Modesto Reservoir Weather Forecast
- 56
- 85
Sunny
- 60
- 90
Sunny
- 62
- 95
Mostly Sunny
- 58
- 85
Mostly Sunny
- 56
- 85
Mostly Sunny
- 54
- 81
Mostly Sunny
Today 22 Sep Central Stanislaus County Including Modesto Metro
Sunny. Highs around 85. Northwest Winds up to 10 Mph.
Tonight 22 Sep Central Stanislaus County Including Modesto Metro
Clear. Lows around 56. Northwest Winds up to 10 Mph.
Modesto Reservoir Temperature Statistics
September Temperature
Modesto City-County Airport - Harry Sham Field (16.2 miles)
Lowest 17 September, 2026
52.6 °FAverage September
74.2 °FHighest 10 September, 2026
105.7 °F
Climate (2021–2026)
Modesto City-County Airport - Harry Sham Field (16.2 miles)
Average Low 2021–2026
51.8 °FAverage 2021–2026
63.8 °FAverage High 2021–2026
76.3 °F