


Heat Index Forecast Tables
Issued by NWS
Issued by NWS
314 FMUS23 KWNH 220657 PRBEHI DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 0654 UTC FRI AUG 22 2025 MEAN HEAT INDEX (DEG F) AND MEAN HI PROB (%) FRCSTS AT EASTERN US CITIES - DAYS 3 TO 7 FROM FRI AUG 22 2025 AKRON-CANTON_OH ALBANY_NY CAK 0825 0826 0827 0828 0829 ALB 0825 0826 0827 0828 0829 MEAN 62 59 60 63 65 MEAN 71 63 61 62 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 0 0 0 0 2 %>75 10 0 0 0 0 %>70 0 0 0 3 15 %>70 65 1 0 0 6 ASHEVILLE_NC ATLANTA_GA AVL 0825 0826 0827 0828 0829 ATL 0825 0826 0827 0828 0829 MEAN 69 64 62 63 65 MEAN 77 73 72 72 73 %>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 1 %>80 0 0 0 0 0 %>80 15 1 2 1 7 %>75 4 0 0 0 1 %>75 73 25 20 16 33 %>70 35 5 3 5 13 %>70 99 81 64 69 73 BALTIMORE_MD BIRMINGHAM_AL BWI 0825 0826 0827 0828 0829 BHM 0825 0826 0827 0828 0829 MEAN 76 70 67 68 72 MEAN 76 73 71 72 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 0 0 0 0 0 %>85 0 0 0 0 2 %>80 3 0 0 0 1 %>80 11 3 3 4 13 %>75 64 2 0 2 16 %>75 59 27 21 26 44 %>70 99 43 14 31 68 %>70 95 74 62 67 80 BOSTON_MA BUFFALO_NY BOS 0825 0826 0827 0828 0829 BUF 0825 0826 0827 0828 0829 MEAN 74 69 65 66 67 MEAN 64 60 60 63 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 5 0 0 0 0 %>80 0 0 0 0 0 %>75 39 1 0 0 5 %>75 0 0 0 0 1 %>70 89 35 5 8 29 %>70 0 0 0 2 10 CHARLESTON_SC CHARLESTON_WV CHS 0825 0826 0827 0828 0829 CRW 0825 0826 0827 0828 0829 MEAN 87 83 79 78 78 MEAN 68 64 63 65 69 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 1 0 0 0 0 %>95 0 0 0 0 0 %>90 16 4 0 0 0 %>90 0 0 0 0 0 %>85 71 30 7 3 3 %>85 0 0 0 0 0 %>80 98 77 37 28 31 %>80 0 0 0 0 1 %>75 100 98 80 75 80 %>75 2 0 0 1 9 %>70 100 100 97 97 98 %>70 27 4 4 9 38 CHARLOTTE_NC CHICAGO_IL CLT 0825 0826 0827 0828 0829 ORD 0825 0826 0827 0828 0829 MEAN 78 72 69 70 72 MEAN 61 62 64 68 69 %>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 22 1 0 0 2 %>80 0 0 0 0 1 %>75 86 20 7 10 21 %>75 0 0 0 7 11 %>70 100 76 41 50 64 %>70 0 0 4 36 42 CINCINNATI_OH CLEVELAND_OH LUK 0825 0826 0827 0828 0829 CLE 0825 0826 0827 0828 0829 MEAN 66 63 63 66 70 MEAN 64 61 62 65 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 2 %>80 0 0 0 0 0 %>75 0 0 0 1 15 %>75 0 0 0 0 2 %>70 10 2 2 16 49 %>70 1 0 1 10 19 COLUMBIA_SC COLUMBUS_OH CAE 0825 0826 0827 0828 0829 TZR 0825 0826 0827 0828 0829 MEAN 83 76 74 73 74 MEAN 63 61 61 64 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 20 1 0 0 0 %>85 0 0 0 0 0 %>80 85 15 7 4 7 %>80 0 0 0 0 1 %>75 100 66 37 30 37 %>75 0 0 0 0 6 %>70 100 97 80 77 80 %>70 3 0 0 7 30 DAYTON_OH DETROIT_MI MGY 0825 0826 0827 0828 0829 DET 0825 0826 0827 0828 0829 MEAN 64 61 62 65 69 MEAN 62 60 62 67 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 1 %>80 0 0 0 0 0 %>75 0 0 0 0 10 %>75 0 0 0 1 4 %>70 3 0 0 8 42 %>70 0 0 0 18 24 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0825 0826 0827 0828 0829 GRR 0825 0826 0827 0828 0829 MEAN 67 65 65 68 71 MEAN 59 58 60 65 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 1 %>85 0 0 0 0 0 %>80 0 0 0 0 6 %>80 0 0 0 0 0 %>75 2 0 1 6 26 %>75 0 0 0 2 4 %>70 21 6 11 31 60 %>70 0 0 0 15 22 GREENSBORO_NC HUNTSVILLE_AL GSO 0825 0826 0827 0828 0829 HSV 0825 0826 0827 0828 0829 MEAN 75 70 66 67 69 MEAN 73 71 69 71 73 %>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 2 %>80 5 0 0 0 1 %>80 6 4 1 3 12 %>75 55 5 2 3 11 %>75 34 23 12 18 38 %>70 97 46 20 25 44 %>70 76 61 45 54 72 INDIANAPOLIS_IN KNOXVILLE_TN IND 0825 0826 0827 0828 0829 TYS 0825 0826 0827 0828 0829 MEAN 63 61 62 65 69 MEAN 71 68 66 68 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 2 %>80 1 0 0 0 3 %>75 0 0 0 1 14 %>75 17 5 2 6 18 %>70 2 0 1 14 45 %>70 62 30 19 31 52 LEXINGTON_KY LOUISVILLE_KY LEX 0825 0826 0827 0828 0829 SDF 0825 0826 0827 0828 0829 MEAN 67 64 64 66 70 MEAN 67 65 65 67 71 %>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 1 %>80 0 0 0 0 2 %>80 0 0 0 0 5 %>75 1 0 0 2 14 %>75 1 0 0 2 24 %>70 19 5 4 18 50 %>70 21 6 6 23 60 MEMPHIS_TN MIAMI_FL MEM 0825 0826 0827 0828 0829 MIA 0825 0826 0827 0828 0829 MEAN 75 72 71 72 74 MEAN 94 95 94 93 92 %>100 0 0 0 0 0 %>100 10 11 12 7 6 %>95 0 0 0 0 0 %>95 43 46 44 32 28 %>90 0 0 0 0 1 %>90 82 85 81 72 68 %>85 0 1 0 1 5 %>85 98 99 97 95 94 %>80 8 6 3 7 19 %>80 100 100 100 100 100 %>75 48 28 19 28 45 %>75 100 100 100 100 100 %>70 90 66 58 63 73 %>70 100 100 100 100 100 MILWAUKEE_WI MOBILE_AL MKE 0825 0826 0827 0828 0829 MOB 0825 0826 0827 0828 0829 MEAN 60 61 64 67 67 MEAN 88 83 81 80 82 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 2 2 1 0 0 %>90 0 0 0 0 0 %>90 24 11 5 3 4 %>85 0 0 0 0 0 %>85 76 39 23 18 25 %>80 0 0 0 0 0 %>80 99 74 56 53 63 %>75 0 0 1 4 5 %>75 100 94 85 86 91 %>70 1 1 5 24 26 %>70 100 99 97 98 99 NASHVILLE_TN NEW_YORK_CITY_NY BNA 0825 0826 0827 0828 0829 NYC 0825 0826 0827 0828 0829 MEAN 71 70 68 69 72 MEAN 77 71 68 68 71 %>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 1 %>85 0 0 0 0 0 %>80 1 1 0 1 9 %>80 9 0 0 0 0 %>75 15 12 4 9 31 %>75 74 3 0 1 11 %>70 63 47 30 42 65 %>70 100 64 18 29 61 NORFOLK_VA ORLANDO_FL ORF 0825 0826 0827 0828 0829 ORL 0825 0826 0827 0828 0829 MEAN 81 75 73 72 74 MEAN 90 91 89 88 88 %>100 0 0 0 0 0 %>100 1 1 0 0 0 %>95 0 0 0 0 0 %>95 12 16 6 3 6 %>90 0 0 0 0 0 %>90 48 57 39 28 33 %>85 4 0 0 0 0 %>85 86 91 85 78 75 %>80 59 3 0 1 2 %>80 98 99 99 98 96 %>75 99 57 17 20 37 %>75 100 100 100 100 100 %>70 100 99 88 80 91 %>70 100 100 100 100 100 PHILADELPHIA_PA PITTSBURGH_PA PHL 0825 0826 0827 0828 0829 PIT 0825 0826 0827 0828 0829 MEAN 76 69 66 67 70 MEAN 65 61 61 63 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 2 0 0 0 1 %>80 0 0 0 0 0 %>75 64 1 0 1 11 %>75 0 0 0 0 2 %>70 100 30 9 19 52 %>70 5 0 0 3 17 PORTLAND_ME PROVIDENCE_RI PWM 0825 0826 0827 0828 0829 PVD 0825 0826 0827 0828 0829 MEAN 70 68 64 64 64 MEAN 74 69 65 65 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 3 0 0 0 0 %>75 1 0 0 0 1 %>75 37 1 0 0 4 %>70 42 16 1 1 10 %>70 93 33 6 9 28 RALEIGH-DURHAM_NC RICHMOND_VA RDU 0825 0826 0827 0828 0829 RIC 0825 0826 0827 0828 0829 MEAN 79 73 69 70 71 MEAN 78 71 69 69 71 %>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 0 0 0 0 %>85 0 0 0 0 0 %>80 31 1 0 0 2 %>80 18 0 0 0 2 %>75 91 22 6 6 18 %>75 85 8 3 5 18 %>70 100 83 43 46 61 %>70 100 68 35 38 60 SAVANNAH_GA TALLAHASSEE_FL SAV 0825 0826 0827 0828 0829 TLH 0825 0826 0827 0828 0829 MEAN 87 83 80 79 79 MEAN 88 83 81 82 82 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 1 0 0 0 0 %>95 2 1 0 0 0 %>90 22 6 1 0 1 %>90 30 8 2 3 4 %>85 77 35 13 6 10 %>85 86 36 18 23 25 %>80 99 80 50 38 44 %>80 100 76 59 69 66 %>75 100 98 86 83 83 %>75 100 96 91 96 93 %>70 100 100 99 99 98 %>70 100 100 99 100 99 TAMPA_FL WASHINGTON_DC TPA 0825 0826 0827 0828 0829 DCA 0825 0826 0827 0828 0829 MEAN 92 93 90 89 89 MEAN 76 69 67 68 71 %>100 7 6 2 1 1 %>100 0 0 0 0 0 %>95 28 30 14 11 10 %>95 0 0 0 0 0 %>90 63 71 49 43 39 %>90 0 0 0 0 0 %>85 90 95 86 82 76 %>85 0 0 0 0 0 %>80 99 100 98 98 96 %>80 4 0 0 0 2 %>75 100 100 100 100 100 %>75 61 2 1 4 18 %>70 100 100 100 100 100 %>70 99 42 18 30 61 URL IS WWW.WPC.NCEP.NOAA.GOV $$