FMUS24 KWNH 180654 PRBWHI DAYS 3--7 HEAT INDEX FORECAST TABLES NWS WEATHER PREDICTION CENTER COLLEGE PARK MD 0652 UTC MON MAY 18 2026 MEAN HEAT INDEX (DEG F) AND MEAN HI PROB (%) FRCSTS AT WESTERN US CITIES - DAYS 3 TO 7 FROM MON MAY 18 2026 ABILENE_TX ALBUQUERQUE_NM ABI 0521 0522 0523 0524 0525 ABQ 0521 0522 0523 0524 0525 MEAN 71 74 75 76 77 MEAN 63 63 64 66 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 1 %>90 0 0 0 0 0 %>85 0 1 3 3 8 %>85 0 0 0 0 0 %>80 4 10 16 19 30 %>80 0 0 0 0 1 %>75 22 39 46 55 65 %>75 0 1 2 3 7 %>70 59 77 80 88 91 %>70 4 6 13 20 26 AMARILLO_TX AUSTIN_TX AMA 0521 0522 0523 0524 0525 AUS 0521 0522 0523 0524 0525 MEAN 62 65 67 69 70 MEAN 80 78 80 80 82 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 0 0 2 %>90 0 0 0 0 0 %>90 3 1 3 4 9 %>85 0 0 0 0 0 %>85 16 10 16 19 30 %>80 0 0 0 1 3 %>80 47 38 46 51 63 %>75 1 2 5 8 17 %>75 80 76 79 83 88 %>70 7 16 25 38 50 %>70 96 96 96 97 98 BATON_ROUGE_LA BISMARCK_ND BTR 0521 0522 0523 0524 0525 BIS 0521 0522 0523 0524 0525 MEAN 82 81 81 82 82 MEAN 54 52 57 63 66 %>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 2 2 4 5 8 %>90 0 0 0 0 0 %>85 20 20 23 25 31 %>85 0 0 0 0 0 %>80 70 61 60 61 66 %>80 0 0 0 0 2 %>75 97 92 90 89 90 %>75 0 0 0 2 10 %>70 100 99 99 99 99 %>70 0 0 0 11 28 BROWNSVILLE_TX CORPUS_CHRISTI_TX BRO 0521 0522 0523 0524 0525 CRP 0521 0522 0523 0524 0525 MEAN 92 90 90 89 89 MEAN 87 85 85 85 86 %>100 8 3 6 5 4 %>100 1 1 0 1 1 %>95 29 17 21 18 18 %>95 9 5 4 4 6 %>90 62 47 49 44 46 %>90 31 21 19 19 25 %>85 88 80 77 73 77 %>85 65 51 50 48 58 %>80 98 96 94 91 94 %>80 89 81 81 78 86 %>75 100 100 99 98 99 %>75 98 96 96 95 98 %>70 100 100 100 100 100 %>70 100 99 100 99 100 DALLAS_TX DENVER_CO DFW 0521 0522 0523 0524 0525 DEN 0521 0522 0523 0524 0525 MEAN 74 76 78 79 81 MEAN 53 53 58 63 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 1 1 4 %>90 0 0 0 0 0 %>85 0 1 6 11 20 %>85 0 0 0 0 0 %>80 5 13 31 41 54 %>80 0 0 0 0 1 %>75 37 55 70 79 85 %>75 0 0 0 1 4 %>70 83 92 94 97 98 %>70 0 0 1 8 19 DES_MOINES_IA EL_PASO_TX DSM 0521 0522 0523 0524 0525 ELP 0521 0522 0523 0524 0525 MEAN 54 59 64 70 74 MEAN 71 71 71 73 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 1 %>90 0 0 0 0 0 %>85 0 0 0 2 6 %>85 0 0 0 0 1 %>80 0 0 0 8 20 %>80 1 1 2 4 11 %>75 0 0 4 25 46 %>75 15 13 18 29 39 %>70 0 4 17 52 74 %>70 66 60 63 74 76 FRESNO_CA GOODLAND_KS FAT 0521 0522 0523 0524 0525 GLD 0521 0522 0523 0524 0525 MEAN 75 76 75 74 73 MEAN 52 55 60 64 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 1 1 1 0 0 %>85 0 0 0 0 0 %>80 11 17 11 5 6 %>80 0 0 0 0 0 %>75 53 66 51 35 34 %>75 0 0 0 1 4 %>70 92 96 90 81 77 %>70 0 0 2 11 22 GREAT_FALLS_MT HOUSTON_TX GTF 0521 0522 0523 0524 0525 HOU 0521 0522 0523 0524 0525 MEAN 49 53 57 60 61 MEAN 84 83 83 84 86 %>100 0 0 0 0 0 %>100 0 0 0 1 2 %>95 0 0 0 0 0 %>95 3 1 3 5 9 %>90 0 0 0 0 0 %>90 16 9 14 18 27 %>85 0 0 0 0 1 %>85 46 33 38 43 53 %>80 0 0 0 0 3 %>80 79 68 69 72 78 %>75 0 0 0 2 8 %>75 96 91 90 91 93 %>70 0 0 0 8 18 %>70 100 99 98 98 98 JACKSON_MS KANSAS_CITY_MO JAN 0521 0522 0523 0524 0525 MCI 0521 0522 0523 0524 0525 MEAN 79 79 79 80 81 MEAN 57 65 69 74 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 1 1 3 %>90 0 0 0 1 2 %>85 8 6 9 13 19 %>85 0 0 1 7 11 %>80 43 39 42 47 55 %>80 0 0 4 21 31 %>75 85 83 82 84 87 %>75 0 2 17 46 61 %>70 99 99 98 98 98 %>70 0 16 43 72 85 LAS_VEGAS_NV LITTLE_ROCK_AR LAS 0521 0522 0523 0524 0525 LIT 0521 0522 0523 0524 0525 MEAN 72 75 76 77 77 MEAN 69 71 74 76 78 %>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 0 2 2 3 4 %>90 0 0 0 0 0 %>85 3 8 9 11 14 %>85 0 0 0 1 4 %>80 11 22 27 30 35 %>80 1 1 6 13 29 %>75 31 48 56 58 62 %>75 8 17 42 57 75 %>70 60 75 83 83 85 %>70 40 64 87 93 97 LOS_ANGELES_CA MIDLAND_TX LAX 0521 0522 0523 0524 0525 MAF 0521 0522 0523 0524 0525 MEAN 66 65 64 63 63 MEAN 71 72 72 73 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 1 0 0 2 %>80 0 0 0 0 0 %>80 4 6 5 5 13 %>75 1 1 0 0 1 %>75 20 27 27 32 46 %>70 13 6 4 4 5 %>70 54 63 65 74 82 MINNEAPOLIS_MN NEW_ORLEANS_LA MSP 0521 0522 0523 0524 0525 MSY 0521 0522 0523 0524 0525 MEAN 54 57 61 67 72 MEAN 83 84 84 84 84 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>95 0 0 1 2 2 %>90 0 0 0 0 0 %>90 2 5 11 14 13 %>85 0 0 0 0 3 %>85 28 35 42 43 42 %>80 0 0 0 2 12 %>80 84 82 80 77 77 %>75 0 0 1 9 32 %>75 99 99 97 95 95 %>70 0 2 7 30 60 %>70 100 100 100 99 100 NORTH_PLATTE_NE OKLAHOMA_CITY_OK LBF 0521 0522 0523 0524 0525 OKC 0521 0522 0523 0524 0525 MEAN 51 54 59 64 67 MEAN 66 69 72 74 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 0 0 0 0 0 %>85 0 0 0 0 0 %>85 0 0 1 1 5 %>80 0 0 0 0 1 %>80 0 1 6 11 25 %>75 0 0 0 2 7 %>75 2 11 26 44 64 %>70 0 0 2 14 28 %>70 19 45 63 83 92 OMAHA_NE PENDLETON_OR OMA 0521 0522 0523 0524 0525 PDT 0521 0522 0523 0524 0525 MEAN 53 59 64 70 74 MEAN 60 62 62 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 0 0 0 1 3 %>85 0 0 0 0 0 %>80 0 0 0 5 15 %>80 0 0 0 0 0 %>75 0 0 2 20 42 %>75 0 0 1 3 2 %>70 0 2 12 50 74 %>70 1 3 7 10 7 PHOENIX_AZ PORTLAND_OR PHX 0521 0522 0523 0524 0525 PDX 0521 0522 0523 0524 0525 MEAN 77 79 80 81 82 MEAN 64 63 62 60 58 %>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 1 2 3 5 7 %>90 0 0 0 0 0 %>85 8 13 17 24 29 %>85 0 0 0 0 0 %>80 31 41 49 60 63 %>80 0 0 1 1 0 %>75 66 74 82 89 89 %>75 2 2 4 3 2 %>70 91 94 97 99 98 %>70 13 11 13 11 8 RAPID_CITY_SD SACRAMENTO_CA RAP 0521 0522 0523 0524 0525 SAC 0521 0522 0523 0524 0525 MEAN 53 53 58 64 67 MEAN 75 72 69 68 69 %>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 1 %>85 1 1 0 0 0 %>80 0 0 0 0 4 %>80 11 5 0 0 1 %>75 0 0 0 3 15 %>75 48 27 6 3 11 %>70 0 0 1 16 36 %>70 88 69 38 30 41 SAINT_LOUIS_MO SALT_LAKE_CITY_UT STL 0521 0522 0523 0524 0525 SLC 0521 0522 0523 0524 0525 MEAN 61 67 72 75 78 MEAN 56 59 64 67 68 %>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 0 0 1 2 6 %>90 0 0 0 0 1 %>85 0 0 3 9 18 %>85 0 0 0 0 2 %>80 0 2 12 26 39 %>80 0 0 1 2 8 %>75 0 11 33 51 66 %>75 0 2 4 9 20 %>70 4 32 60 76 86 %>70 2 8 16 30 39 SAN_ANTONIO_TX SAN_DIEGO_CA SAT 0521 0522 0523 0524 0525 SAN 0521 0522 0523 0524 0525 MEAN 80 79 79 80 82 MEAN 65 65 64 64 64 %>100 0 0 0 0 0 %>100 0 0 0 0 0 %>95 1 0 0 0 1 %>95 0 0 0 0 0 %>90 5 2 2 4 8 %>90 0 0 0 0 0 %>85 21 12 14 18 28 %>85 0 0 0 0 0 %>80 52 41 45 49 62 %>80 0 0 0 0 0 %>75 83 77 80 81 88 %>75 0 0 0 0 0 %>70 97 96 96 96 98 %>70 7 4 4 5 5 SAN_FRANCISCO_CA SEATTLE_WA SFO 0521 0522 0523 0524 0525 SEA 0521 0522 0523 0524 0525 MEAN 60 58 57 57 58 MEAN 61 61 60 57 55 %>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 1 1 0 %>70 2 1 0 0 0 %>70 1 2 4 4 2 SHREVEPORT_LA SIOUX_FALLS_SD SHV 0521 0522 0523 0524 0525 FSD 0521 0522 0523 0524 0525 MEAN 77 76 78 79 81 MEAN 53 56 60 66 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 1 4 %>90 0 0 0 0 0 %>85 3 1 5 12 20 %>85 0 0 0 0 1 %>80 25 13 32 43 55 %>80 0 0 0 0 6 %>75 69 59 75 79 86 %>75 0 0 0 5 23 %>70 95 94 96 97 98 %>70 0 0 3 24 52 SPRINGFIELD_MO TUCSON_AZ SGF 0521 0522 0523 0524 0525 TUS 0521 0522 0523 0524 0525 MEAN 64 68 71 74 76 MEAN 72 73 74 75 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 1 %>90 0 0 0 0 0 %>85 0 0 1 2 5 %>85 0 1 1 3 4 %>80 0 0 6 12 21 %>80 3 7 10 16 19 %>75 1 5 25 40 55 %>75 24 32 38 50 53 %>70 8 35 59 75 85 %>70 68 73 76 85 85 TULSA_OK WICHITA_KS TUL 0521 0522 0523 0524 0525 ICT 0521 0522 0523 0524 0525 MEAN 68 71 73 76 78 MEAN 60 66 69 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 2 %>90 0 0 0 0 0 %>85 0 0 1 4 11 %>85 0 0 0 2 3 %>80 0 1 7 22 37 %>80 0 0 3 11 18 %>75 4 14 33 56 73 %>75 0 3 15 39 53 %>70 29 57 71 86 94 %>70 2 21 42 74 86 YUMA_AZ YUM 0521 0522 0523 0524 0525 MEAN 77 78 78 79 80 %>100 0 0 0 0 0 %>95 0 0 0 0 0 %>90 0 0 0 0 1 %>85 2 2 1 5 12 %>80 21 25 23 36 48 %>75 70 77 78 83 86 %>70 97 99 99 99 99 URL IS WWW.WPC.NCEP.NOAA.GOV $$