Ashburn · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Ashburn & neighbors — hit play
Every city on the map carries real forecast data from the same models as its city page, refreshed several times a day. The icon is the day's overall look; the number is the afternoon high.
Next 14 days at a glance
from the model forecast
Hottest day
37°
Tue, Sep 1
Coldest night
22°
Thu, Aug 27
Days with precip
9 / 14
of 14 forecast days
Nicest day
Tue, Aug 25
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 22 – Sun 23 Aug
36° 22°
57% precip chance
Sat 29 – Sun 30 Aug
34° 23°
73% precip chance
Sat 5 – Sun 6 Sep
34° 21°
typical range
Sat 12 – Sun 13 Sep
34° 21°
typical range
30 days — Ashburn
14 forecast + 16 climatology
Sat · Today Sunny
33°22°1.2 mm⌄
Wind18 mph SW
Gusts27 mph
UV index10 – Very high
Precip chance57%
Sunrise07:04
Sunset20:10
Sun · Tomorrow Sunny
36°24°4%⌄
Wind7 mph SW
Gusts17 mph
UV index9 – Very high
Precip chance4%
Sunrise07:04
Sunset20:09
Monday 24/8 Mostly cloudy
35°24°8%⌄
Wind11 mph NE
Gusts22 mph
UV index8 – Very high
Precip chance8%
Sunrise07:05
Sunset20:08
Tuesday 25/8 Mostly cloudy
33°24°11%⌄
Wind8 mph N
Gusts16 mph
UV index10 – Very high
Precip chance11%
Sunrise07:06
Sunset20:07
Wednesday 26/8 Sunny
34°23°3.1 mm⌄
Wind13 mph S
Gusts21 mph
UV index8 – Very high
Precip chance60%
Sunrise07:06
Sunset20:06
Thursday 27/8 Mostly cloudy
32°22°7.8 mm⌄
Wind15 mph W
Gusts25 mph
UV index7 – High
Precip chance83%
Sunrise07:07
Sunset20:05
Friday 28/8 Fog
33°22°1.2 mm⌄
Wind7 mph SW
Gusts14 mph
UV index7 – High
Precip chance65%
Sunrise07:07
Sunset20:03
Saturday 29/8 Mostly cloudy
33°23°3.4 mm⌄
Wind7 mph E
Gusts16 mph
UV index7 – High
Precip chance73%
Sunrise07:08
Sunset20:02
Sunday 30/8 Showers
34°24°1.8 mm⌄
Wind10 mph SW
Gusts19 mph
UV index8 – Very high
Precip chance57%
Sunrise07:09
Sunset20:01
Monday 31/8 Showers
32°24°2.6 mm⌄
Wind11 mph SE
Gusts24 mph
UV index7 – High
Precip chance69%
Sunrise07:09
Sunset20:00
Tuesday 1/9 Sunny
37°24°0.6 mm⌄
Wind13 mph SW
Gusts26 mph
UV index9 – Very high
Precip chance36%
Sunrise07:10
Sunset19:58
Wednesday 2/9 Showers
37°26°3.8 mm⌄
Wind12 mph SW
Gusts25 mph
UV index9 – Very high
Precip chance63%
Sunrise07:10
Sunset19:57
Thursday 3/9 Sunny
37°24°2.9 mm⌄
Wind9 mph NW
Gusts15 mph
UV index9 – Very high
Precip chance57%
Sunrise07:11
Sunset19:56
Friday 4/9 Sunny
37°23°0.4 mm⌄
Wind10 mph N
Gusts20 mph
UV index9 – Very high
Precip chance36%
Sunrise07:12
Sunset19:55
Saturday 5/9 Rain (climatological)
31°21°3.8 mm⌄
Day≈28–34°
Night≈18–24°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 6/9 Partly cloudy (climatological)
34°23°20%⌄
Day≈31–37°
Night≈20–26°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 7/9 Partly cloudy (climatological)
33°22°20%⌄
Day≈30–36°
Night≈19–25°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Rain (climatological)
33°22°6.7 mm⌄
Day≈30–36°
Night≈19–25°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
32°21°20%⌄
Day≈29–35°
Night≈18–24°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Partly cloudy (climatological)
30°21°20%⌄
Day≈27–33°
Night≈18–24°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Rain (climatological)
31°21°3.6 mm⌄
Day≈28–34°
Night≈18–24°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
31°21°20%⌄
Day≈28–34°
Night≈18–24°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Partly cloudy (climatological)
34°23°20%⌄
Day≈31–37°
Night≈20–26°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Rain (climatological)
35°24°6.7 mm⌄
Day≈32–38°
Night≈21–27°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
35°23°20%⌄
Day≈32–38°
Night≈20–26°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
31°21°20%⌄
Day≈28–34°
Night≈18–24°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
30°20°6.1 mm⌄
Day≈27–33°
Night≈17–23°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
31°21°20%⌄
Day≈28–34°
Night≈18–24°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
32°22°20%⌄
Day≈29–35°
Night≈19–25°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
33°22°8.0 mm⌄
Day≈30–36°
Night≈19–25°
Precip≈2.5 in / September
(climatological)Typical range for these dates · 1991–2020
How does a 30-day outlook work?
The first 14 days are a live model forecast. The back half of the month shows the typical range for those dates — useful for planning, not a literal prediction.
First 14 days: a real forecast, blended from NBM, ECMWF and GFS runs. Trust it most inside three days; by the second week treat it as a lean, not a promise.
Rest of the month: past day 14 we stop pretending to forecast and switch to the climate corridor — the range those dates have produced over three decades computed directly for Ashburn, with mild week-to-week wiggle.
Good question for this page: "Is late August usually humid in Chicago?" Bad question: "Do I need an umbrella on the 29th?" — three weeks out no one knows, and that's the honest answer.