Heat Index Forecast Tables
Issued by NWS
Issued by NWS
351
FMUS23 KWNH 210745
PRBEHL
DAYS 3--7 HEAT INDEX FORECAST TABLES
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
0742 UTC FRI AUG 21 2026
MINIMUM HEAT INDEX (DEG F) AND MINIMUM HI PROB (%) FRCSTS
AT EASTERN US CITIES - DAYS 3 TO 7 FROM FRI AUG 21 2026
AKRON-CANTON_OH ALBANY_NY
CAK 0824 0825 0826 0827 0828 ALB 0824 0825 0826 0827 0828
MIN 55 54 57 62 63 MIN 57 54 55 60 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 0 %>75 0 0 0 0 0
%>70 0 0 0 2 3 %>70 0 0 0 1 2
ASHEVILLE_NC ATLANTA_GA
AVL 0824 0825 0826 0827 0828 ATL 0824 0825 0826 0827 0828
MIN 57 58 61 63 62 MIN 69 68 71 72 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 0 0 1 1 0
%>75 0 0 0 1 0 %>75 5 5 13 17 12
%>70 0 1 3 7 5 %>70 37 34 58 70 64
BALTIMORE_MD BIRMINGHAM_AL
BWI 0824 0825 0826 0827 0828 BHM 0824 0825 0826 0827 0828
MIN 66 64 68 71 71 MIN 69 69 72 72 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 3 5 3
%>75 1 1 4 13 13 %>75 7 8 23 26 20
%>70 10 9 29 65 66 %>70 37 41 65 67 60
BOSTON_MA BUFFALO_NY
BOS 0824 0825 0826 0827 0828 BUF 0824 0825 0826 0827 0828
MIN 66 60 61 64 66 MIN 55 55 58 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 2 0 0 0 1 %>75 0 0 0 0 0
%>70 19 1 0 8 19 %>70 0 0 0 4 4
CHARLESTON_SC CHARLESTON_WV
CHS 0824 0825 0826 0827 0828 CRW 0824 0825 0826 0827 0828
MIN 76 76 76 77 77 MIN 59 57 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 2 1 2 2 %>90 0 0 0 0 0
%>85 4 9 7 10 10 %>85 0 0 0 0 0
%>80 19 26 25 30 30 %>80 0 0 0 0 0
%>75 54 52 56 59 60 %>75 0 0 0 1 1
%>70 87 78 84 85 85 %>70 0 0 3 21 17
CHARLOTTE_NC CHICAGO_IL
CLT 0824 0825 0826 0827 0828 ORD 0824 0825 0826 0827 0828
MIN 65 65 68 70 70 MIN 60 62 66 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 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 1 1 %>80 0 0 0 0 0
%>75 0 1 7 12 11 %>75 0 0 1 1 2
%>70 6 13 34 49 48 %>70 1 2 12 10 15
CINCINNATI_OH CLEVELAND_OH
LUK 0824 0825 0826 0827 0828 CLE 0824 0825 0826 0827 0828
MIN 58 58 62 66 66 MIN 58 58 60 64 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 1 2 %>75 0 0 1 1 2
%>70 0 0 4 14 16 %>70 0 1 4 11 15
COLUMBIA_SC COLUMBUS_OH
CAE 0824 0825 0826 0827 0828 TZR 0824 0825 0826 0827 0828
MIN 70 69 72 73 73 MIN 56 56 59 64 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 1 4 4 3 %>80 0 0 0 0 0
%>75 4 12 23 29 28 %>75 0 0 0 0 1
%>70 50 46 63 75 77 %>70 0 0 1 6 9
DAYTON_OH DETROIT_MI
MGY 0824 0825 0826 0827 0828 DET 0824 0825 0826 0827 0828
MIN 56 57 61 65 65 MIN 57 59 64 66 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 1 %>75 0 0 0 1 1
%>70 0 0 2 8 11 %>70 0 1 7 12 12
EVANSVILLE_IN GRAND_RAPIDS_MI
EVV 0824 0825 0826 0827 0828 GRR 0824 0825 0826 0827 0828
MIN 62 63 67 68 67 MIN 51 53 61 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 0 %>80 0 0 0 0 0
%>75 0 0 4 4 6 %>75 0 0 0 0 0
%>70 1 3 25 30 30 %>70 0 0 3 2 2
GREENSBORO_NC HUNTSVILLE_AL
GSO 0824 0825 0826 0827 0828 HSV 0824 0825 0826 0827 0828
MIN 62 62 66 68 68 MIN 67 67 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 0 0 0 0 %>80 0 0 1 1 0
%>75 0 0 3 7 5 %>75 0 2 13 12 9
%>70 1 4 21 36 34 %>70 14 25 56 60 49
INDIANAPOLIS_IN KNOXVILLE_TN
IND 0824 0825 0826 0827 0828 TYS 0824 0825 0826 0827 0828
MIN 57 58 62 65 64 MIN 63 62 66 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 1 %>75 0 0 1 2 1
%>70 0 0 5 9 10 %>70 1 2 17 39 27
LEXINGTON_KY LOUISVILLE_KY
LEX 0824 0825 0826 0827 0828 SDF 0824 0825 0826 0827 0828
MIN 59 59 64 67 67 MIN 61 61 66 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 2 2 %>75 0 0 2 4 5
%>70 0 0 10 23 20 %>70 0 1 16 33 32
MEMPHIS_TN MIAMI_FL
MEM 0824 0825 0826 0827 0828 MIA 0824 0825 0826 0827 0828
MIN 71 72 74 73 72 MIN 85 84 85 84 85
%>100 0 0 0 0 0 %>100 1 1 1 1 1
%>95 0 0 0 0 0 %>95 6 7 8 7 9
%>90 0 0 0 0 0 %>90 26 26 28 29 33
%>85 0 1 2 1 1 %>85 53 51 52 53 55
%>80 2 7 15 7 8 %>80 76 69 71 70 72
%>75 19 31 46 33 30 %>75 92 84 86 84 87
%>70 64 69 80 72 65 %>70 99 95 96 94 96
MILWAUKEE_WI MOBILE_AL
MKE 0824 0825 0826 0827 0828 MOB 0824 0825 0826 0827 0828
MIN 59 62 66 65 64 MIN 77 75 76 75 75
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 0 0 %>95 1 1 1 1 1
%>90 0 0 0 0 0 %>90 4 3 3 3 3
%>85 0 0 0 0 0 %>85 12 10 10 11 10
%>80 0 0 0 0 0 %>80 31 26 27 27 26
%>75 0 0 1 1 2 %>75 59 52 53 52 50
%>70 1 4 16 9 13 %>70 84 77 78 76 74
NASHVILLE_TN NEW_YORK_CITY_NY
BNA 0824 0825 0826 0827 0828 NYC 0824 0825 0826 0827 0828
MIN 65 65 69 70 69 MIN 66 63 65 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 1 0 0 %>80 0 0 0 0 0
%>75 0 1 9 8 8 %>75 0 0 1 8 9
%>70 7 13 42 49 41 %>70 14 5 13 45 51
NORFOLK_VA ORLANDO_FL
ORF 0824 0825 0826 0827 0828 ORL 0824 0825 0826 0827 0828
MIN 72 72 74 75 75 MIN 77 77 77 77 77
%>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 4 4 3 3 5
%>80 1 2 5 9 9 %>80 28 25 23 23 27
%>75 23 27 43 57 57 %>75 72 67 66 67 69
%>70 71 71 82 91 93 %>70 96 94 94 94 94
PHILADELPHIA_PA PITTSBURGH_PA
PHL 0824 0825 0826 0827 0828 PIT 0824 0825 0826 0827 0828
MIN 64 62 64 69 70 MIN 56 55 58 63 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 3 4 %>75 0 0 0 0 0
%>70 2 1 5 37 46 %>70 0 0 0 2 5
PORTLAND_ME PROVIDENCE_RI
PWM 0824 0825 0826 0827 0828 PVD 0824 0825 0826 0827 0828
MIN 63 57 58 60 62 MIN 65 59 60 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 0 0
%>75 1 0 0 0 1 %>75 3 0 0 1 3
%>70 9 2 0 2 6 %>70 18 1 1 11 20
RALEIGH-DURHAM_NC RICHMOND_VA
RDU 0824 0825 0826 0827 0828 RIC 0824 0825 0826 0827 0828
MIN 66 65 69 71 71 MIN 64 64 68 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 1 1 %>80 0 0 0 0 0
%>75 0 2 8 16 16 %>75 0 0 3 11 11
%>70 10 15 39 58 61 %>70 5 5 27 56 61
SAVANNAH_GA TALLAHASSEE_FL
SAV 0824 0825 0826 0827 0828 TLH 0824 0825 0826 0827 0828
MIN 75 75 75 75 76 MIN 75 74 74 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 1 1 %>90 0 0 0 0 0
%>85 1 4 2 4 5 %>85 2 1 1 2 3
%>80 9 17 15 20 21 %>80 16 11 8 15 17
%>75 45 49 48 52 54 %>75 54 45 45 48 49
%>70 89 83 84 83 84 %>70 88 84 87 82 82
TAMPA_FL WASHINGTON_DC
TPA 0824 0825 0826 0827 0828 DCA 0824 0825 0826 0827 0828
MIN 80 78 78 78 79 MIN 65 64 67 71 71
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 1 1 0 1 1 %>95 0 0 0 0 0
%>90 6 4 3 4 5 %>90 0 0 0 0 0
%>85 24 16 12 14 18 %>85 0 0 0 0 0
%>80 54 40 36 37 42 %>80 0 0 0 0 0
%>75 80 69 68 67 69 %>75 0 0 1 8 10
%>70 94 89 90 89 89 %>70 4 4 22 61 65
URL IS WWW.WPC.NCEP.NOAA.GOV
$$