Weather WorldWashington County, ID Weather Forecast
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Washington County Weather Forecast
| TONIGHT | SUNDAY | SUNDAY NIGHT | MONDAY | MONDAY NIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY |
 |  | | |  |  | |  |  | |  | |
| Partly Cloudy | Sunny | Partly Cloudy | Mostly Sunny | Increasing Clouds | Partly Sunny | Clouds | Chance of Showers | Chance of Showers | Chance of Showers | Rain Showers | Chance of Showers |
| Lo: 41°FLo: 5°C | Hi: 68°FHi: 20°C | Lo: 41°FLo: 5°C | Hi: 70°FHi: 21°C | Lo: 45°FLo: 7°C | Hi: 71°FHi: 22°C | Lo: 46°FLo: 8°C | Hi: 71°FHi: 22°C | Lo: 48°FLo: 9°C | Hi: 67°FHi: 19°C | Lo: 45°FLo: 7°C | Hi: 60°FHi: 16°C |
| POP: 20% | POP: 40% | POP: 50% | POP: 60% | POP: 40% |
POP = Probability of Precipitation.
Weather Outlook Updated: 230 PM MDT Sat Oct 17 2026 
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Issued: 244 PM MDT Sat Oct 17 2026
Key Messages
- Warm and dry conditions through Tuesday with high temperatures 5 to 15 degrees above normal.
- Chance of precipitation increases Wednesday through Friday with cooler temperatures by the end of the week.
Aviation
/18Z Saturday through Sunday/... Issued 1154 AM MDT SAT OCT 17 2026 VFR under thin high clouds. Locally reduced visibility due to smoke from wild/prescribed fires across the region. Surface winds: SE-SW 5-15 kt, local gusts up to 20 kt in lower Snake Plain through 20Z. Winds alof...