Heat Index Forecast Tables
Issued by NWS
Issued by NWS
249
FMUS24 KWNH 121729
PRBWHI
DAYS 3--7 HEAT INDEX FORECAST TABLES
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1727 UTC WED AUG 12 2026
MEAN HEAT INDEX (DEG F) AND MEAN HI PROB (%) FRCSTS
AT WESTERN US CITIES - DAYS 3 TO 7 FROM WED AUG 12 2026
ABILENE_TX ALBUQUERQUE_NM
ABI 0815 0816 0817 0818 0819 ABQ 0815 0816 0817 0818 0819
MEAN 88 86 87 88 88 MEAN 75 75 75 76 77
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 0 1 %>95 0 0 0 0 0
%>90 14 5 11 20 26 %>90 0 0 0 1 2
%>85 87 65 76 84 85 %>85 2 2 1 6 10
%>80 100 99 99 100 99 %>80 14 14 12 23 31
%>75 100 100 100 100 100 %>75 48 47 45 57 63
%>70 100 100 100 100 100 %>70 86 85 84 88 89
AMARILLO_TX AUSTIN_TX
AMA 0815 0816 0817 0818 0819 AUS 0815 0816 0817 0818 0819
MEAN 83 83 81 83 84 MEAN 91 89 90 91 91
%>100 0 0 0 0 0 %>100 0 0 0 1 1
%>95 0 0 0 0 0 %>95 8 5 7 16 13
%>90 1 0 1 1 4 %>90 64 39 48 65 61
%>85 24 17 15 23 36 %>85 99 88 93 97 96
%>80 87 86 63 77 85 %>80 100 100 100 100 100
%>75 100 100 95 99 99 %>75 100 100 100 100 100
%>70 100 100 100 100 100 %>70 100 100 100 100 100
BATON_ROUGE_LA BISMARCK_ND
BTR 0815 0816 0817 0818 0819 BIS 0815 0816 0817 0818 0819
MEAN 92 93 93 93 92 MEAN 66 65 68 69 69
%>100 3 11 12 11 8 %>100 0 0 0 0 0
%>95 25 37 38 38 31 %>95 0 0 0 0 0
%>90 71 72 73 73 67 %>90 0 0 0 0 0
%>85 96 93 93 94 91 %>85 0 0 0 0 1
%>80 100 99 99 99 99 %>80 0 0 1 2 5
%>75 100 100 100 100 100 %>75 3 2 9 13 18
%>70 100 100 100 100 100 %>70 21 16 38 44 44
BROWNSVILLE_TX CORPUS_CHRISTI_TX
BRO 0815 0816 0817 0818 0819 CRP 0815 0816 0817 0818 0819
MEAN 98 97 96 97 97 MEAN 97 95 94 96 95
%>100 31 20 12 22 20 %>100 19 12 9 14 12
%>95 78 71 61 65 65 %>95 68 47 39 51 46
%>90 98 97 96 94 95 %>90 98 87 85 92 89
%>85 100 100 100 100 100 %>85 100 99 99 100 99
%>80 100 100 100 100 100 %>80 100 100 100 100 100
%>75 100 100 100 100 100 %>75 100 100 100 100 100
%>70 100 100 100 100 100 %>70 100 100 100 100 100
DALLAS_TX DENVER_CO
DFW 0815 0816 0817 0818 0819 DEN 0815 0816 0817 0818 0819
MEAN 94 92 93 94 94 MEAN 69 68 68 71 72
%>100 0 0 1 3 3 %>100 0 0 0 0 0
%>95 32 16 21 41 44 %>95 0 0 0 0 0
%>90 95 76 82 91 93 %>90 0 0 0 0 0
%>85 100 99 100 100 100 %>85 0 0 0 0 1
%>80 100 100 100 100 100 %>80 0 0 0 1 9
%>75 100 100 100 100 100 %>75 3 4 5 15 32
%>70 100 100 100 100 100 %>70 37 30 32 55 67
DES_MOINES_IA EL_PASO_TX
DSM 0815 0816 0817 0818 0819 ELP 0815 0816 0817 0818 0819
MEAN 86 80 72 74 78 MEAN 82 81 81 83 84
%>100 1 0 0 0 0 %>100 0 0 0 0 0
%>95 7 0 0 0 0 %>95 0 0 0 1 1
%>90 27 3 0 0 2 %>90 4 2 3 7 9
%>85 59 16 0 2 11 %>85 25 18 20 32 39
%>80 86 46 5 13 35 %>80 66 58 62 73 78
%>75 97 79 28 46 67 %>75 93 91 93 96 97
%>70 100 96 69 82 90 %>70 100 99 100 100 100
FRESNO_CA GOODLAND_KS
FAT 0815 0816 0817 0818 0819 GLD 0815 0816 0817 0818 0819
MEAN 74 76 76 76 76 MEAN 75 71 71 73 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 0 0 %>90 0 0 0 0 1
%>85 0 0 1 3 4 %>85 2 1 1 4 5
%>80 3 8 16 21 23 %>80 15 6 6 15 20
%>75 45 66 64 61 61 %>75 51 27 25 40 48
%>70 90 95 93 90 89 %>70 87 60 56 70 77
GREAT_FALLS_MT HOUSTON_TX
GTF 0815 0816 0817 0818 0819 HOU 0815 0816 0817 0818 0819
MEAN 61 65 66 66 66 MEAN 95 92 93 95 95
%>100 0 0 0 0 0 %>100 8 2 4 14 13
%>95 0 0 0 0 0 %>95 44 19 27 47 46
%>90 0 0 0 0 0 %>90 91 68 76 86 86
%>85 0 0 0 0 0 %>85 100 97 98 99 99
%>80 0 0 0 0 0 %>80 100 100 100 100 100
%>75 0 1 2 3 5 %>75 100 100 100 100 100
%>70 2 12 18 22 22 %>70 100 100 100 100 100
JACKSON_MS KANSAS_CITY_MO
JAN 0815 0816 0817 0818 0819 MCI 0815 0816 0817 0818 0819
MEAN 92 92 93 94 92 MEAN 91 89 81 82 84
%>100 1 3 7 9 6 %>100 1 2 0 0 1
%>95 17 27 35 40 29 %>95 14 12 1 1 6
%>90 70 72 76 81 66 %>90 57 40 7 8 20
%>85 98 96 97 98 92 %>85 92 75 27 29 45
%>80 100 100 100 100 99 %>80 99 94 58 62 73
%>75 100 100 100 100 100 %>75 100 99 85 88 91
%>70 100 100 100 100 100 %>70 100 100 97 98 98
LAS_VEGAS_NV LITTLE_ROCK_AR
LAS 0815 0816 0817 0818 0819 LIT 0815 0816 0817 0818 0819
MEAN 81 84 86 87 87 MEAN 92 93 94 93 93
%>100 0 1 2 4 4 %>100 1 2 3 4 6
%>95 2 4 9 14 15 %>95 19 25 38 33 32
%>90 10 17 27 35 37 %>90 68 76 87 80 73
%>85 29 43 57 63 63 %>85 96 98 99 98 95
%>80 58 74 83 85 84 %>80 100 100 100 100 100
%>75 83 92 95 96 95 %>75 100 100 100 100 100
%>70 95 98 99 99 99 %>70 100 100 100 100 100
LOS_ANGELES_CA MIDLAND_TX
LAX 0815 0816 0817 0818 0819 MAF 0815 0816 0817 0818 0819
MEAN 71 71 72 73 74 MEAN 85 84 84 85 85
%>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 1 0 1 1 4
%>85 0 0 0 1 1 %>85 42 25 35 43 51
%>80 0 1 1 6 8 %>80 97 95 95 98 96
%>75 6 12 17 30 35 %>75 100 100 100 100 100
%>70 55 67 70 78 79 %>70 100 100 100 100 100
MINNEAPOLIS_MN NEW_ORLEANS_LA
MSP 0815 0816 0817 0818 0819 MSY 0815 0816 0817 0818 0819
MEAN 75 74 71 73 73 MEAN 95 97 97 98 97
%>100 0 0 0 0 0 %>100 15 27 32 33 28
%>95 0 0 0 0 0 %>95 50 62 66 67 63
%>90 0 0 0 0 0 %>90 87 89 90 91 89
%>85 1 0 0 0 2 %>85 99 98 98 99 98
%>80 14 6 1 6 13 %>80 100 100 100 100 100
%>75 54 39 15 36 39 %>75 100 100 100 100 100
%>70 90 83 62 78 73 %>70 100 100 100 100 100
NORTH_PLATTE_NE OKLAHOMA_CITY_OK
LBF 0815 0816 0817 0818 0819 OKC 0815 0816 0817 0818 0819
MEAN 74 70 69 72 74 MEAN 90 90 89 90 91
%>100 0 0 0 0 0 %>100 0 0 0 1 1
%>95 0 0 0 0 0 %>95 11 10 6 10 15
%>90 0 0 0 0 1 %>90 57 56 43 48 56
%>85 1 0 1 3 4 %>85 92 92 89 88 91
%>80 12 3 5 12 17 %>80 100 99 99 99 99
%>75 45 17 18 35 42 %>75 100 100 100 100 100
%>70 82 50 43 64 71 %>70 100 100 100 100 100
OMAHA_NE PENDLETON_OR
OMA 0815 0816 0817 0818 0819 PDT 0815 0816 0817 0818 0819
MEAN 85 79 72 76 78 MEAN 71 71 72 70 68
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 4 0 0 0 1 %>95 0 0 0 0 0
%>90 20 1 0 1 4 %>90 0 0 0 0 0
%>85 53 10 1 5 16 %>85 0 0 1 0 0
%>80 84 39 7 22 39 %>80 2 4 5 3 2
%>75 97 76 31 54 67 %>75 15 21 25 18 12
%>70 100 95 68 83 88 %>70 56 61 67 53 37
PHOENIX_AZ PORTLAND_OR
PHX 0815 0816 0817 0818 0819 PDX 0815 0816 0817 0818 0819
MEAN 92 94 95 97 97 MEAN 70 71 71 69 68
%>100 4 9 14 25 27 %>100 0 0 0 0 0
%>95 25 38 51 62 61 %>95 0 0 0 0 0
%>90 65 77 87 90 88 %>90 0 0 0 0 0
%>85 93 96 99 99 98 %>85 0 0 0 0 0
%>80 99 100 100 100 100 %>80 0 0 1 3 2
%>75 100 100 100 100 100 %>75 3 6 13 15 11
%>70 100 100 100 100 100 %>70 51 60 57 45 39
RAPID_CITY_SD SACRAMENTO_CA
RAP 0815 0816 0817 0818 0819 SAC 0815 0816 0817 0818 0819
MEAN 67 67 69 70 71 MEAN 70 71 71 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 1 3 %>85 0 0 0 0 0
%>80 0 1 3 5 11 %>80 0 0 1 3 6
%>75 3 6 16 21 30 %>75 2 6 13 23 34
%>70 25 27 46 52 58 %>70 46 65 60 65 77
SAINT_LOUIS_MO SALT_LAKE_CITY_UT
STL 0815 0816 0817 0818 0819 SLC 0815 0816 0817 0818 0819
MEAN 94 94 86 83 86 MEAN 69 70 72 74 74
%>100 9 7 1 0 3 %>100 0 0 0 0 0
%>95 38 37 7 2 11 %>95 0 0 0 0 0
%>90 78 79 26 13 30 %>90 0 0 0 0 0
%>85 97 97 58 37 58 %>85 0 0 0 0 2
%>80 100 100 84 69 82 %>80 0 0 0 5 12
%>75 100 100 97 91 95 %>75 3 5 15 39 41
%>70 100 100 100 98 99 %>70 40 61 77 82 76
SAN_ANTONIO_TX SAN_DIEGO_CA
SAT 0815 0816 0817 0818 0819 SAN 0815 0816 0817 0818 0819
MEAN 90 89 89 90 90 MEAN 72 72 73 73 74
%>100 0 0 0 1 1 %>100 0 0 0 0 0
%>95 4 3 3 10 10 %>95 0 0 0 0 0
%>90 52 34 34 51 49 %>90 0 0 0 0 0
%>85 97 86 87 91 89 %>85 0 0 0 1 1
%>80 100 100 100 100 99 %>80 1 2 3 7 8
%>75 100 100 100 100 100 %>75 12 17 21 30 32
%>70 100 100 100 100 100 %>70 76 81 80 81 80
SAN_FRANCISCO_CA SEATTLE_WA
SFO 0815 0816 0817 0818 0819 SEA 0815 0816 0817 0818 0819
MEAN 61 60 61 62 63 MEAN 68 68 68 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 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 1 0
%>75 0 0 0 0 0 %>75 2 2 5 6 4
%>70 0 0 0 0 1 %>70 30 31 36 27 21
SHREVEPORT_LA SIOUX_FALLS_SD
SHV 0815 0816 0817 0818 0819 FSD 0815 0816 0817 0818 0819
MEAN 91 91 92 92 92 MEAN 74 70 67 69 71
%>100 0 2 2 3 3 %>100 0 0 0 0 0
%>95 12 20 22 24 22 %>95 0 0 0 0 0
%>90 58 63 69 70 64 %>90 0 0 0 0 0
%>85 94 93 96 96 93 %>85 1 0 0 1 2
%>80 100 100 100 100 100 %>80 10 2 1 5 10
%>75 100 100 100 100 100 %>75 41 14 8 19 30
%>70 100 100 100 100 100 %>70 80 46 29 46 58
SPRINGFIELD_MO TUCSON_AZ
SGF 0815 0816 0817 0818 0819 TUS 0815 0816 0817 0818 0819
MEAN 90 91 88 86 87 MEAN 84 86 88 90 89
%>100 0 0 0 0 1 %>100 0 1 1 5 8
%>95 5 6 5 5 9 %>95 3 5 8 19 22
%>90 45 57 31 25 32 %>90 14 21 32 45 45
%>85 93 97 73 61 65 %>85 43 57 71 77 71
%>80 100 100 96 89 89 %>80 80 90 95 95 90
%>75 100 100 100 99 98 %>75 98 99 100 99 98
%>70 100 100 100 100 100 %>70 100 100 100 100 100
TULSA_OK WICHITA_KS
TUL 0815 0816 0817 0818 0819 ICT 0815 0816 0817 0818 0819
MEAN 93 94 91 92 92 MEAN 90 90 86 86 87
%>100 2 3 2 2 5 %>100 0 0 0 0 1
%>95 31 35 19 21 28 %>95 6 8 3 4 8
%>90 86 86 64 64 68 %>90 51 50 19 21 31
%>85 99 99 94 94 93 %>85 95 91 54 55 65
%>80 100 100 100 100 99 %>80 100 100 86 85 90
%>75 100 100 100 100 100 %>75 100 100 98 98 99
%>70 100 100 100 100 100 %>70 100 100 100 100 100
YUMA_AZ
YUM 0815 0816 0817 0818 0819
MEAN 93 94 94 95 96
%>100 2 4 5 13 24
%>95 24 37 41 52 57
%>90 77 86 88 89 85
%>85 98 99 99 99 97
%>80 100 100 100 100 100
%>75 100 100 100 100 100
%>70 100 100 100 100 100
URL IS WWW.WPC.NCEP.NOAA.GOV
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