Tulloch Reservoir Weather Forecast
- 48
- 58
Mostly Cloudy
- 48
- 60
Cloudy
- 43
- 58
Partly Sunny
- 41
- 56
Mostly Sunny
- 42
- 57
Partly Sunny
- 43
- 59
Mostly Cloudy
Today 20 Jan Northern San Joaquin Valley
Mostly cloudy. Widespread fog. Locally dense until late afternoon. Haze through the day. Patchy fog late in the afternoon. Highs 53 to 59. Light Winds.
Tonight 20 Jan Northern San Joaquin Valley
Mostly cloudy. Patchy fog in the evening. Widespread fog after midnight. Lows around 46. Light Winds.
Tulloch Reservoir Temperature Statistics
January Temperature
Modesto City-County Airport - Harry Sham Field (27.3 miles)
Lowest 10 January, 2026
32 °FAverage January
49.2 °FHighest 6 January, 2026
63 °F
Climate (2021–Present)
Modesto City-County Airport - Harry Sham Field (27.3 miles)
Average Low 2021–2026
51.5 °FAverage 2021–2026
63.4 °FAverage High 2021–2026
75.9 °F