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Weather in City of Fairfax, Virginia for August 2025

Your guide to City of Fairfax weather in August - trends and predictions

    Official Weather Alert ⚠️

  • Flood Watch - See hour by hour.

    • Temperatures

  • The forecast for the first days of August 2025 in City of Fairfax predicts temperatures to be around 30 °F, close to the historical average.

  • In general, the average temperature in City of Fairfax at the beginning of August is 28.4 °F. As the month progressed, temperatures tended to moderately rise, reaching an average of 30.3 °F by the end of August.

    • Rain 🌧️

  • The climate of City of Fairfax in August is notably wet, with an average of 15 rainy days, and a total of 114.4 mm of precipitation.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
16
Dry days
Average rainy days
15
Rainy days
Average snowy days
0
Snow days
Average temperatures
29°/19°
Temperatures
Average wind speed
14 km/h
Avg max wind
Average humidity
67 %
Avg humidity

City of Fairfax Weather August

Move between months or click on a day
July
September
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Weather Alert Heavy rain
25°
2
Partly cloudy
27°
3
Sunny
28°
4
Sunny
29°
5
Sunny
29°
6
Partly cloudy
31°
7
Patchy rain possible
30°
8
Sunny
34°
9
Patchy rain possible
33°
10
Patchy rain possible
34°
11
Patchy rain possible
34°
12
Patchy rain possible
31°
13
Sunny
25°
14
Partly cloudy
29°
15
Sunny
30°
16
Patchy rain possible
26°
17
Light rain shower
30°
18
Patchy light drizzle
30°
19
Light rain shower
25°
20
Partly cloudy
24°
21
Sunny
23°
22
Partly cloudy
26°
23
Sunny
28°
24
Partly cloudy
29°
25
Partly cloudy
32°
26
Patchy light rain
31°
27
Patchy rain possible
33°
28
Sunny
38°
29
Light rain shower
25°
30
Patchy rain possible
23°
31
Fog
30°

Temperatures trend during August in City of Fairfax

See the weather trend as well as the moving average line

August weather in City of Fairfax day by day

Click on a date for more information
July September
Date Weather Temperatures Rain UV More
Aug. 1 Heavy rain
Heavy rain
 25° /18° 101.1 mm 0.4
Aug. 2 Partly cloudy
Partly cloudy
 27° /16° 0 mm 2.3
Aug. 3 Sunny
Sunny
 28° /16° 0 mm 0.1
Aug. 4 Sunny
Sunny
 29° /17° 0 mm 6
Aug. 5 Sunny
Sunny
 29° /18° 0 mm 6
Aug. 6 Partly cloudy
Partly cloudy
 31° /19° 0 mm 6
Aug. 7 Patchy rain possible
Patchy rain possible
 30° /21° 2.3 mm 5
Aug. 8 Sunny
Sunny
 34° /21° 0 mm 7
Aug. 9 Patchy rain possible
Patchy rain possible
 33° /23° 0.5 mm 6
Aug. 10 Patchy rain possible
Patchy rain possible
 34° /22° 1.7 mm 6
Aug. 11 Patchy rain possible
Patchy rain possible
 34° /23° 1.4 mm 6
Aug. 12 Patchy rain possible
Patchy rain possible
 31° /22° 2.5 mm 6
Aug. 13 Sunny
Sunny
 25° /19° 0 mm 6
Aug. 14 Partly cloudy
Partly cloudy
 29° /17° 0 mm 7
Aug. 15 Sunny
Sunny
 30° /18° 0 mm 8
Aug. 16 Patchy rain possible
Patchy rain possible
 26° /19° 0.5 mm 6
Aug. 17 Light rain shower
Light rain shower
 30° /20° 7.3 mm 7
Aug. 18 Patchy light drizzle
Patchy light drizzle
 30° /21° 5 mm 7
Aug. 19 Light rain shower
Light rain shower
 25° /17° 6.8 mm 6
Aug. 20 Partly cloudy
Partly cloudy
 24° /16° 0 mm 6
Aug. 21 Sunny
Sunny
 23° /12° 0 mm 6
Aug. 22 Partly cloudy
Partly cloudy
 26° /14° 0 mm 7
Aug. 23 Sunny
Sunny
 28° /14° 0 mm 7
Aug. 24 Partly cloudy
Partly cloudy
 29° /16° 0 mm 7
Aug. 25 Partly cloudy
Partly cloudy
 32° /16° 0 mm 8
Aug. 26 Patchy light rain
Patchy light rain
 31° /19° 2.4 mm 7
Aug. 27 Patchy rain possible
Patchy rain possible
 33° /21° 1.8 mm 7
Aug. 28 Sunny
Sunny
 38° /22° 2.1 mm 9
Aug. 29 Light rain shower
Light rain shower
 25° /20° 5.2 mm 5
Aug. 30 Patchy rain possible
Patchy rain possible
 23° /19° 0.3 mm 5
Aug. 31 Fog
Fog
 30° /21° 3 mm 7
Next
Important Notice
Our weather forecast for City of Fairfax in August is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the City of Fairfax forecast closer to your planned date for the most up-to-date weather information.
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City of Fairfax in August - FAQ

What are the expected maximum and minimum temperatures in City of Fairfax during August?
During August, expect a variety of temperatures with highs around 29° and lows near 19°, suitable for diverse activities and preferences.
How much rainfall should be expected in City of Fairfax during August?
Significant rainfall exceeding 114.4 mm is expected in City of Fairfax during August, occurring over more than 15 days. Preparing for wet conditions is recommended in your planning.
What are the typical wind conditions in City of Fairfax during August?
The average wind speed in City of Fairfax during August is 14 km/h, suggesting breezy to windy conditions, depending on your activities.

August rainfall patterns in City of Fairfax

Explore the daily rainfall trends and prepare for City of Fairfaxs August weather 💧

UV exposure in City of Fairfax during August

Stay informed about UV levels for safe outdoor activities throughout the month of August ☀️
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Location coordinates Where is City of Fairfax?

Get accurate weather forecasts for City of Fairfax, located at latitude 38.846 and longitude -77.306. Stay updated with localized weather information tailored for City of Fairfax.

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