Arnold Weather Forecast
- 38
- 58
Decreasing Clouds
- 35
- 56
Mostly Sunny
- 41
- 58
Mostly Sunny
- 45
- 64
Partly Sunny
- 42
- 64
Chance Rain
- 41
- 59
Chance Rain
Today 15 Apr West Slope Northern Sierra Nevada
Mostly sunny in the morning then becoming partly cloudy. Widespread frost early in the morning. Highs 40 to 55 higher Elevations. 53 to 63 lower Elevations. Prevailing southeast Winds up to 10 Mph shifting to the southwest in the afternoon. Gusts up to 30 Mph. Over Ridges. Prevailing southwest Winds 5 to 15 Mph increasing to 10 to 25 Mph in the afternoon.
Tonight 15 Apr West Slope Northern Sierra Nevada
Partly cloudy in the evening then becoming mostly cloudy. At lower Elevations, a slight chance of rain in the Evening, then a chance of rain after midnight. At higher Elevations, a chance of rain in the Evening, then a chance of rain and snow after Midnight, widespread frost after midnight. Lows 23 to 38 higher Elevations. 33 to 45 lower Elevations. No snow accumulation lower Elevations. Up to 1 inch higher Elevations. Snow level 7000 feet. Prevailing southwest Winds up to 10 Mph with Gusts to around 30 Mph. Except southwest up to 20 Mph over Ridges.
Arnold Temperature Statistics
April Temperature
COLUMBIA (15.5 miles)
Lowest 3 April, 2026
37.4 °FAverage April
57.1 °FHighest 5 April, 2026
78.8 °F
Climate (2021–Present)
COLUMBIA (15.5 miles)
Average Low 2021–2026
47.1 °FAverage 2021–2026
60 °FAverage High 2021–2026
73.8 °F