FPUS65 KBOI 182031 SFTBOI IDZ011>016-028>030-ORZ061>064-191100- Tabular State Forecast for Southwest Idaho/Southeast Oregon National Weather Service Boise ID 230 PM MDT Mon May 18 2026 ROWS INCLUDE... Daily predominant daytime weather 6AM-6PM Forecast temperatures...early morning low/daytime high Probability of precipitation nighttime 6PM-6AM/daytime 6AM-6PM - indicates temperatures below zero MM indicates missing data FCST FCST FCST FCST FCST FCST FCST Tue Wed Thu Fri Sat Sun Mon May 19 May 20 May 21 May 22 May 23 May 24 May 25 ...Southwest Idaho Valleys... Boise Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny 41/71 45/74 47/77 48/79 50/86 55/88 54/82 00/00 00/00 00/00 00/00 00/00 00/00 00/10 Caldwell Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny 40/73 43/76 46/78 46/81 48/86 53/88 52/82 00/00 00/00 00/00 00/00 00/00 00/00 00/10 Emmett Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny 40/75 45/78 47/81 48/83 49/89 53/90 53/85 00/00 00/00 00/00 00/00 00/00 00/00 00/10 Marsing Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny 42/73 45/76 48/78 49/80 50/86 55/88 54/82 00/00 00/00 00/00 00/00 00/00 00/00 00/10 Mountain Home Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny 36/72 39/76 43/77 43/81 44/87 50/90 50/85 10/00 00/00 00/00 00/00 00/00 00/00 00/00 Nampa Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny 40/73 43/76 46/78 47/81 48/87 54/88 52/83 00/00 00/00 00/00 00/00 00/00 00/00 00/10 Payette Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy 40/74 44/77 47/80 48/81 49/87 54/88 52/81 00/00 00/00 00/00 00/00 00/00 00/00 00/10 Weiser Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy 39/73 43/77 45/79 46/81 48/86 52/88 50/81 00/00 00/00 00/00 00/00 00/00 00/00 00/10 Wildlife Refuge/Deer Flat /average/ Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny 42/72 45/75 48/78 49/80 50/86 55/88 54/81 00/00 00/00 00/00 00/00 00/00 00/00 00/10 ...West Central and Boise Mountains... Cascade Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy 29/62 33/66 34/69 36/71 38/76 41/77 42/73 10/00 00/00 00/00 00/00 00/00 00/00 10/10 Council Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy 39/69 42/72 43/76 44/78 46/82 49/83 49/77 00/00 00/00 00/00 00/00 00/00 00/00 10/10 Idaho City Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny 29/67 33/71 35/74 36/76 37/82 40/84 41/79 10/00 00/00 00/00 00/00 00/00 00/00 00/10 McCall Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy 29/61 33/64 34/67 35/69 38/74 41/75 41/70 10/00 00/00 00/00 00/00 00/00 00/00 10/20 Payette State River Mgmt Area/Crouch near 3500 ft MSL/average/ Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny 35/68 39/72 41/76 42/77 43/83 46/85 47/79 10/00 00/00 00/00 00/00 00/00 00/00 00/10 ...Southeast Oregon... Baker City Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy 32/67 35/69 36/72 38/76 42/82 45/81 42/72 10/00 00/00 00/00 00/00 00/00 00/00 00/20 Burns Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy 31/69 34/73 36/75 38/78 40/82 42/82 40/74 20/00 00/00 00/00 00/00 00/00 00/00 00/10 Rome Airport KREO Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny 32/71 36/76 41/77 42/81 45/86 49/88 47/82 00/00 00/00 00/00 00/00 00/00 00/00 00/10 Jordan Valley/Rome/Owyhee Canyon near 4000 ft MSL/average/ Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny 35/68 39/73 42/75 43/78 46/84 49/86 48/80 00/00 00/00 00/00 00/00 00/00 00/00 00/10 Malheur Wildlife Refuge/Frenchglen near 4000 ft MSL/average/ Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy 34/67 38/71 40/73 41/75 44/79 46/80 44/73 10/00 00/00 00/00 00/00 00/00 00/00 00/10 Ontario Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny 41/74 44/76 48/80 48/81 49/87 54/88 52/81 00/00 00/00 00/00 00/00 00/00 00/00 00/10 Steens Mountain National Recreation Lands near 6000 ft MSL/avg/ Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny 35/60 41/65 43/68 45/70 48/74 49/76 47/69 20/00 00/00 00/00 00/00 00/00 00/00 00/10 ...South Central Idaho... Fairfield Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny 27/62 29/67 32/69 34/71 36/77 39/80 41/77 10/00 00/00 10/10 00/00 00/00 00/00 00/00 Glenns Ferry Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny 37/73 39/78 42/78 43/82 45/88 50/91 50/87 10/00 00/00 10/00 00/00 00/00 00/00 00/00 Gooding Sunny Sunny Sunny Sunny Sunny Sunny Sunny 35/67 36/72 40/74 41/76 42/82 46/85 47/83 00/00 00/00 10/10 00/00 00/00 00/00 00/00 Jerome Sunny Sunny Sunny Sunny Sunny Sunny Sunny 35/66 39/72 43/71 43/75 44/81 49/85 50/83 00/00 00/00 10/10 00/00 00/00 00/00 00/00 Twin Falls Sunny Sunny Sunny Sunny Sunny Sunny Sunny 36/66 39/71 44/71 43/75 47/81 53/84 53/83 00/00 00/00 10/10 00/00 00/00 00/00 00/00 $$