FPUS65 KBOI 191837 SFTBOI IDZ011>016-028>030-ORZ061>064-192300- Tabular State Forecast for Southwest Idaho/Southeast Oregon National Weather Service Boise ID 1237 PM MDT Tue May 19 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 Today 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 /70 45/74 46/76 49/80 51/87 55/89 56/86 /00 00/00 00/00 00/00 00/00 00/00 00/00 Caldwell Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny /72 44/75 47/77 47/81 49/87 54/89 54/86 /00 00/00 00/00 00/00 00/00 00/00 00/00 Emmett Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy /75 45/78 47/81 49/83 50/90 54/91 55/89 /00 00/00 00/00 00/00 00/00 00/00 00/00 Marsing Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny /73 46/75 48/77 50/81 51/87 56/90 56/86 /00 00/00 00/00 00/00 00/00 00/00 00/00 Mountain Home Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny /72 40/76 45/77 44/81 45/88 50/90 52/89 /00 00/00 00/00 00/00 00/00 00/00 00/00 Nampa Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny /72 44/75 48/77 48/81 49/87 54/89 54/87 /00 00/00 00/00 00/00 00/00 00/00 00/00 Payette Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy /74 45/77 48/79 49/82 50/88 54/90 54/86 /00 00/00 00/00 00/00 00/00 00/00 00/00 Weiser Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy /73 46/76 46/79 48/82 49/88 53/90 53/85 /00 00/00 00/00 00/00 00/00 00/00 00/00 Wildlife Refuge/Deer Flat /average/ Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy /72 46/75 49/76 50/81 51/87 56/89 56/86 /00 00/00 00/00 00/00 00/00 00/00 00/00 ...West Central and Boise Mountains... Cascade Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy /62 32/65 34/70 36/72 39/77 41/79 43/76 /00 10/00 00/00 00/00 00/00 00/00 00/00 Council Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy /69 44/72 43/75 45/78 47/83 50/85 51/81 /00 10/00 00/00 00/00 00/00 00/00 00/00 Idaho City Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny /67 32/70 33/75 37/77 38/83 41/85 42/83 /00 00/00 00/00 00/00 00/00 00/00 00/00 McCall Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy /60 32/63 34/67 36/70 39/75 41/76 43/73 /00 10/10 00/00 00/00 00/00 00/00 00/10 Payette State River Mgmt Area/Crouch near 3500 ft MSL/average/ Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny /68 38/71 40/76 43/78 43/84 46/85 48/83 /00 00/00 00/00 00/00 00/00 00/00 00/00 ...Southeast Oregon... Baker City Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy /67 36/69 37/73 39/77 43/83 46/84 45/76 /00 10/00 00/00 00/00 00/00 10/00 00/10 Burns Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy /69 37/72 36/73 38/78 41/82 43/83 43/77 /00 00/00 00/00 00/00 00/00 00/00 00/00 Rome Airport KREO Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny /70 36/75 39/76 42/81 46/87 49/88 49/86 /00 00/00 00/00 00/00 00/00 00/00 00/00 Jordan Valley/Rome/Owyhee Canyon near 4000 ft MSL/average/ Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny /68 38/72 40/73 43/78 46/84 50/86 50/84 /00 00/00 00/00 00/00 00/00 00/00 00/00 Malheur Wildlife Refuge/Frenchglen near 4000 ft MSL/average/ Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy /66 39/70 39/71 42/76 45/80 46/81 46/76 /00 00/00 00/00 00/00 00/00 00/00 00/00 Ontario Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy /73 46/76 49/78 49/82 50/88 55/90 55/86 /00 00/00 00/00 00/00 00/00 00/00 00/00 Steens Mountain National Recreation Lands near 6000 ft MSL/avg/ Sunny Ptcldy Sunny Sunny Sunny Sunny Ptcldy /60 41/64 40/65 45/71 49/74 50/76 50/72 /00 00/10 00/00 00/00 00/00 10/00 00/00 ...South Central Idaho... Fairfield Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny /62 29/66 34/68 34/72 36/78 40/80 41/80 /00 00/00 00/00 00/00 00/00 00/00 00/00 Glenns Ferry Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny /72 40/77 44/78 44/82 46/89 50/91 51/91 /00 00/00 00/00 00/00 00/00 00/00 00/00 Gooding Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny /66 38/71 42/72 41/77 43/83 47/86 48/85 /00 00/00 00/00 00/00 00/00 00/00 00/00 Jerome Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny /66 40/71 43/70 44/75 45/82 50/85 50/85 /00 00/00 10/10 00/00 00/00 00/00 00/00 Twin Falls Sunny Ptcldy Sunny Sunny Sunny Sunny Sunny /65 42/70 45/70 44/75 47/82 53/84 54/85 /00 00/00 20/00 00/00 00/00 00/00 00/10 $$