Mount Vernon Weather Forecast
- 28
- 51
Increasing Clouds
- 11
- 45
Mostly Cloudy
- 15
- 22
Wintry Mix
- 16
- 23
Wintry Mix Likely
- 7
- 26
Mostly Sunny
- 8
- 26
Partly Sunny
Today 22 Jan Charles
Sunny. Highs in the lower 50s. Southwest Winds 5 to 10 Mph, becoming west with Gusts up to 20 Mph in the afternoon.
Tonight 22 Jan Charles
Partly cloudy. Lows in the mid 30s. Southwest Winds around 10 Mph with Gusts up to 20 Mph.
Mount Vernon Temperature Statistics
January Temperature
Fort Belvoir (3.7 miles)
Lowest 19 January, 2026
18.1 °FAverage January
38.2 °FHighest 7 January, 2026
64 °F
Climate (2021–Present)
Fort Belvoir (3.7 miles)
Average Low 2021–2026
47.8 °FAverage 2021–2026
58 °FAverage High 2021–2026
68.2 °F