Threemile Slough - Mackenson Weather Forecast
- 55
- 61
Rain
- 55
- 59
Rain
- 50
- 57
Rain Showers
- 46
- 51
Rain
- 40
- 50
Partly Sunny
- 40
- 48
Mostly Sunny
Today 23 Dec Carquinez Strait and Delta
Cloudy. Areas of fog in the morning. Patchy fog early in the afternoon. A slight chance of rain early in the morning. A slight chance of rain late in the afternoon. Highs 58 to 63. Southeast Winds 10 to 15 Mph. Gusts up to 20 Mph increasing to 30 Mph in the afternoon.
Tonight 23 Dec Carquinez Strait and Delta
Rain, windy. Lows around 54. Southeast Winds 15 to 30 Mph. Gusts up to 45 Mph increasing to 55 Mph after midnight.
Threemile Slough - Mackenson Temperature Statistics
December Temperature
Fairfield / Travis Air Force Base (17.4 miles)
Lowest 4 December, 2025
35.2 °FAverage December
46.9 °FHighest 17 December, 2025
65.3 °F
Climate (2020–Present)
Fairfield / Travis Air Force Base (17.4 miles)
Average Low 2020–2025
48.7 °FAverage 2020–2025
60.4 °FAverage High 2020–2025
75 °F