Arnold Weather Forecast
- 46
- 59
Increasing Clouds
- 46
- 55
Rain
- 46
- 51
Rain
- 41
- 51
Rain
- 38
- 46
Rain
- 37
- 47
Rain Likely
Today 30 Dec West Slope Northern Sierra Nevada
Sunny. Not as cool. Highs 42 to 57 higher Elevations. 54 to 64 lower Elevations. Prevailing east Winds up to 10 Mph.
Tonight 30 Dec West Slope Northern Sierra Nevada
Mostly cloudy. Lows 27 to 42 higher Elevations. 38 to 50 lower Elevations. Prevailing east Winds up to 10 Mph.
Arnold Temperature Statistics
December Temperature
COLUMBIA (15.5 miles)
Lowest 4 December, 2025
30.2 °FAverage December
47.4 °FHighest 12 December, 2025
73.4 °F
Climate (2020–Present)
COLUMBIA (15.5 miles)
Average Low 2020–2025
46.9 °FAverage 2020–2025
59.8 °FAverage High 2020–2025
73.6 °F