY 0824 0825 0826 0827 0828 DET 0824 0825 0826 0827 0828 MIN 64 55 51 49 50 MIN 62 57 53 52 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 0 0 0 %>75 0 0 0 0 0 %>70 5 0 0 0 0 %>70 1 0 0 0 0 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0824 0825 0826 0827 0828 GRR 0824 0825 0826 0827 0828 MIN 65 57 54 53 54 MIN 58 53 48 47 51 %>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 0 0 0 %>75 0 0 0 0 0 %>70 12 0 0 0 0 %>70 0 0 0 0 0 GREENSBORO_NC HUNTSVILLE_AL GSO 0824 0825 0826 0827 0828 HSV 0824 0825 0826 0827 0828 MIN 66 67 60 58 56 MIN 71 64 62 59 58 %>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 0 0 0 %>75 6 1 0 1 0 %>70 7 21 2 1 1 %>70 67 8 3 4 3 INDIANAPOLIS_IN KNOXVILLE_TN IND 0824 0825 0826 0827 0828 TYS 0824 0825 0826 0827 0828 MIN 62 55 51 50 52 MIN 70 63 59 56 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 1 0 0 0 0 %>70 43 4 0 0 0 LEXINGTON_KY LOUISVILLE_KY LEX 0824 0825 0826 0827 0828 SDF 0824 0825 0826 0827 0828 MIN 67 56 52 51 52 MIN 68 58 54 53 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 1 0 0 0 0 %>75 0 0 0 0 0 %>70 19 0 0 0 0 %>70 23 0 0 0 0 MEMPHIS_TN MIAMI_FL MEM 0824 0825 0826 0827 0828 MIA 0824 0825 0826 0827 0828 MIN 72 65 63 60 60 MIN 83 85 84 85 82 %>100 0 0 0 0 0 %>100 0 1 0 0 0 %>95 0 0 0 0 0 %>95 2 5 4 4 2 %>90 0 0 0 0 0 %>90 18 25 22 26 16 %>85 0 0 0 0 0 %>85 44 52 50 54 41 %>80 0 0 0 0 0 %>80 68 72 70 75 64 %>75 11 1 1 1 1 %>75 87 90 88 92 83 %>70 81 11 9 6 6 %>70 97 98 97 98 94 MILWAUKEE_WI MOBILE_AL MKE 0824 0825 0826 0827 0828 MOB 0824 0825 0826 0827 0828 MIN 58 54 52 54 57 MIN 75 75 72 71 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 1 1 1 1 1 %>80 0 0 0 0 0 %>80 11 9 7 7 6 %>75 0 0 0 0 0 %>75 47 44 28 26 18 %>70 1 0 0 0 2 %>70 88 87 66 59 41 NASHVILLE_TN NEW_YORK_CITY_NY BNA 0824 0825 0826 0827 0828 NYC 0824 0825 0826 0827 0828 MIN 70 61 59 56 56 MIN 69 70 64 59 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 2 0 0 0 0 %>75 0 1 0 0 0 %>70 51 2 1 2 1 %>70 34 57 2 1 1 NORFOLK_VA ORLANDO_FL ORF 0824 0825 0826 0827 0828 ORL 0824 0825 0826 0827 0828 MIN 72 73 70 67 66 MIN 78 78 78 78 76 %>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 2 2 2 2 %>80 1 0 0 1 0 %>80 25 29 27 24 17 %>75 19 27 10 6 4 %>75 81 85 82 79 61 %>70 69 83 55 32 26 %>70 99 99 99 99 93 PHILADELPHIA_PA PITTSBURGH_PA PHL 0824 0825 0826 0827 0828 PIT 0824 0825 0826 0827 0828 MIN 66 69 61 56 55 MIN 66 58 53 49 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 0 0 0 0 0 %>75 0 0 0 0 0 %>70 3 26 1 1 1 %>70 9 0 0 0 0 PORTLAND_ME PROVIDENCE_RI PWM 0824 0825 0826 0827 0828 PVD 0824 0825 0826 0827 0828 MIN 63 64 60 55 53 MIN 65 67 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 0 0 0 %>75 0 0 0 0 0 %>70 3 3 2 0 0 %>70 3 10 4 0 0 RALEIGH-DURHAM_NC RICHMOND_VA RDU 0824 0825 0826 0827 0828 RIC 0824 0825 0826 0827 0828 MIN 66 70 64 61 58 MIN 65 69 62 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 2 0 0 0 %>75 0 2 0 0 0 %>70 9 46 5 3 2 %>70 6 35 4 2 2 SAVANNAH_GA TALLAHASSEE_FL SAV 0824 0825 0826 0827 0828 TLH 0824 0825 0826 0827 0828 MIN 74 74 71 70 69 MIN 76 75 73 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 1 1 2 3 2 %>80 2 1 3 2 2 %>75 33 33 21 18 13 %>75 65 51 27 19 21 %>70 96 95 62 53 44 %>70 99 99 76 60 68 TAMPA_FL WASHINGTON_DC TPA 0824 0825 0826 0827 0828 DCA 0824 0825 0826 0827 0828 MIN 85 85 83 81 78 MIN 68 69 61 58 58 %>100 2 1 0 0 0 %>100 0 0 0 0 0 %>95 8 6 1 0 0 %>95 0 0 0 0 0 %>90 24 23 11 3 2 %>90 0 0 0 0 0 %>85 51 52 42 22 11 %>85 0 0 0 0 0 %>80 77 80 73 59 38 %>80 0 0 0 0 0 %>75 92 95 91 89 75 %>75 0 1 0 0 0 %>70 98 99 98 99 95 %>70 22 33 1 0 1 URL IS WWW.WPC.NCEP.NOAA.GOV $$