San Geronimo Weather Forecast
- 52
- 66
Decreasing Clouds
- 53
- 67
Mostly Cloudy
- 50
- 63
Mostly Cloudy
- 47
- 59
Slight Chance Rain
- 47
- 60
Mostly Sunny
- 47
- 63
Partly Sunny
Today 26 Feb Marin Coastal Range
Mostly cloudy in the morning then becoming partly cloudy. Highs in the mid 60s. Northeast Winds around 5 Mph becoming northwest in the afternoon.
Tonight 26 Feb Marin Coastal Range
Mostly cloudy. Lows in the lower 50s. Northwest Winds 5 to 10 Mph.
San Geronimo Temperature Statistics
February Temperature
Novato / Gnoss Field (10.6 miles)
Lowest 18 February, 2026
35.6 °FAverage February
52.5 °FHighest 2 February, 2026
75.2 °F
Climate (2021–Present)
Novato / Gnoss Field (10.6 miles)
Average Low 2021–2026
46.4 °FAverage 2021–2026
57.4 °FAverage High 2021–2026
72.3 °F