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Fairfax, VA Weather Forecast
Fairfax, VA Weather Forecast Dated: 453 PM Mon Sep 21 2026
Expect a mild stretch with a mix of sun and clouds and occasional showers over the coming period. moderate humidity and a stable pattern will dominate.
Monday, September 21, 2026
Mid-Morning
66°F 19°C
Partly Cloudy
Mid-Afternoon
75°F 24°C
Overcast
Early-Evening
70°F 21°C
Overcast
Pleasant near 75°F 24°C, partly cloudy in the morning, becoming overcast through the afternoon and evening, with lower humidity and steady pressure.
Tuesday, September 22, 2026
Mid-Morning
63°F 17°C
Light Showers
Mid-Afternoon
62°F 16°C
Light Showers
Early-Evening
59°F 15°C
Light Showers
Mildly cool near 62°F 16°C, persistent showers off and on through the day, with steady humidity and steady pressure. Winds out of the ENE at 11 mph 18 km/h. Gusts up to 28 mph 44 km/h.
Wednesday, September 23, 2026
Mid-Morning
55°F 13°C
Overcast
Mid-Afternoon
61°F 16°C
Overcast
Early-Evening
61°F 16°C
Overcast
Comfortable at 61°F 16°C, overcast throughout the day, with lower humidity and steady pressure. Winds switching from the NE to the ENE at 10 mph 16 km/h. Gusts up to 21 mph 34 km/h.
Thursday, September 24, 2026
Mid-Morning
56°F 13°C
Overcast
Mid-Afternoon
65°F 18°C
Partly Cloudy
Early-Evening
60°F 16°C
Overcast
Cool with a high near 65°F 18°C, overcast in the morning, cloudy in the afternoon, and overcast this evening, with steady humidity and steady pressure. Winds ENE at 10 mph 15 km/h.
Friday, September 25, 2026
Mid-Morning
54°F 12°C
Sunny
Mid-Afternoon
71°F 22°C
Sunny
Early-Evening
64°F 18°C
Sunny
Mild with a high of 71°F 22°C, sunny throughout the day, with steady humidity and steady pressure. Winds swinging from the N to the NNW at 7 mph 11 km/h.
Saturday, September 26, 2026
Mid-Morning
57°F 14°C
Partly Cloudy
Mid-Afternoon
73°F 23°C
Sunny
Early-Evening
67°F 19°C
Sunny
Pleasant near 73°F 23°C, sunny throughout the day, with lower humidity and steady pressure.
Sunday, September 27, 2026
Mid-Morning
60°F 16°C
Sunny
Mid-Afternoon
75°F 24°C
Overcast
Early-Evening
69°F 21°C
Sunny
Comfortable with temperatures reaching 75°F 24°C, sunny in the morning, becoming partly cloudy through the afternoon and evening, with lower humidity and steady pressure.
Monday, September 28, 2026
Mid-Morning
63°F 17°C
Overcast
Mid-Afternoon
77°F 25°C
Sunny
Early-Evening
72°F 22°C
Cloudy
Enjoyable around 77°F 25°C, overcast in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure.
Tuesday, September 29, 2026
Mid-Morning
65°F 18°C
Sunny
Mid-Afternoon
80°F 27°C
Sunny
Early-Evening
73°F 23°C
Sunny
Warm temperatures up to 80°F 27°C, partly cloudy in the morning, becoming sunny through the afternoon and evening, with steady humidity and steady pressure.
Wednesday, September 30, 2026
Mid-Morning
65°F 19°C
Partly Cloudy
Mid-Afternoon
81°F 27°C
Sunny
Early-Evening
74°F 23°C
Overcast
Very warm with a high of 81°F 27°C, sunny in the morning, partly cloudy in the afternoon, and cloudy this evening, with steady humidity and steady pressure.
Thursday, October 1, 2026
Mid-Morning
67°F 19°C
Scattered Showers
Mid-Afternoon
76°F 24°C
Overcast
Early-Evening
71°F 22°C
Overcast
Pleasant near 76°F 24°C, scattered downpours possible, with lower humidity and steady pressure.
Friday, October 2, 2026
Mid-Morning
64°F 18°C
Overcast
Mid-Afternoon
77°F 25°C
Overcast
Early-Evening
71°F 22°C
Sunny
Comfortable with temperatures reaching 77°F 25°C, overcast through the afternoon, turning partly cloudy this evening, with lower humidity and barometric pressure falling.
Saturday, October 3, 2026
Mid-Morning
61°F 16°C
Scattered Showers
Mid-Afternoon
63°F 17°C
Sunny
Early-Evening
64°F 18°C
Sunny
Refreshing around 63°F 17°C, periods of heavy rain and gusty conditions, with lower humidity and steady pressure. Winds shifting from the NW to the NNW at 11 mph 16 km/h. Gusts up to 22 mph 35 km/h.
Sunday, October 4, 2026
Mid-Morning
50°F 10°C
Sunny
Mid-Afternoon
62°F 16°C
Sunny
Early-Evening
58°F 15°C
Overcast
Mildly cool near 62°F 16°C, partly cloudy in the morning, sunny in the afternoon, and cloudy this evening, with lower humidity and steady pressure. Winds turning from the NNW to the NNE at 6 mph 10 km/h.
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