River Run Weather Forecast
- 42
- 56
Mostly Cloudy
- 45
- 59
Mostly Cloudy
- 45
- 61
Mostly Cloudy
- 43
- 61
Partly Sunny
- 43
- 59
Partly Sunny
- 42
- 60
Mostly Cloudy
Today 19 Jan Southern Sacramento Valley
Mostly cloudy in the morning then becoming partly cloudy. Widespread fog. Locally dense in the morning. Haze through the day. Areas of dense fog. Locally dense early in the afternoon. Highs 54 to 61. Light Winds.
Tonight 19 Jan Southern Sacramento Valley
Mostly clear in the evening then becoming mostly cloudy. Patchy fog in the evening. Widespread fog. Locally dense after midnight. Lows 38 to 44. Light Winds.
River Run Temperature Statistics
January Temperature
Sacramento Mather Airport (7.5 miles)
Lowest 9 January, 2026
30.2 °FAverage January
50 °FHighest 15 January, 2026
66.2 °F
Climate (2021–Present)
Sacramento Mather Airport (7.5 miles)
Average Low 2021–2026
48.7 °FAverage 2021–2026
61.7 °FAverage High 2021–2026
75.3 °F