Heat Index Forecast Tables
Issued by NWS
Issued by NWS
693
FMUS23 KWNH 150654
PRBEHI
DAYS 3--7 HEAT INDEX FORECAST TABLES
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
0652 UTC TUE SEP 15 2026
MEAN HEAT INDEX (DEG F) AND MEAN HI PROB (%) FRCSTS
AT EASTERN US CITIES - DAYS 3 TO 7 FROM TUE SEP 15 2026
AKRON-CANTON_OH ALBANY_NY
CAK 0918 0919 0920 0921 0922 ALB 0918 0919 0920 0921 0922
MEAN 72 72 73 66 63 MEAN 67 57 63 60 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 1 2 3 1 0 %>85 0 0 0 0 0
%>80 7 11 13 3 1 %>80 0 0 1 0 0
%>75 30 31 37 12 5 %>75 4 0 5 2 1
%>70 68 60 68 31 17 %>70 28 1 17 7 4
ASHEVILLE_NC ATLANTA_GA
AVL 0918 0919 0920 0921 0922 ATL 0918 0919 0920 0921 0922
MEAN 75 74 74 72 67 MEAN 82 83 84 83 79
%>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 2 3 6 4 2
%>85 1 0 0 0 0 %>85 25 31 39 30 14
%>80 10 6 7 5 2 %>80 74 81 84 75 42
%>75 49 37 38 27 10 %>75 98 99 99 97 76
%>70 88 81 83 68 30 %>70 100 100 100 100 95
BALTIMORE_MD BIRMINGHAM_AL
BWI 0918 0919 0920 0921 0922 BHM 0918 0919 0920 0921 0922
MEAN 79 73 79 75 68 MEAN 85 85 85 84 80
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 0 0 %>95 0 1 1 1 1
%>90 0 0 3 2 0 %>90 8 10 13 9 6
%>85 6 1 16 9 2 %>85 53 51 54 39 22
%>80 39 10 45 24 8 %>80 94 90 91 77 53
%>75 83 37 77 48 21 %>75 100 99 99 96 82
%>70 99 73 94 73 42 %>70 100 100 100 100 96
BOSTON_MA BUFFALO_NY
BOS 0918 0919 0920 0921 0922 BUF 0918 0919 0920 0921 0922
MEAN 70 59 64 62 60 MEAN 65 62 65 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 1 0 0 %>80 0 0 1 0 0
%>75 9 0 6 2 1 %>75 1 2 5 2 1
%>70 52 0 19 11 4 %>70 12 9 21 7 4
CHARLESTON_SC CHARLESTON_WV
CHS 0918 0919 0920 0921 0922 CRW 0918 0919 0920 0921 0922
MEAN 83 85 85 86 83 MEAN 81 81 81 74 70
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 1 1 1 %>95 0 0 0 0 0
%>90 2 9 11 14 7 %>90 3 4 3 2 1
%>85 28 49 55 56 32 %>85 19 21 21 7 3
%>80 84 90 93 92 70 %>80 55 56 62 22 9
%>75 100 100 100 100 94 %>75 87 87 92 46 25
%>70 100 100 100 100 99 %>70 99 98 99 72 48
CHARLOTTE_NC CHICAGO_IL
CLT 0918 0919 0920 0921 0922 ORD 0918 0919 0920 0921 0922
MEAN 81 82 83 82 75 MEAN 70 74 68 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 3 5 3 2 %>90 0 1 0 0 0
%>85 13 24 33 26 8 %>85 0 4 0 0 0
%>80 63 69 79 71 24 %>80 2 18 2 0 0
%>75 96 96 98 96 49 %>75 14 46 13 3 2
%>70 100 100 100 100 74 %>70 51 76 38 14 12
CINCINNATI_OH CLEVELAND_OH
LUK 0918 0919 0920 0921 0922 CLE 0918 0919 0920 0921 0922
MEAN 81 80 81 71 68 MEAN 71 72 72 66 64
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 1 1 0 0 %>95 0 0 0 0 0
%>90 4 7 5 1 0 %>90 0 0 0 0 0
%>85 22 24 22 4 1 %>85 0 2 1 0 0
%>80 58 51 54 14 6 %>80 1 10 8 2 1
%>75 88 78 84 33 18 %>75 13 30 30 8 4
%>70 98 94 97 57 39 %>70 56 59 64 27 17
COLUMBIA_SC COLUMBUS_OH
CAE 0918 0919 0920 0921 0922 TZR 0918 0919 0920 0921 0922
MEAN 81 85 85 85 80 MEAN 77 77 78 70 67
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 1 2 1 %>95 0 1 0 0 0
%>90 0 9 13 15 6 %>90 1 3 3 0 0
%>85 12 49 53 53 21 %>85 9 12 14 2 1
%>80 67 91 91 88 50 %>80 32 32 38 9 4
%>75 98 100 100 99 78 %>75 66 59 68 25 14
%>70 100 100 100 100 94 %>70 90 82 89 49 33
DAYTON_OH DETROIT_MI
MGY 0918 0919 0920 0921 0922 DET 0918 0919 0920 0921 0922
MEAN 79 78 79 70 67 MEAN 67 69 68 63 62
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 1 0 0 0 %>95 0 0 0 0 0
%>90 3 5 4 0 0 %>90 0 0 0 0 0
%>85 14 18 17 3 1 %>85 0 0 0 0 0
%>80 43 41 44 10 5 %>80 0 4 3 0 0
%>75 76 69 75 26 15 %>75 3 16 13 3 2
%>70 94 88 93 51 34 %>70 25 41 39 13 11
EVANSVILLE_IN GRAND_RAPIDS_MI
EVV 0918 0919 0920 0921 0922 GRR 0918 0919 0920 0921 0922
MEAN 88 86 83 75 71 MEAN 64 66 65 59 58
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 4 1 1 1 0 %>95 0 0 0 0 0
%>90 30 15 8 3 1 %>90 0 0 0 0 0
%>85 77 56 34 10 3 %>85 0 0 0 0 0
%>80 98 91 71 25 11 %>80 0 2 1 0 0
%>75 100 99 94 48 28 %>75 1 10 5 1 1
%>70 100 100 99 72 54 %>70 10 28 20 5 4
GREENSBORO_NC HUNTSVILLE_AL
GSO 0918 0919 0920 0921 0922 HSV 0918 0919 0920 0921 0922
MEAN 81 79 81 80 72 MEAN 87 85 85 82 78
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 0 0 %>95 1 1 1 1 0
%>90 0 1 1 2 1 %>90 18 11 13 6 2
%>85 11 12 17 15 5 %>85 66 52 50 29 12
%>80 59 44 61 47 15 %>80 96 91 87 66 36
%>75 95 81 94 81 34 %>75 100 100 99 91 68
%>70 100 97 100 97 58 %>70 100 100 100 99 90
INDIANAPOLIS_IN KNOXVILLE_TN
IND 0918 0919 0920 0921 0922 TYS 0918 0919 0920 0921 0922
MEAN 80 80 78 69 66 MEAN 85 83 83 81 76
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 1 0 0 0 %>95 1 0 1 1 0
%>90 3 6 2 0 0 %>90 10 5 8 5 2
%>85 18 22 11 2 1 %>85 45 34 35 22 9
%>80 49 50 35 7 4 %>80 86 79 74 54 28
%>75 82 79 67 21 13 %>75 99 98 96 84 56
%>70 97 94 89 44 32 %>70 100 100 100 97 82
LEXINGTON_KY LOUISVILLE_KY
LEX 0918 0919 0920 0921 0922 SDF 0918 0919 0920 0921 0922
MEAN 84 82 82 74 69 MEAN 86 84 83 74 70
%>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 8 5 4 2 0 %>90 20 11 7 2 0
%>85 41 26 27 8 2 %>85 63 40 34 8 3
%>80 84 64 69 22 8 %>80 93 77 74 22 9
%>75 99 91 94 44 21 %>75 100 96 95 44 25
%>70 100 99 100 68 43 %>70 100 100 100 68 48
MEMPHIS_TN MIAMI_FL
MEM 0918 0919 0920 0921 0922 MIA 0918 0919 0920 0921 0922
MEAN 89 88 87 82 77 MEAN 90 90 90 90 90
%>100 0 0 0 0 0 %>100 4 4 4 3 4
%>95 3 2 3 2 0 %>95 17 17 17 16 18
%>90 41 31 26 10 3 %>90 47 49 49 48 52
%>85 93 84 72 31 13 %>85 81 82 83 82 85
%>80 100 99 96 61 35 %>80 97 97 98 97 98
%>75 100 100 100 85 65 %>75 100 100 100 100 100
%>70 100 100 100 97 87 %>70 100 100 100 100 100
MILWAUKEE_WI MOBILE_AL
MKE 0918 0919 0920 0921 0922 MOB 0918 0919 0920 0921 0922
MEAN 66 69 64 61 61 MEAN 84 86 87 87 85
%>100 0 0 0 0 0 %>100 0 0 1 0 0
%>95 0 0 0 0 0 %>95 0 3 6 5 4
%>90 0 0 0 0 0 %>90 5 21 29 26 19
%>85 0 0 0 0 0 %>85 37 63 67 63 51
%>80 0 2 0 0 0 %>80 85 93 93 91 83
%>75 1 13 1 0 0 %>75 99 100 99 99 97
%>70 13 45 11 4 4 %>70 100 100 100 100 100
NASHVILLE_TN NEW_YORK_CITY_NY
BNA 0918 0919 0920 0921 0922 NYC 0918 0919 0920 0921 0922
MEAN 89 87 87 81 76 MEAN 76 67 73 69 65
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 5 1 3 1 0 %>95 0 0 0 0 0
%>90 43 21 23 8 2 %>90 0 0 1 0 0
%>85 90 73 65 26 10 %>85 0 0 3 1 0
%>80 100 98 94 56 28 %>80 8 0 14 6 1
%>75 100 100 100 82 55 %>75 57 4 36 20 7
%>70 100 100 100 96 80 %>70 96 24 65 46 23
NORFOLK_VA ORLANDO_FL
ORF 0918 0919 0920 0921 0922 ORL 0918 0919 0920 0921 0922
MEAN 80 80 83 82 78 MEAN 85 86 87 87 88
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 1 0 %>95 0 1 2 2 4
%>90 0 1 6 6 1 %>90 8 17 22 23 28
%>85 6 10 35 29 9 %>85 52 60 67 69 73
%>80 54 52 78 68 33 %>80 93 93 95 96 96
%>75 96 92 97 93 67 %>75 100 100 100 100 100
%>70 100 100 100 99 91 %>70 100 100 100 100 100
PHILADELPHIA_PA PITTSBURGH_PA
PHL 0918 0919 0920 0921 0922 PIT 0918 0919 0920 0921 0922
MEAN 77 70 76 72 67 MEAN 74 72 74 68 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 3 1 0 %>90 0 0 0 0 0
%>85 1 0 11 5 1 %>85 1 2 3 1 0
%>80 18 3 29 16 6 %>80 9 11 16 5 2
%>75 69 18 56 35 16 %>75 38 32 45 16 7
%>70 97 51 80 59 35 %>70 76 62 77 38 20
PORTLAND_ME PROVIDENCE_RI
PWM 0918 0919 0920 0921 0922 PVD 0918 0919 0920 0921 0922
MEAN 65 55 59 58 56 MEAN 71 60 65 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 1 0 2 1 0
%>75 0 0 0 0 0 %>75 15 0 8 5 1
%>70 9 0 2 1 0 %>70 63 1 24 18 8
RALEIGH-DURHAM_NC RICHMOND_VA
RDU 0918 0919 0920 0921 0922 RIC 0918 0919 0920 0921 0922
MEAN 80 82 83 82 75 MEAN 81 79 83 80 72
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 1 1 %>95 0 0 1 2 0
%>90 0 3 5 6 3 %>90 2 2 7 8 2
%>85 7 22 33 31 11 %>85 20 13 31 23 7
%>80 54 65 79 69 28 %>80 64 41 69 48 19
%>75 96 94 98 93 53 %>75 94 76 93 74 38
%>70 100 100 100 99 76 %>70 100 95 99 91 60
SAVANNAH_GA TALLAHASSEE_FL
SAV 0918 0919 0920 0921 0922 TLH 0918 0919 0920 0921 0922
MEAN 83 85 85 85 84 MEAN 83 85 84 85 85
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 1 1 1 %>95 0 0 1 1 1
%>90 3 7 12 15 9 %>90 3 8 9 11 12
%>85 30 45 50 54 39 %>85 31 47 45 49 51
%>80 80 89 88 90 78 %>80 82 89 86 88 88
%>75 99 100 99 99 97 %>75 99 99 99 99 99
%>70 100 100 100 100 100 %>70 100 100 100 100 100
TAMPA_FL WASHINGTON_DC
TPA 0918 0919 0920 0921 0922 DCA 0918 0919 0920 0921 0922
MEAN 86 87 87 87 88 MEAN 80 75 80 76 69
%>100 0 0 0 0 1 %>100 0 0 0 0 0
%>95 2 4 5 5 7 %>95 0 0 0 1 0
%>90 19 23 26 27 34 %>90 1 0 4 4 1
%>85 61 63 66 67 74 %>85 11 4 19 13 4
%>80 92 92 93 93 96 %>80 47 18 50 30 11
%>75 99 99 99 99 100 %>75 85 50 82 54 25
%>70 100 100 100 100 100 %>70 99 81 96 77 45
URL IS WWW.WPC.NCEP.NOAA.GOV
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