Heat Index Forecast Tables
Issued by NWS
Issued by NWS
690
FMUS24 KWNH 161819
PRBWHL
DAYS 3--7 HEAT INDEX FORECAST TABLES
NWS WEATHER PREDICTION CENTER COLLEGE PARK MD
1817 UTC SUN AUG 16 2026
MINIMUM HEAT INDEX (DEG F) AND MINIMUM HI PROB (%) FRCSTS
AT WESTERN US CITIES - DAYS 3 TO 7 FROM SUN AUG 16 2026
ABILENE_TX ALBUQUERQUE_NM
ABI 0819 0820 0821 0822 0823 ABQ 0819 0820 0821 0822 0823
MIN 77 77 77 77 77 MIN 65 65 64 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 2 1 2 3 4 %>85 0 0 0 0 0
%>80 27 22 24 23 24 %>80 0 0 0 0 0
%>75 76 76 73 66 64 %>75 4 5 2 2 4
%>70 96 97 95 92 91 %>70 19 21 14 17 20
AMARILLO_TX AUSTIN_TX
AMA 0819 0820 0821 0822 0823 AUS 0819 0820 0821 0822 0823
MIN 71 69 68 70 71 MIN 79 78 79 79 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 0 0 0 0 0
%>85 1 0 0 0 1 %>85 1 0 1 4 5
%>80 5 1 2 3 5 %>80 33 23 33 38 36
%>75 22 10 11 17 24 %>75 94 90 93 88 83
%>70 54 40 38 51 58 %>70 100 100 100 99 99
BATON_ROUGE_LA BISMARCK_ND
BTR 0819 0820 0821 0822 0823 BIS 0819 0820 0821 0822 0823
MIN 80 78 78 78 77 MIN 53 57 58 56 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 2 2 1 2 1 %>90 0 0 0 0 0
%>85 16 12 8 12 8 %>85 0 0 0 0 0
%>80 54 39 36 36 29 %>80 0 0 0 0 0
%>75 88 73 74 69 62 %>75 0 0 0 0 2
%>70 99 93 95 91 88 %>70 0 1 2 1 8
BROWNSVILLE_TX CORPUS_CHRISTI_TX
BRO 0819 0820 0821 0822 0823 CRP 0819 0820 0821 0822 0823
MIN 84 88 88 85 84 MIN 80 84 83 81 81
%>100 0 0 0 0 0 %>100 0 1 1 0 0
%>95 0 1 2 0 0 %>95 2 4 4 2 2
%>90 4 24 29 6 5 %>90 6 14 15 8 6
%>85 40 88 83 48 40 %>85 16 40 38 24 19
%>80 88 99 98 91 87 %>80 48 72 69 57 55
%>75 99 100 100 99 99 %>75 86 91 90 88 89
%>70 100 100 100 100 100 %>70 99 98 98 99 99
DALLAS_TX DENVER_CO
DFW 0819 0820 0821 0822 0823 DEN 0819 0820 0821 0822 0823
MIN 84 83 83 81 81 MIN 60 58 60 62 62
%>100 0 0 0 0 0 %>100 0 0 0 0 0
%>95 0 0 0 1 1 %>95 0 0 0 0 0
%>90 5 1 6 6 8 %>90 0 0 0 0 0
%>85 41 29 31 26 27 %>85 0 0 0 0 0
%>80 87 85 71 60 57 %>80 0 0 0 0 0
%>75 99 98 94 86 83 %>75 0 0 0 0 0
%>70 100 100 99 97 95 %>70 1 1 2 3 6
DES_MOINES_IA EL_PASO_TX
DSM 0819 0820 0821 0822 0823 ELP 0819 0820 0821 0822 0823
MIN 66 61 62 65 64 MIN 71 72 74 74 74
%>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 1 2 2 1 1
%>80 0 0 0 0 0 %>80 5 10 12 8 9
%>75 0 0 0 0 1 %>75 23 32 41 42 42
%>70 11 3 2 9 11 %>70 57 65 78 83 83
FRESNO_CA GOODLAND_KS
FAT 0819 0820 0821 0822 0823 GLD 0819 0820 0821 0822 0823
MIN 66 67 66 64 65 MIN 61 59 61 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 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 2
%>75 2 3 3 1 1 %>75 2 1 2 5 7
%>70 21 24 21 11 13 %>70 9 6 10 16 20
GREAT_FALLS_MT HOUSTON_TX
GTF 0819 0820 0821 0822 0823 HOU 0819 0820 0821 0822 0823
MIN 50 51 53 56 55 MIN 81 80 82 83 82
%>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 3 1 5 6 5
%>85 0 0 0 0 0 %>85 19 11 27 32 27
%>80 0 0 0 0 0 %>80 63 53 67 72 64
%>75 0 0 0 0 0 %>75 95 91 92 93 89
%>70 0 0 1 2 2 %>70 100 99 99 99 98
JACKSON_MS KANSAS_CITY_MO
JAN 0819 0820 0821 0822 0823 MCI 0819 0820 0821 0822 0823
MIN 79 77 76 75 73 MIN 71 67 65 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 2 2 1 1 0 %>90 0 0 0 0 0
%>85 13 10 5 4 2 %>85 0 0 0 0 0
%>80 42 33 24 18 13 %>80 2 0 0 0 1
%>75 76 66 60 47 38 %>75 17 4 1 4 10
%>70 95 90 88 78 71 %>70 56 27 12 30 36
LAS_VEGAS_NV LITTLE_ROCK_AR
LAS 0819 0820 0821 0822 0823 LIT 0819 0820 0821 0822 0823
MIN 81 81 82 81 81 MIN 78 78 75 73 73
%>100 0 0 0 0 1 %>100 0 0 0 0 0
%>95 2 2 2 2 3 %>95 0 0 0 0 0
%>90 8 9 10 10 11 %>90 2 2 1 0 1
%>85 25 28 31 30 28 %>85 11 11 6 3 4
%>80 54 57 62 58 54 %>80 37 35 21 14 15
%>75 81 83 87 83 78 %>75 71 68 48 38 39
%>70 95 96 97 95 93 %>70 92 91 77 68 67
LOS_ANGELES_CA MIDLAND_TX
LAX 0819 0820 0821 0822 0823 MAF 0819 0820 0821 0822 0823
MIN 68 69 69 69 68 MIN 73 73 74 74 74
%>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 4 2 5 5 7
%>75 3 5 8 9 8 %>75 32 31 39 36 38
%>70 29 37 40 39 36 %>70 80 84 85 82 81
MINNEAPOLIS_MN NEW_ORLEANS_LA
MSP 0819 0820 0821 0822 0823 MSY 0819 0820 0821 0822 0823
MIN 57 58 63 63 62 MIN 86 84 84 83 82
%>100 0 0 0 0 0 %>100 1 1 0 1 0
%>95 0 0 0 0 0 %>95 6 4 3 4 3
%>90 0 0 0 0 0 %>90 27 18 16 15 12
%>85 0 0 0 0 0 %>85 60 47 45 40 34
%>80 0 0 0 0 0 %>80 86 75 74 68 63
%>75 0 0 0 0 1 %>75 97 92 92 88 86
%>70 0 0 3 3 6 %>70 100 98 98 97 96
NORTH_PLATTE_NE OKLAHOMA_CITY_OK
LBF 0819 0820 0821 0822 0823 OKC 0819 0820 0821 0822 0823
MIN 61 59 61 62 64 MIN 79 77 74 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 3 2 1 1 2
%>85 0 0 0 0 0 %>85 14 10 5 6 8
%>80 0 0 0 0 1 %>80 43 31 18 20 24
%>75 1 0 1 2 4 %>75 74 61 43 44 51
%>70 6 2 6 10 17 %>70 92 85 70 72 76
OMAHA_NE PENDLETON_OR
OMA 0819 0820 0821 0822 0823 PDT 0819 0820 0821 0822 0823
MIN 66 62 64 66 65 MIN 55 56 59 57 53
%>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 0 0
%>75 1 0 0 1 3 %>75 0 1 4 2 0
%>70 13 5 6 12 19 %>70 2 3 11 6 1
PHOENIX_AZ PORTLAND_OR
PHX 0819 0820 0821 0822 0823 PDX 0819 0820 0821 0822 0823
MIN 88 89 88 88 87 MIN 55 56 58 57 56
%>100 2 2 1 1 1 %>100 0 0 0 0 0
%>95 10 13 7 8 8 %>95 0 0 0 0 0
%>90 34 41 33 32 31 %>90 0 0 0 0 0
%>85 69 76 72 69 68 %>85 0 0 0 0 0
%>80 92 95 95 93 92 %>80 0 0 0 0 0
%>75 99 100 100 99 99 %>75 0 0 0 0 0
%>70 100 100 100 100 100 %>70 0 0 0 0 0
RAPID_CITY_SD SACRAMENTO_CA
RAP 0819 0820 0821 0822 0823 SAC 0819 0820 0821 0822 0823
MIN 57 57 59 62 64 MIN 60 59 58 58 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 0 0 0 0 0 %>85 0 0 0 0 0
%>80 0 0 0 0 2 %>80 0 0 0 0 0
%>75 0 0 1 2 8 %>75 0 0 0 0 0
%>70 2 2 6 10 22 %>70 0 1 1 0 0
SAINT_LOUIS_MO SALT_LAKE_CITY_UT
STL 0819 0820 0821 0822 0823 SLC 0819 0820 0821 0822 0823
MIN 73 69 66 66 67 MIN 67 68 70 68 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 1 1 0 0 0 %>80 0 0 0 1 0
%>75 24 11 3 3 4 %>75 4 3 8 10 3
%>70 83 43 18 22 25 %>70 29 30 52 40 19
SAN_ANTONIO_TX SAN_DIEGO_CA
SAT 0819 0820 0821 0822 0823 SAN 0819 0820 0821 0822 0823
MIN 78 78 78 78 78 MIN 69 69 70 70 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 2 1 3 7 6 %>85 0 0 0 0 0
%>80 25 25 31 36 34 %>80 0 0 0 0 1
%>75 78 80 82 79 77 %>75 2 4 4 6 7
%>70 99 99 99 98 97 %>70 38 44 47 47 47
SAN_FRANCISCO_CA SEATTLE_WA
SFO 0819 0820 0821 0822 0823 SEA 0819 0820 0821 0822 0823
MIN 57 57 57 57 57 MIN 56 56 57 57 56
%>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 0 0 %>70 0 0 0 0 0
SHREVEPORT_LA SIOUX_FALLS_SD
SHV 0819 0820 0821 0822 0823 FSD 0819 0820 0821 0822 0823
MIN 83 80 78 77 76 MIN 56 57 60 60 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 3 2 1 2 2 %>90 0 0 0 0 0
%>85 32 15 11 10 8 %>85 0 0 0 0 0
%>80 80 47 38 31 27 %>80 0 0 0 0 0
%>75 98 81 74 62 56 %>75 0 0 0 0 1
%>70 100 97 94 87 82 %>70 1 1 2 2 7
SPRINGFIELD_MO TUCSON_AZ
SGF 0819 0820 0821 0822 0823 TUS 0819 0820 0821 0822 0823
MIN 75 72 68 68 69 MIN 78 78 77 78 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 1 1 0 1 1
%>85 2 1 0 0 0 %>85 10 10 5 8 9
%>80 16 7 2 1 3 %>80 35 37 27 33 32
%>75 50 28 10 8 14 %>75 72 74 67 71 67
%>70 83 64 35 33 40 %>70 95 95 92 94 91
TULSA_OK WICHITA_KS
TUL 0819 0820 0821 0822 0823 ICT 0819 0820 0821 0822 0823
MIN 81 78 74 74 75 MIN 73 69 68 70 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 1 1 1 0 1 %>90 0 0 0 0 0
%>85 13 10 5 3 6 %>85 1 1 0 1 1
%>80 65 35 18 16 21 %>80 9 4 2 5 8
%>75 93 69 44 43 49 %>75 36 18 11 21 28
%>70 99 92 74 74 77 %>70 73 47 36 51 59
YUMA_AZ
YUM 0819 0820 0821 0822 0823
MIN 90 90 88 87 87
%>100 2 1 0 0 0
%>95 14 10 3 2 3
%>90 47 54 31 22 26
%>85 84 93 84 71 72
%>80 98 100 99 97 96
%>75 100 100 100 100 100
%>70 100 100 100 100 100
URL IS WWW.WPC.NCEP.NOAA.GOV
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