FMUS23 KWNH 221821 PRBEHL DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 1818 UTC SAT AUG 22 2026 MINIMUM HEAT INDEX (DEG F) AND MINIMUM HI PROB (%) FRCSTS AT EASTERN US CITIES - DAYS 3 TO 7 FROM SAT AUG 22 2026 AKRON-CANTON_OH ALBANY_NY CAK 0825 0826 0827 0828 0829 ALB 0825 0826 0827 0828 0829 MIN 54 56 61 63 61 MIN 55 56 59 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 0 0 0 0 0 %>70 0 0 0 0 1 %>70 0 0 0 1 2 ASHEVILLE_NC ATLANTA_GA AVL 0825 0826 0827 0828 0829 ATL 0825 0826 0827 0828 0829 MIN 59 62 64 63 63 MIN 70 72 73 72 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 7 11 19 9 11 %>70 0 2 6 4 4 %>70 53 71 85 74 75 BALTIMORE_MD BIRMINGHAM_AL BWI 0825 0826 0827 0828 0829 BHM 0825 0826 0827 0828 0829 MIN 63 66 71 71 71 MIN 71 73 73 72 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 2 4 1 1 %>75 0 1 10 11 12 %>75 13 26 31 20 20 %>70 4 15 67 65 64 %>70 66 77 79 76 75 BOSTON_MA BUFFALO_NY BOS 0825 0826 0827 0828 0829 BUF 0825 0826 0827 0828 0829 MIN 61 62 64 67 66 MIN 57 57 62 64 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 1 %>75 0 0 0 0 0 %>70 1 0 1 14 17 %>70 0 0 1 2 2 CHARLESTON_SC CHARLESTON_WV CHS 0825 0826 0827 0828 0829 CRW 0825 0826 0827 0828 0829 MIN 77 76 77 77 77 MIN 56 58 66 67 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 2 0 1 1 1 %>90 0 0 0 0 0 %>85 9 3 6 6 6 %>85 0 0 0 0 0 %>80 31 20 27 25 26 %>80 0 0 0 0 0 %>75 64 58 63 63 64 %>75 0 0 0 0 0 %>70 90 90 91 91 92 %>70 0 0 9 10 12 CHARLOTTE_NC CHICAGO_IL CLT 0825 0826 0827 0828 0829 ORD 0825 0826 0827 0828 0829 MIN 66 68 71 70 71 MIN 62 66 67 66 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 1 0 0 %>80 0 0 0 00 %>75 0 5 14 8 11 %>75 0 1 1 1 2 %>70 7 32 57 49 58 %>70 2 11 14 10 16 CINCINNATI_OH CLEVELAND_OH LUK 0825 0826 0827 0828 0829 CLE 0825 0826 0827 0828 0829 MIN 57 60 65 65 65 MIN 59 60 65 66 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 0 %>75 0 1 2 2 2 %>70 0 0 5 7 10 %>70 2 4 9 14 12 COLUMBIA_SC COLUMBUS_OH CAE 0825 0826 0827 0828 0829 TZR 0825 0826 0827 0828 0829 MIN 71 72 74 73 74 MIN 55 58 64 64 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 1 2 5 1 1 %>80 0 0 0 0 0 %>75 13 24 35 25 32 %>75 0 0 0 0 0 %>70 61 72 81 84 90 %>70 0 0 0 2 4 DAYTON_OH DETROIT_MI MGY 0825 0826 0827 0828 0829 DET 0825 0826 0827 0828 0829 MIN 56 59 65 64 64 MIN 58 64 68 66 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 0 %>75 0 0 1 1 1 %>70 0 0 2 3 6 %>70 0 5 19 9 10 EVANSVILLE_IN GRAND_RAPIDS_MI EVV 0825 0826 0827 0828 0829 GRR 0825 0826 0827 0828 0829 MIN 62 65 68 67 67 MIN 52 60 64 60 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 1 1 4 %>75 0 0 0 0 0 %>70 1 10 28 21 28 %>70 0 0 0 0 2 GREENSBORO_NC HUNTSVILLE_AL GSO 0825 0826 0827 0828 0829 HSV 0825 0826 0827 0828 0829 MIN 62 65 69 69 69 MIN 69 71 72 71 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 0 %>80 0 0 0 0 0 %>80 1 1 1 0 0 %>75 0 1 6 4 5 %>75 8 14 19 8 12 %>70 1 15 42 38 42 %>70 40 58 76 66 62 INDIANAPOLIS_IN KNOXVILLE_TN IND 0825 0826 0827 0828 0829 TYS 0825 0826 0827 0828 0829 MIN 58 61 65 64 64 MIN 63 66 70 69 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 0 %>75 0 1 4 1 3 %>70 0 0 2 3 6 %>70 4 14 44 3432 LEXINGTON_KY LOUISVILLE_KY LEX 0825 0826 0827 0828 0829 SDF 0825 0826 0827 0828 0829 MIN 59 62 67 67 67 MIN 61 64 68 68 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 1 1 2 %>75 0 0 2 1 5 %>70 0 1 18 19 20 %>70 0 4 30 28 33 MEMPHIS_TN MIAMI_FL MEM 0825 0826 0827 0828 0829 MIA 0825 0826 0827 0828 0829 MIN 73 75 73 73 73 MIN 87 88 88 88 90 %>100 0 0 0 0 0 %>100 1 3 3 3 4 %>95 0 0 0 0 0 %>95 9 15 15 15 19 %>90 0 0 0 0 0 %>90 34 38 40 42 51 %>85 0 2 0 0 1 %>85 59 68 71 71 82 %>80 6 14 5 4 8 %>80 83 89 92 91 95 %>75 36 48 32 32 37 %>75 96 98 98 98 98 %>70 79 83 76 78 75 %>70 99 100 100 100 100 MILWAUKEE_WI MOBILE_AL MKE 0825 0826 0827 0828 0829 MOB 0825 0826 0827 0828 0829 MIN 61 66 66 65 65 MIN 77 77 75 75 75 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 1 2 1 1 0 %>90 0 0 0 0 0 %>90 4 6 5 3 2 %>85 0 0 0 0 0 %>85 12 16 13 9 9 %>80 0 0 0 0 1 %>80 31 34 29 25 24 %>75 0 2 2 2 4 %>75 59 58 52 48 49 %>70 3 12 11 12 18 %>70 83 80 73 73 74 NASHVILLE_TN NEW_YORK_CITY_NY BNA 0825 0826 0827 0828 0829 NYC 0825 0826 0827 0828 0829 MIN 65 68 70 70 70 MIN 63 65 69 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 0 0 0 0 %>80 0 0 0 0 0 %>75 1 6 9 7 8 %>75 0 0 4 9 6 %>70 13 32 56 52 49 %>70 2 8 41 58 52 NORFOLK_VA ORLANDO_FL ORF 0825 0826 0827 0828 0829 ORL 0825 0826 0827 0828 0829 MIN 72 74 75 75 76 MIN 78 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 3 4 4 4 6 %>80 1 4 9 8 10 %>80 31 31 31 31 34 %>75 22 40 56 54 61 %>75 84 80 80 77 78 %>70 70 81 91 91 94 %>70 99 98 98 97 97 PHILADELPHIA_PA PITTSBURGH_PA PHL 0825 0826 0827 0828 0829 PIT 0825 0826 0827 0828 0829 MIN 62 64 69 70 70 MIN 55 57 62 64 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 1 2 4 %>75 0 0 0 0 0 %>70 0 1 31 48 46 %>70 0 0 0 0 3 PORTLAND_ME PROVIDENCE_RI PWM 0825 0826 0827 0828 0829 PVD 0825 0826 0827 0828 0829MIN 58 58 60 63 62 MIN 59 60 64 66 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 0 0 %>75 0 0 0 0 0 %>75 0 0 0 0 1 %>70 1 0 0 4 5 %>70 2 0 1 12 15 RALEIGH-DURHAM_NC RICHMOND_VA RDU 0825 0826 0827 0828 0829 RIC 0825 0826 0827 0828 0829 MIN 65 68 71 72 72 MIN 62 66 70 71 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 0 %>80 0 0 1 0 0 %>80 0 0 0 0 0 %>75 0 5 16 14 17 %>75 0 1 6 10 11 %>70 7 34 66 68 75 %>70 2 12 52 58 64 SAVANNAH_GA TALLAHASSEE_FL SAV 0825 0826 0827 0828 0829 TLH 0825 0826 0827 0828 0829 MIN 76 76 76 76 76 MIN 76 76 75 75 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 2 1 2 4 3 %>85 2 1 1 2 2 %>80 17 12 15 19 19 %>80 16 11 10 14 15 %>75 60 55 59 55 58 %>75 65 57 56 55 56 %>70 94 94 94 89 91 %>70 94 94 93 90 90 TAMPA_FL WASHINGTON_DC TPA 0825 0826 0827 0828 0829 DCA 0825 0826 0827 0828 0829 MIN 81 80 80 80 80 MIN 62 66 71 71 71 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 1 1 %>95 0 0 0 0 0 %>90 5 3 4 6 4 %>90 0 0 0 0 0 %>85 27 20 22 23 20 %>85 0 0 0 0 0 %>80 61 54 54 53 50 %>80 0 0 0 0 0 %>75 86 84 83 81 80 %>75 0 0 4 6 9 %>70 97 97 96 95 96 %>70 1 5 66 64 68 URL IS WWW.WPC.NCEP.NOAA.GOV $$