Weather WorldBig Draw Reservoir, ID Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Big Draw Reservoir Weather Forecast
| TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
 |  |  |  |  | | | |  |  | | |
| Mostly Cloudy | Partly Sunny | Partly Cloudy | Sunny | Mostly Clear | Mostly Sunny | Mostly Cloudy | Mostly Sunny | Chance of Rain | Chance of Rain | Partly Cloudy | Chance of Rain |
| Lo: 62°FLo: 17°C | Hi: 90°FHi: 32°C | Lo: 60°FLo: 16°C | Hi: 91°FHi: 33°C | Lo: 62°FLo: 17°C | Hi: 95°FHi: 35°C | Lo: 67°FLo: 19°C | Hi: 96°FHi: 36°C | Lo: 66°FLo: 19°C | Hi: 90°FHi: 32°C | Lo: 61°FLo: 16°C | Hi: 86°FHi: 30°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1232 PM MDT Mon Aug 17 2026 
Big Draw Reservoir Radar Loop
Use the map search tool if you want to place a location marker on the radar map...
Big Draw Reservoir Weather Map
Big Draw Reservoir Quick Facts
Big Draw Reservoir Forecast Discussion
Issued: 1040 PM MDT Mon Aug 17 2026
Key Messages
- Terrain Convection Today: Building high pressure suppresses organized forcing, but lingering monsoonal moisture will spark isolated to scattered afternoon showers and storms over the mountains, with a low-end chance of an isolated cell spilling into the Snake Plain. Main threats are gusty outflow winds and brief moderate downpours.
- Mid-to-Late Week Heat Surge: Temperatures will steadily rise, reaching the low-to-mid 90s across lower valleys Thursday and ...