Weather WorldSimpson Lake, WA 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Simpson Lake Weather Forecast
Simpson Lake, WA Weather Forecast Date: 207 PM PDT Fri Oct 23 2026
Weather forecast for Simpson Lake, WA
Tonight Lo: 26°F Lo: -3°C |
Tonight... Mostly clear. Lows in the lower 20s to lower 30s. Gusts up to 20 mph in the evening. |
Sat Hi: 50°FHi: 10°C Lo: 39°F Lo: 4°C |
Saturday... Mostly sunny. Highs in the upper 40s to mid 50s. |
Sun Hi: 55°FHi: 13°C Lo: 39°F Lo: 4°C |
Sunday... Mostly cloudy. Highs in the 50s. |
Mon Hi: 55°FHi: 13°C Lo: 36°F Lo: 2°C |
Monday... Partly sunny with a chance of rain and mountain snow showers. Highs in the 50s. Chance of precipitation 30%. |
Tue Hi: 53°FHi: 12°C Lo: 35°F Lo: 2°C |
Tuesday... Mostly cloudy. A 20% chance of rain showers. Lows in the lower 30s to lower 40s. Highs in the lower to mid 50s. |
| Wed Hi: 50°FHi: 10°C Lo: 30°F Lo: -1°C |
Wednesday... Partly sunny with a chance of rain and mountain snow showers. Highs in the upper 40s to lower 50s. Chance of precipitation 40%. |
| Thu Hi: 53°FHi: 12°C Lo: 30°F Lo: -1°C |
Thursday... Partly cloudy. A chance of rain and mountain snow showers. Lows in the upper 20s to mid 30s. Highs in the lower to mid 50s. Chance of precipitation 20%. |
Simpson Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...