Fairfax Weather Forecast
- 75
- 89
Thunderstorms Likely
- 74
- 81
Thunderstorms
- 76
- 85
Thunderstorms Likely
- 77
- 89
Thunderstorms Likely
- 77
- 89
Chance Thunderstorms
- 77
- 90
Thunderstorms Likely
Today 4 Jul South Central Duval
Mostly sunny. Patchy fog in the morning. A slight chance of Showers and Thunderstorms in the Morning, then Showers and Thunderstorms likely in the afternoon. Highs in the upper 80s. North Winds 5 to 10 Mph, becoming northeast with Gusts up to 20 Mph in the afternoon. Chance of rain 70 percent.
Tonight 4 Jul South Central Duval
Mostly cloudy. Lows in the mid 70s. Light and variable Winds.
Fairfax Temperature Statistics
July Temperature
Jacksonville Naval Air Station (3.7 miles)
Lowest 1 July, 2025
75 °FAverage July
80.9 °FHighest 1 July, 2025
88 °F
Climate (2020–Present)
Jacksonville Naval Air Station (3.7 miles)
Average Low 2020–2025
65 °FAverage 2020–2025
72.5 °FAverage High 2020–2025
81 °F