Heat Index Forecast Tables
Issued by NWS
Issued by NWS
532
FMUS23 KWNH 181816
PRBEHH
DAYS 3--7 HEAT INDEX FORECAST TABLES
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1730 UTC FRI SEP 18 2026
MAXIMUM HEAT INDEX (DEG F) AND MAXIMUM HI PROB (%) FRCSTS
AT EASTERN US CITIES - DAYS 3 TO 7 FROM FRI SEP 18 2026
AKRON-CANTON_OH ALBANY_NY
CAK 0921 0922 0923 0924 0925 ALB 0921 0922 0923 0924 0925
MAX 67 65 65 67 69 MAX 62 59 61 62 66
%>110 0 0 0 0 0 %>110 0 0 0 0 0
%>105 0 0 0 0 0 %>105 0 0 0 0 0
%>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 2 %>80 0 0 0 0 2
ASHEVILLE_NC ATLANTA_GA
AVL 0921 0922 0923 0924 0925 ATL 0921 0922 0923 0924 0925
MAX 85 78 70 72 71 MAX 98 96 89 85 84
%>110 0 0 0 0 0 %>110 2 5 3 0 0
%>105 0 0 0 0 0 %>105 10 14 8 1 0
%>100 1 1 0 0 0 %>100 33 31 16 4 1
%>95 3 2 0 0 0 %>95 67 53 30 12 5
%>90 13 6 0 0 0 %>90 90 75 48 29 19
%>85 51 17 2 2 1 %>85 99 89 65 52 43
%>80 88 39 7 10 6 %>80 100 97 80 75 71
BALTIMORE_MD BIRMINGHAM_AL
BWI 0921 0922 0923 0924 0925 BHM 0921 0922 0923 0924 0925
MAX 76 69 65 69 72 MAX 102 101 93 87 85
%>110 0 0 0 0 0 %>110 11 13 2 0 0
%>105 0 0 0 0 0 %>105 31 31 7 0 0
%>100 0 0 0 0 0 %>100 61 55 20 2 1
%>95 1 0 0 0 0 %>95 85 77 42 10 4
%>90 4 0 0 0 0 %>90 97 92 66 32 19
%>85 13 0 0 0 3 %>85 100 98 85 63 48
%>80 32 3 0 3 12 %>80 100 100 95 87 79
BOSTON_MA BUFFALO_NY
BOS 0921 0922 0923 0924 0925 BUF 0921 0922 0923 0924 0925
MAX 63 59 60 61 64 MAX 61 59 62 65 67
%>110 0 0 0 0 0 %>110 0 0 0 0 0
%>105 0 0 0 0 0 %>105 0 0 0 0 0
%>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 2
CHARLESTON_SC CHARLESTON_WV
CHS 0921 0922 0923 0924 0925 CRW 0921 0922 0923 0924 0925
MAX 97 96 93 90 86 MAX 84 78 74 72 72
%>110 6 9 6 1 0 %>110 0 0 0 0 0
%>105 16 20 13 5 1 %>105 1 0 0 0 0
%>100 36 35 25 12 3 %>100 4 0 0 0 0
%>95 61 54 41 27 11 %>95 12 1 0 0 0
%>90 82 73 60 48 29 %>90 26 6 1 0 0
%>85 94 87 76 69 55 %>85 46 18 5 1 1
%>80 99 95 88 86 79 %>80 67 39 18 8 8
CHARLOTTE_NC CHICAGO_IL
CLT 0921 0922 0923 0924 0925 ORD 0921 0922 0923 0924 0925
MAX 98 90 76 80 79 MAX 62 61 63 66 69
%>110 5 6 0 0 0 %>110 0 0 0 0 0
%>105 16 12 0 0 0 %>105 0 0 0 0 0
%>100 38 22 0 1 0 %>100 0 0 0 0 0
%>95 65 35 1 4 1 %>95 0 0 0 0 0
%>90 86 51 4 11 5 %>90 0 0 0 0 0
%>85 96 66 14 26 17 %>85 0 0 0 0 0
%>80 99 79 31 48 41 %>80 0 0 0 0 2
CINCINNATI_OH CLEVELAND_OH
LUK 0921 0922 0923 0924 0925 CLE 0921 0922 0923 0924 0925
MAX 80 74 72 71 73 MAX 65 64 66 66 68
%>110 0 0 0 0 0 %>110 0 0 0 0 0
%>105 1 0 0 0 0 %>105 0 0 0 0 0
%>100 2 0 0 0 0 %>100 0 0 0 0 0
%>95 6 0 0 0 0 %>95 0 0 0 0 0
%>90 15 1 0 0 0 %>90 0 0 0 0 0
%>85 29 4 2 0 2 %>85 0 0 0 0 0
%>80 49 17 9 5 11 %>80 0 0 1 0 2
COLUMBIA_SC COLUMBUS_OH
CAE 0921 0922 0923 0924 0925 TZR 0921 0922 0923 0924 0925
MAX 100 97 86 87 84 MAX 73 71 70 69 71
%>110 7 11 1 1 0 %>110 0 0 0 0 0
%>105 21 23 2 3 0 %>105 0 0 0 0 0
%>100 47 38 7 8 1 %>100 0 0 0 0 0
%>95 75 56 16 19 6 %>95 0 0 0 0 0
%>90 92 73 32 37 20 %>90 1 0 0 0 0
%>85 98 86 52 58 45 %>85 4 2 1 0 1
%>80 100 94 72 77 72 %>80 15 8 5 2 7
DAYTON_OH DETROIT_MI
MGY 0921 0922 0923 0924 0925 DET 0921 0922 0923 0924 0925
MAX 75 72 70 70 72 MAX 62 61 63 66 69
%>110 0 0 0 0 0 %>110 0 0 0 0 0
%>105 0 0 0 0 0 %>105 0 0 0 0 0
%>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 3 0 0 0 0 %>90 0 0 0 0 0
%>85 11 1 1 0 1 %>85 0 0 0 0 1
%>80 27 7 5 2 8 %>80 0 0 0 0 4
EVANSVILLE_IN GRAND_RAPIDS_MI
EVV 0921 0922 0923 0924 0925 GRR 0921 0922 0923 0924 0925
MAX 93 79 76 77 78 MAX 60 60 63 67 70
%>110 5 0 0 0 0 %>110 0 0 0 0 0
%>105 12 0 0 0 0 %>105 0 0 0 0 0
%>100 24 0 0 0 0 %>100 0 0 0 0 0
%>95 41 1 0 0 1 %>95 0 0 0 0 0
%>90 61 6 1 2 4 %>90 0 0 0 0 0
%>85 78 19 6 9 15 %>85 0 0 0 0 0
%>80 89 43 23 29 40 %>80 0 0 0 0 4
GREENSBORO_NC HUNTSVILLE_AL
GSO 0921 0922 0923 0924 0925 HSV 0921 0922 0923 0924 0925
MAX 93 83 71 75 76 MAX 102 99 90 85 83
%>110 1 1 0 0 0 %>110 12 11 1 0 0
%>105 4 2 0 0 0 %>105 32 26 4 0 0
%>100 16 6 0 0 0 %>100 58 47 11 1 1
%>95 39 13 0 1 0 %>95 82 70 26 6 4
%>90 68 26 0 3 1 %>90 95 87 49 21 17
%>85 88 43 2 11 8 %>85 99 95 71 47 41
%>80 97 62 10 28 25 %>80 100 99 88 75 70
INDIANAPOLIS_IN KNOXVILLE_TN
IND 0921 0922 0923 0924 0925 TYS 0921 0922 0923 0924 0925
MAX 75 70 69 71 73 MAX 96 93 85 82 79
%>110 0 0 0 0 0 %>110 4 7 0 0 0
%>105 0 0 0 0 0 %>105 13 15 2 0 0
%>100 0 0 0 0 0 %>100 32 27 6 2 0
%>95 1 0 0 0 0 %>95 56 44 14 6 2
%>90 4 0 0 0 0 %>90 79 61 29 16 7
%>85 11 0 0 1 3 %>85 93 77 49 34 21
%>80 27 3 2 5 14 %>80 99 88 70 57 45
LEXINGTON_KY LOUISVILLE_KY
LEX 0921 0922 0923 0924 0925 SDF 0921 0922 0923 0924 0925
MAX 90 79 74 73 74 MAX 91 78 75 74 76
%>110 3 0 0 0 0 %>110 5 0 0 0 0
%>105 7 0 0 0 0 %>105 11 0 0 0 0
%>100 17 0 0 0 0 %>100 21 0 0 0 0
%>95 32 2 0 0 0 %>95 36 1 0 0 0
%>90 50 7 0 0 0 %>90 54 6 1 0 1
%>85 69 20 3 2 3 %>85 71 18 6 4 7
%>80 84 43 15 11 14 %>80 84 40 21 17 25
MEMPHIS_TN MIAMI_FL
MEM 0921 0922 0923 0924 0925 MIA 0921 0922 0923 0924 0925
MAX 104 95 87 86 85 MAX 99 100 100 100 100
%>110 22 2 0 0 0 %>110 9 15 12 13 10
%>105 44 9 1 0 0 %>105 23 30 27 28 26
%>100 69 25 4 1 1 %>100 44 51 48 48 49
%>95 87 49 14 8 5 %>95 66 71 70 69 72
%>90 96 74 34 25 21 %>90 84 86 86 86 89
%>85 99 90 62 53 50 %>85 94 95 95 95 97
%>80 100 97 84 80 79 %>80 98 98 99 98 99
MILWAUKEE_WI MOBILE_AL
MKE 0921 0922 0923 0924 0925 MOB 0921 0922 0923 0924 0925
MAX 61 60 62 65 67 MAX 104 105 103 95 90
%>110 0 0 0 0 0 %>110 25 28 19 1 0
%>105 0 0 0 0 0 %>105 48 49 39 6 1
%>100 0 0 0 0 0 %>100 71 71 63 21 6
%>95 0 0 0 0 0 %>95 87 87 83 49 22
%>90 0 0 0 0 0 %>90 96 96 94 78 52
%>85 0 0 0 0 0 %>85 99 99 98 94 81
%>80 0 0 0 0 0 %>80 100 100 100 99 96
NASHVILLE_TN NEW_YORK_CITY_NY
BNA 0921 0922 0923 0924 0925 NYC 0921 0922 0923 0924 0925
MAX 103 95 85 83 82 MAX 67 62 63 65 68
%>110 22 7 0 0 0 %>110 0 0 0 0 0
%>105 40 16 1 0 0 %>105 0 0 0 0 0
%>100 61 30 4 1 1 %>100 0 0 0 0 0
%>95 79 48 12 5 5 %>95 0 0 0 0 0
%>90 91 67 28 17 15 %>90 0 0 0 0 0
%>85 97 82 50 38 36 %>85 0 0 0 0 0
%>80 99 92 73 64 61 %>80 0 0 0 0 2
NORFOLK_VA ORLANDO_FL
ORF 0921 0922 0923 0924 0925 ORL 0921 0922 0923 0924 0925
MAX 89 83 76 77 76 MAX 98 100 100 99 98
%>110 2 0 0 0 0 %>110 4 10 12 10 6
%>105 5 1 0 0 0 %>105 15 26 29 24 18
%>100 12 3 0 0 0 %>100 38 51 52 45 39
%>95 23 8 0 0 0 %>95 66 76 74 68 64
%>90 41 18 0 3 1 %>90 88 91 89 85 84
%>85 63 34 2 11 7 %>85 97 98 97 95 95
%>80 84 59 14 31 24 %>80 100 100 99 99 99
PHILADELPHIA_PA PITTSBURGH_PA
PHL 0921 0922 0923 0924 0925 PIT 0921 0922 0923 0924 0925
MAX 71 65 64 67 71 MAX 68 65 64 67 69
%>110 0 0 0 0 0 %>110 0 0 0 0 0
%>105 0 0 0 0 0 %>105 0 0 0 0 0
%>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 1 %>85 0 0 0 0 0
%>80 6 0 0 1 7 %>80 2 1 0 0 3
PORTLAND_ME PROVIDENCE_RI
PWM 0921 0922 0923 0924 0925 PVD 0921 0922 0923 0924 0925
MAX 64 60 59 60 63 MAX 64 60 61 63 66
%>110 0 0 0 0 0 %>110 0 0 0 0 0
%>105 0 0 0 0 0 %>105 0 0 0 0 0
%>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 1
RALEIGH-DURHAM_NC RICHMOND_VA
RDU 0921 0922 0923 0924 0925 RIC 0921 0922 0923 0924 0925
MAX 96 87 74 78 78 MAX 89 78 68 74 75
%>110 3 1 0 0 0 %>110 3 0 0 0 0
%>105 11 4 0 0 0 %>105 8 0 0 0 0
%>100 30 11 0 0 0 %>100 16 0 0 0 0
%>95 56 23 0 2 1 %>95 30 2 0 0 0
%>90 79 40 1 7 5 %>90 47 7 0 1 2
%>85 93 59 5 19 16 %>85 65 19 0 7 9
%>80 98 76 19 41 38 %>80 80 40 1 21 26
SAVANNAH_GA TALLAHASSEE_FL
SAV 0921 0922 0923 0924 0925 TLH 0921 0922 0923 0924 0925
MAX 97 97 95 91 88 MAX 99 100 99 95 91
%>110 4 9 7 2 0 %>110 5 8 8 2 0
%>105 14 21 16 6 1 %>105 18 23 22 10 2
%>100 35 39 31 16 4 %>100 43 48 46 26 9
%>95 61 60 50 34 16 %>95 72 74 71 51 28
%>90 83 78 69 56 39 %>90 91 91 89 75 58
%>85 95 90 84 77 66 %>85 98 98 97 91 83
%>80 99 97 93 91 87 %>80 100 100 99 98 96
TAMPA_FL WASHINGTON_DC
TPA 0921 0922 0923 0924 0925 DCA 0921 0922 0923 0924 0925
MAX 97 99 100 100 98 MAX 78 70 64 69 72
%>110 4 8 12 11 5 %>110 0 0 0 0 0
%>105 14 21 27 27 17 %>105 0 0 0 0 0
%>100 35 43 50 50 39 %>100 1 0 0 0 0
%>95 63 68 72 74 66 %>95 3 0 0 0 0
%>90 85 87 89 90 87 %>90 9 0 0 0 0
%>85 96 96 96 97 97 %>85 22 1 0 0 3
%>80 99 99 99 99 99 %>80 43 5 0 2 12
URL IS WWW.WPC.NCEP.NOAA.GOV
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