Heat Index Forecast Tables
Issued by NWS
Issued by NWS
812
FMUS24 KWNH 120654
PRBWHI
DAYS 3--7 HEAT INDEX FORECAST TABLES
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
0653 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 74 75 76 76 76
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 1 2 %>95 0 0 0 0 0
%>90 20 8 14 27 30 %>90 0 0 1 1 1
%>85 89 69 79 84 85 %>85 1 3 4 6 7
%>80 100 99 100 100 99 %>80 9 16 19 22 25
%>75 100 100 100 100 100 %>75 42 52 53 54 57
%>70 100 100 100 100 100 %>70 84 88 86 85 86
AMARILLO_TX AUSTIN_TX
AMA 0815 0816 0817 0818 0819 AUS 0815 0816 0817 0818 0819
MEAN 83 83 82 82 83 MEAN 92 90 91 92 92
%>100 0 0 0 0 0 %>100 2 1 3 3 2
%>95 0 0 0 0 0 %>95 21 13 21 24 21
%>90 1 0 2 2 4 %>90 71 50 63 70 67
%>85 27 23 22 23 32 %>85 97 88 93 96 96
%>80 89 90 67 75 81 %>80 100 99 100 100 100
%>75 100 100 95 98 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 93 95 95 94 94 MEAN 65 64 69 70 69
%>100 7 14 19 13 13 %>100 0 0 0 0 0
%>95 33 46 50 42 40 %>95 0 0 0 0 0
%>90 75 82 82 77 74 %>90 0 0 0 0 0
%>85 96 97 97 96 94 %>85 0 0 0 0 1
%>80 100 100 100 100 99 %>80 0 0 1 3 4
%>75 100 100 100 100 100 %>75 2 2 10 17 16
%>70 100 100 100 100 100 %>70 14 12 43 51 41
BROWNSVILLE_TX CORPUS_CHRISTI_TX
BRO 0815 0816 0817 0818 0819 CRP 0815 0816 0817 0818 0819
MEAN 98 97 97 97 97 MEAN 97 95 95 95 96
%>100 34 23 22 23 26 %>100 22 12 14 14 15
%>95 80 68 64 66 68 %>95 73 47 48 50 52
%>90 98 96 93 94 95 %>90 98 89 87 91 91
%>85 100 100 100 100 100 %>85 100 99 99 99 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 93 94 95 95 MEAN 69 68 69 71 71
%>100 0 1 2 7 6 %>100 0 0 0 0 0
%>95 32 27 35 49 51 %>95 0 0 0 0 0
%>90 94 83 89 93 93 %>90 0 0 0 0 0
%>85 100 99 100 100 100 %>85 0 0 0 0 0
%>80 100 100 100 100 100 %>80 0 0 0 1 4
%>75 100 100 100 100 100 %>75 5 6 8 17 24
%>70 100 100 100 100 100 %>70 40 35 43 62 61
DES_MOINES_IA EL_PASO_TX
DSM 0815 0816 0817 0818 0819 ELP 0815 0816 0817 0818 0819
MEAN 86 78 72 75 77 MEAN 82 81 81 82 83
%>100 1 0 0 0 0 %>100 0 0 0 0 0
%>95 6 0 0 0 1 %>95 0 0 0 0 1
%>90 25 1 0 0 4 %>90 3 3 2 4 7
%>85 59 9 0 3 15 %>85 21 20 19 25 32
%>80 87 33 4 16 36 %>80 63 60 59 69 72
%>75 98 68 25 48 62 %>75 93 92 91 96 95
%>70 100 92 65 81 84 %>70 100 99 99 100 100
FRESNO_CA GOODLAND_KS
FAT 0815 0816 0817 0818 0819 GLD 0815 0816 0817 0818 0819
MEAN 74 76 76 75 75 MEAN 75 72 72 74 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 2 2 %>85 2 1 1 2 6
%>80 4 11 14 16 16 %>80 15 7 7 14 22
%>75 46 66 62 53 50 %>75 49 28 28 42 53
%>70 90 94 93 86 83 %>70 84 62 62 75 81
GREAT_FALLS_MT HOUSTON_TX
GTF 0815 0816 0817 0818 0819 HOU 0815 0816 0817 0818 0819
MEAN 62 66 67 66 65 MEAN 95 93 95 95 96
%>100 0 0 0 0 0 %>100 11 4 15 17 18
%>95 0 0 0 0 0 %>95 49 26 45 51 53
%>90 0 0 0 0 0 %>90 90 73 81 86 88
%>85 0 0 0 0 0 %>85 100 97 97 98 99
%>80 0 0 0 0 1 %>80 100 100 100 100 100
%>75 0 2 3 4 6 %>75 100 100 100 100 100
%>70 2 15 24 24 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 93 94 93 93 MEAN 92 89 81 82 85
%>100 1 2 5 5 9 %>100 3 2 0 0 1
%>95 18 26 35 32 37 %>95 22 13 1 1 6
%>90 68 78 82 75 74 %>90 67 40 7 7 21
%>85 97 99 99 96 95 %>85 95 74 25 28 47
%>80 100 100 100 100 100 %>80 100 93 55 62 75
%>75 100 100 100 100 100 %>75 100 99 82 88 92
%>70 100 100 100 100 100 %>70 100 100 96 98 98
LAS_VEGAS_NV LITTLE_ROCK_AR
LAS 0815 0816 0817 0818 0819 LIT 0815 0816 0817 0818 0819
MEAN 83 86 87 87 87 MEAN 92 93 94 92 92
%>100 1 2 3 4 3 %>100 1 1 5 4 5
%>95 4 9 12 14 12 %>95 21 26 44 27 29
%>90 14 26 34 36 32 %>90 75 84 90 70 69
%>85 35 53 63 63 60 %>85 98 99 100 95 94
%>80 64 79 86 85 83 %>80 100 100 100 100 99
%>75 86 94 97 96 95 %>75 100 100 100 100 100
%>70 97 99 100 100 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 72 72 73 73 MEAN 86 84 85 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 8 1 3 4 7
%>85 0 0 0 0 1 %>85 60 36 45 52 54
%>80 1 1 2 5 6 %>80 97 94 95 97 96
%>75 7 12 19 29 31 %>75 100 100 100 100 100
%>70 57 71 76 75 74 %>70 100 100 100 100 100
MINNEAPOLIS_MN NEW_ORLEANS_LA
MSP 0815 0816 0817 0818 0819 MSY 0815 0816 0817 0818 0819
MEAN 72 71 70 72 72 MEAN 96 98 98 98 98
%>100 0 0 0 0 0 %>100 18 35 39 38 35
%>95 0 0 0 0 0 %>95 54 70 73 72 71
%>90 0 0 0 0 0 %>90 88 93 93 93 93
%>85 1 0 0 0 2 %>85 99 99 99 99 99
%>80 7 2 0 5 11 %>80 100 100 100 100 100
%>75 30 18 8 30 31 %>75 100 100 100 100 100
%>70 66 60 45 70 59 %>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 73 70 70 73 74 MEAN 91 91 90 90 91
%>100 0 0 0 0 0 %>100 0 0 0 1 1
%>95 0 0 0 0 0 %>95 13 13 7 12 15
%>90 0 0 0 0 1 %>90 66 69 54 52 56
%>85 1 0 1 3 6 %>85 96 97 95 90 91
%>80 7 3 4 13 20 %>80 100 100 100 99 99
%>75 35 18 21 40 45 %>75 100 100 100 100 100
%>70 75 51 52 72 72 %>70 100 100 100 100 100
OMAHA_NE PENDLETON_OR
OMA 0815 0816 0817 0818 0819 PDT 0815 0816 0817 0818 0819
MEAN 85 76 72 76 78 MEAN 71 72 72 70 67
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 3 0 0 0 1 %>95 0 0 0 0 0
%>90 17 1 0 1 6 %>90 0 0 0 0 0
%>85 48 6 1 6 19 %>85 0 0 1 1 1
%>80 80 26 8 23 42 %>80 2 4 6 4 3
%>75 96 61 32 55 68 %>75 18 24 28 20 13
%>70 100 88 68 83 88 %>70 62 68 68 50 34
PHOENIX_AZ PORTLAND_OR
PHX 0815 0816 0817 0818 0819 PDX 0815 0816 0817 0818 0819
MEAN 93 95 96 97 96 MEAN 70 71 71 69 68
%>100 8 15 21 26 23 %>100 0 0 0 0 0
%>95 33 47 58 62 56 %>95 0 0 0 0 0
%>90 70 80 88 90 85 %>90 0 0 0 0 0
%>85 93 96 99 99 97 %>85 0 0 0 0 0
%>80 99 100 100 100 100 %>80 0 0 1 2 1
%>75 100 100 100 100 100 %>75 4 11 16 13 9
%>70 100 100 100 100 100 %>70 50 63 61 42 33
RAPID_CITY_SD SACRAMENTO_CA
RAP 0815 0816 0817 0818 0819 SAC 0815 0816 0817 0818 0819
MEAN 67 68 71 72 72 MEAN 70 71 71 71 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 1 3 %>85 0 0 0 0 0
%>80 0 1 2 6 12 %>80 0 0 0 2 3
%>75 4 7 17 28 32 %>75 2 7 11 20 22
%>70 24 31 55 64 61 %>70 43 64 60 63 66
SAINT_LOUIS_MO SALT_LAKE_CITY_UT
STL 0815 0816 0817 0818 0819 SLC 0815 0816 0817 0818 0819
MEAN 95 94 85 82 85 MEAN 69 71 73 74 73
%>100 17 12 1 0 2 %>100 0 0 0 0 0
%>95 52 41 6 2 8 %>95 0 0 0 0 0
%>90 86 77 22 10 24 %>90 0 0 0 0 0
%>85 98 96 51 32 50 %>85 0 0 0 1 2
%>80 100 100 80 64 76 %>80 0 0 2 11 12
%>75 100 100 95 88 92 %>75 3 11 30 44 40
%>70 100 100 99 98 98 %>70 45 67 82 81 73
SAN_ANTONIO_TX SAN_DIEGO_CA
SAT 0815 0816 0817 0818 0819 SAN 0815 0816 0817 0818 0819
MEAN 91 89 90 91 91 MEAN 72 73 73 73 73
%>100 1 0 1 3 1 %>100 0 0 0 0 0
%>95 13 9 14 19 15 %>95 0 0 0 0 0
%>90 62 44 51 58 55 %>90 0 0 0 0 0
%>85 96 86 88 90 91 %>85 0 0 0 0 1
%>80 100 99 99 99 99 %>80 1 3 4 5 5
%>75 100 100 100 100 100 %>75 12 19 23 26 27
%>70 100 100 100 100 100 %>70 76 83 81 78 73
SAN_FRANCISCO_CA SEATTLE_WA
SFO 0815 0816 0817 0818 0819 SEA 0815 0816 0817 0818 0819
MEAN 61 60 61 62 62 MEAN 69 69 69 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 0 %>75 4 5 8 5 3
%>70 0 0 0 0 0 %>70 35 39 40 25 18
SHREVEPORT_LA SIOUX_FALLS_SD
SHV 0815 0816 0817 0818 0819 FSD 0815 0816 0817 0818 0819
MEAN 91 92 93 93 93 MEAN 71 68 66 69 70
%>100 0 2 3 3 6 %>100 0 0 0 0 0
%>95 11 22 32 30 31 %>95 0 0 0 0 0
%>90 61 70 81 80 71 %>90 0 0 0 0 2
%>85 96 96 99 99 94 %>85 2 0 0 2 5
%>80 100 100 100 100 100 %>80 9 2 2 7 14
%>75 100 100 100 100 100 %>75 29 11 10 22 30
%>70 100 100 100 100 100 %>70 59 35 28 46 50
SPRINGFIELD_MO TUCSON_AZ
SGF 0815 0816 0817 0818 0819 TUS 0815 0816 0817 0818 0819
MEAN 91 90 88 85 87 MEAN 84 87 88 89 88
%>100 0 0 1 0 1 %>100 0 1 2 5 5
%>95 9 6 8 4 8 %>95 2 7 11 17 15
%>90 59 57 34 20 30 %>90 10 25 35 43 38
%>85 97 97 72 54 65 %>85 38 61 73 75 68
%>80 100 100 94 85 90 %>80 79 91 95 94 90
%>75 100 100 99 98 99 %>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 94 94 92 92 92 MEAN 91 90 86 85 87
%>100 2 2 3 3 5 %>100 0 1 0 0 1
%>95 37 41 26 23 28 %>95 6 9 3 4 7
%>90 90 93 71 64 68 %>90 57 47 20 20 28
%>85 100 100 96 93 94 %>85 97 88 56 52 61
%>80 100 100 100 99 99 %>80 100 99 88 83 88
%>75 100 100 100 100 100 %>75 100 100 98 97 98
%>70 100 100 100 100 100 %>70 100 100 100 100 100
YUMA_AZ
YUM 0815 0816 0817 0818 0819
MEAN 93 94 95 95 95
%>100 3 5 8 13 20
%>95 30 43 48 51 47
%>90 80 90 91 88 76
%>85 99 100 100 99 93
%>80 100 100 100 100 99
%>75 100 100 100 100 100
%>70 100 100 100 100 100
URL IS WWW.WPC.NCEP.NOAA.GOV
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