Grassy Lake Weather Forecast
- 33
- 52
Partly Sunny
- 39
- 60
Mostly Sunny
- 38
- 61
Partly Sunny
- 36
- 53
Partly Sunny
- 35
- 49
Partly Sunny
- 36
- 53
Partly Sunny
- 39
- 57
Partly Sunny
Today 22 Apr Northeastern Mendocino Interior
Mostly cloudy then becoming partly cloudy in the late morning and early afternoon then becoming mostly cloudy. Patchy valley fog in the morning. Slight chance of snow Showers in the morning. Slight chance of rain Showers through the day. Snow level 4000 feet rising to 5000 feet in the afternoon. Highs 50 to 65.
Tonight 22 Apr Northeastern Mendocino Interior
Mostly cloudy early in the evening then clearing. Patchy valley fog and frost overnight. Lows 31 to 41.
Grassy Lake Temperature Statistics
April Temperature
Ukiah Municipal Airport (37.9 miles)
Lowest 17 April, 2026
35.7 °FAverage April
57.6 °FHighest 5 April, 2026
84.7 °F
Climate (2021–Present)
Ukiah Municipal Airport (37.9 miles)
Average Low 2021–2026
47.2 °FAverage 2021–2026
61 °FAverage High 2021–2026
76.3 °F