Suisun Bay - Mallard Island Weather Forecast
- 67
- 93
Increasing Clouds
- 66
- 84
Chance Rain Showers
- 63
- 81
Chance Rain Showers
- 63
- 84
Sunny
- 65
- 88
Sunny
- 67
- 92
Chance Rain Showers
- 65
- 80
Slight Chance Rain Showers
Today 17 Sep East Bay Interior Valleys
Sunny. Highs in the mid 90s. Northwest Winds 5 to 15 Mph.
Tonight 17 Sep East Bay Interior Valleys
Partly cloudy. Lows in the mid 60s. Southwest Winds 5 to 10 Mph.
Suisun Bay - Mallard Island Temperature Statistics
September Temperature
Concord, Buchanan Field (8.1 miles)
Lowest 4 September, 2025
59 °FAverage September
70.3 °FHighest 1 September, 2025
99 °F
Climate (2020–Present)
Concord, Buchanan Field (8.1 miles)
Average Low 2020–2025
50.8 °FAverage 2020–2025
61.4 °FAverage High 2020–2025
74.6 °F