FPUS65 KBOI 180638 SFTBOI IDZ011>016-028>030-ORZ061>064-191100- Tabular State Forecast for Southwest Idaho/Southeast Oregon National Weather Service Boise ID 1237 AM 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 Mon Tue Wed Thu Fri Sat Sun May 18 May 19 May 20 May 21 May 22 May 23 May 24 ...Southwest Idaho Valleys... Boise Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 38/68 41/71 46/75 47/78 50/80 50/85 53/85 00/00 00/00 00/00 00/00 00/00 00/00 00/00 Caldwell Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 38/69 40/73 44/76 46/79 49/82 49/86 51/85 00/00 00/00 00/00 00/00 00/00 00/00 00/00 Emmett Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 37/72 40/75 46/79 47/82 49/84 50/88 52/88 00/00 00/00 00/00 00/00 00/00 00/00 00/00 Marsing Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 40/69 42/73 46/77 48/79 51/82 51/86 53/86 00/00 00/00 00/00 00/00 00/00 00/00 00/00 Mountain Home Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 36/68 37/72 40/77 43/79 45/82 45/87 48/87 10/10 00/00 00/00 00/00 00/00 00/00 00/00 Nampa Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 39/69 40/72 44/76 46/79 49/82 49/86 51/86 00/00 00/00 00/00 00/00 00/00 00/00 00/00 Payette Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 40/71 41/74 45/77 48/80 49/83 50/86 51/86 00/00 00/00 00/00 00/00 00/00 00/00 00/00 Weiser Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 39/70 40/73 45/77 47/80 48/82 49/86 50/86 00/00 00/00 00/00 00/00 00/00 00/00 00/00 Wildlife Refuge/Deer Flat /average/ Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 40/69 42/72 46/76 49/78 50/81 51/85 53/85 00/00 00/00 00/00 00/00 00/00 00/00 00/00 ...West Central and Boise Mountains... Cascade Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 27/59 29/62 34/66 35/71 37/72 38/76 40/76 00/10 10/00 00/00 00/00 00/00 00/00 00/00 Council Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 37/67 39/70 43/73 44/77 45/79 46/82 48/82 00/00 00/00 00/00 00/00 00/00 00/00 00/00 Idaho City Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 26/65 29/67 33/71 34/76 37/77 37/82 39/83 10/10 10/00 00/00 00/00 00/00 00/00 00/00 McCall Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 28/56 29/60 33/63 34/69 36/70 38/73 39/74 10/10 10/00 00/00 00/00 00/00 00/00 00/00 Payette State River Mgmt Area/Crouch near 3500 ft MSL/average/ Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 33/66 35/68 40/72 41/77 43/79 43/82 45/83 10/10 10/00 00/00 00/00 00/00 00/00 00/00 ...Southeast Oregon... Baker City Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 31/64 31/68 37/70 38/74 42/77 42/80 43/79 00/10 10/00 00/00 00/00 00/00 00/00 00/00 Burns Ptcldy Sunny Ptcldy Sunny Sunny Sunny Sunny 29/64 30/69 36/73 37/77 39/79 40/81 40/81 00/20 10/00 00/00 00/00 00/00 00/00 00/00 Rome Airport KREO Ptcldy Sunny Ptcldy Sunny Sunny Sunny Sunny 28/65 31/71 38/77 40/80 44/83 45/86 46/87 00/00 00/00 00/00 00/00 00/00 00/00 00/00 Jordan Valley/Rome/Owyhee Canyon near 4000 ft MSL/average/ Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 30/63 34/69 40/74 41/77 45/80 46/84 47/84 00/00 00/00 00/00 00/00 00/00 00/00 00/00 Malheur Wildlife Refuge/Frenchglen near 4000 ft MSL/average/ Ptcldy Sunny Ptcldy Sunny Sunny Sunny Sunny 31/61 33/67 39/71 40/74 43/76 44/79 44/79 00/10 10/00 00/00 00/00 00/00 00/00 00/00 Ontario Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 40/71 41/74 46/77 48/80 50/83 50/86 52/86 00/00 00/00 00/00 00/00 00/00 00/00 00/00 Steens Mountain National Recreation Lands near 6000 ft MSL/avg/ Ptcldy Sunny Ptcldy Sunny Sunny Sunny Sunny 28/53 35/60 41/65 43/69 46/72 48/74 47/75 10/20 10/00 00/00 00/00 00/00 00/00 00/00 ...South Central Idaho... Fairfield Sunny Ptcldy Ptcldy Sunny Sunny Sunny Sunny 26/58 27/62 30/67 33/71 36/72 36/77 39/79 00/10 00/00 00/00 00/00 00/00 00/00 00/00 Glenns Ferry Sunny Sunny Ptcldy Sunny Sunny Sunny Sunny 35/69 38/73 41/78 44/81 45/83 46/89 48/89 10/10 10/00 00/00 00/00 00/00 00/00 00/00 Gooding Sunny Sunny Sunny Sunny Sunny Sunny Sunny 33/62 35/67 38/72 41/75 42/78 43/82 45/83 00/00 00/00 00/00 00/00 00/00 00/00 00/00 Jerome Sunny Sunny Sunny Sunny Sunny Sunny Sunny 32/61 37/65 40/70 43/74 45/77 45/82 48/83 00/00 00/00 00/00 10/00 00/00 00/00 00/00 Twin Falls Sunny Sunny Sunny Sunny Sunny Sunny Sunny 33/61 37/66 41/71 45/74 47/77 49/82 51/83 10/00 00/00 00/00 10/00 00/00 00/00 00/00 $$