Grass Lake Weather Forecast
- 26
- 47
Chance Rain/Snow
- 25
- 48
Partly Sunny
- 29
- 51
Chance Rain/Snow
- 28
- 45
Rain/Snow Likely
- 25
- 44
Snow Likely
- 23
- 40
Snow
Today 11 Feb North Central and Southeast Siskiyou County
Mostly cloudy until early afternoon then becoming partly cloudy. Patchy fog this morning. A 30 percent chance of rain and snow. Snow level 4500 feet rising to 5500 feet this afternoon. Highs in the lower 40s to lower 50s. East Winds 5 to 10 Mph shifting to the south this afternoon.
Tonight 11 Feb North Central and Southeast Siskiyou County
Partly cloudy. A 10 percent chance of rain and snow in the evening. Lows in the mid 20s to lower 30s. Southwest Winds 5 to 10 Mph.
Grass Lake Temperature Statistics
February Temperature
Montague Siskiyou County Airport (17.4 miles)
Lowest 2 February, 2026
18.6 °FAverage February
40.8 °FHighest 5 February, 2026
66.7 °F
Climate (2021–Present)
Montague Siskiyou County Airport (17.4 miles)
Average Low 2021–2026
39.6 °FAverage 2021–2026
54.2 °FAverage High 2021–2026
69.1 °F