Glen Allen · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Glen Allen & 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
103°
Wed, Sep 2
Coldest night
53°
Sat, Sep 12
Days with precip
4 / 14
of 14 forecast days
Nicest day
Sat, Sep 12
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
86° 69°
76% precip chance
Sat 12 – Sun 13 Sep
85° 53°
typical range
Sat 19 – Sun 20 Sep
84° 62°
typical range
Sat 26 – Sun 27 Sep
80° 62°
typical range
30 days — Glen Allen
14 forecast + 16 climatology
Sun · Today Sunny
91°68°6%⌄
Wind7 mph S
Gusts24 mph
UV index8 – Very high
Precip chance6%
Sunrise06:38
Sunset19:42
Mon · Tomorrow Sunny
98°72°17%⌄
Wind6 mph SW
Gusts22 mph
UV index9 – Very high
Precip chance17%
Sunrise06:39
Sunset19:41
Tuesday 1/9 Mostly cloudy
95°74°0.8 mm⌄
Wind6 mph SW
Gusts14 mph
UV index8 – High
Precip chance47%
Sunrise06:40
Sunset19:39
Wednesday 2/9 Sunny
103°74°0.4 mm⌄
Wind9 mph W
Gusts16 mph
UV index8 – Very high
Precip chance36%
Sunrise06:41
Sunset19:38
Thursday 3/9 Sunny
99°74°3.0 mm⌄
Wind9 mph SW
Gusts13 mph
UV index8 – Very high
Precip chance61%
Sunrise06:42
Sunset19:36
Friday 4/9 Mostly cloudy
90°75°2.8 mm⌄
Wind6 mph SW
Gusts19 mph
UV index7 – High
Precip chance74%
Sunrise06:42
Sunset19:35
Saturday 5/9 Fog
86°72°3.3 mm⌄
Wind6 mph SW
Gusts13 mph
UV index8 – Very high
Precip chance69%
Sunrise06:43
Sunset19:33
Sunday 6/9 Showers
85°69°3.3 mm⌄
Wind6 mph N
Gusts11 mph
UV index7 – High
Precip chance76%
Sunrise06:44
Sunset19:32
Monday 7/9 Mostly cloudy
94°71°0.4 mm⌄
Wind8 mph NE
Gusts22 mph
UV index8 – Very high
Precip chance36%
Sunrise06:45
Sunset19:30
Tuesday 8/9 Mostly cloudy
88°65°16%⌄
Wind7 mph SE
Gusts20 mph
UV index7 – High
Precip chance16%
Sunrise06:46
Sunset19:29
Wednesday 9/9 Mostly cloudy
86°72°28%⌄
Wind10 mph S
Gusts26 mph
UV index7 – High
Precip chance28%
Sunrise06:47
Sunset19:27
Thursday 10/9 Mostly cloudy
85°69°20%⌄
Wind12 mph SW
Gusts27 mph
UV index6 – High
Precip chance20%
Sunrise06:47
Sunset19:26
Friday 11/9 Sunny
78°58°4%⌄
Wind10 mph NW
Gusts19 mph
UV index7 – High
Precip chance4%
Sunrise06:48
Sunset19:24
Saturday 12/9 Sunny
74°53°3%⌄
Wind8 mph NW
Gusts12 mph
UV index6 – High
Precip chance3%
Sunrise06:49
Sunset19:23
Sunday 13/9 Rain (climatological)
85°65°2.3 mm⌄
Day≈80–90°
Night≈59–70°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
85°65°20%⌄
Day≈80–91°
Night≈59–70°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
85°65°20%⌄
Day≈80–91°
Night≈59–70°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Light rain (climatological)
84°64°2.0 mm⌄
Day≈79–90°
Night≈59–70°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
80°61°20%⌄
Day≈74–85°
Night≈56–67°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
76°59°20%⌄
Day≈71–82°
Night≈54–65°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
81°62°3.0 mm⌄
Day≈75–86°
Night≈57–67°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
84°64°20%⌄
Day≈79–90°
Night≈59–70°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
88°67°20%⌄
Day≈83–94°
Night≈61–72°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
89°67°3.4 mm⌄
Day≈84–95°
Night≈62–73°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
87°66°20%⌄
Day≈82–92°
Night≈60–71°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
79°61°20%⌄
Day≈74–85°
Night≈56–67°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Light rain (climatological)
78°60°2.0 mm⌄
Day≈73–83°
Night≈55–66°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
80°62°20%⌄
Day≈74–85°
Night≈56–67°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
80°62°20%⌄
Day≈75–86°
Night≈56–67°
Precip≈1.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Rain (climatological)
84°64°3.2 mm⌄
Day≈79–90°
Night≈59–69°
Precip≈1.2 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 Glen Allen, 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.