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
39°
Wed, Sep 2
Coldest night
16°
Sat, Sep 12
Days with precip
7 / 14
of 14 forecast days
Nicest day
Thu, Sep 10
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
27° 19°
72% precip chance
Sat 12 – Sun 13 Sep
30° 16°
83% precip chance
Sat 19 – Sun 20 Sep
28° 18°
typical range
Sat 26 – Sun 27 Sep
28° 18°
typical range
30 days — Glen Allen
14 forecast + 16 climatology
Tue · Today Sunny
38°22°4%⌄
Wind5 mph SW
Gusts15 mph
UV index9 – Very high
Precip chance4%
Sunrise06:40
Sunset19:39
Wed · Tomorrow Sunny
39°24°6.8 mm⌄
Wind10 mph NW
Gusts24 mph
UV index8 – Very high
Precip chance60%
Sunrise06:41
Sunset19:38
Thursday 3/9 Mostly cloudy
39°23°0.6 mm⌄
Wind8 mph S
Gusts25 mph
UV index8 – High
Precip chance36%
Sunrise06:42
Sunset19:36
Friday 4/9 Sunny
39°22°6.6 mm⌄
Wind16 mph SW
Gusts30 mph
UV index8 – Very high
Precip chance63%
Sunrise06:42
Sunset19:35
Saturday 5/9 Fog
27°21°1.8 mm⌄
Wind7 mph N
Gusts12 mph
UV index6 – High
Precip chance72%
Sunrise06:43
Sunset19:33
Sunday 6/9 Partly cloudy
27°19°9%⌄
Wind7 mph NE
Gusts18 mph
UV index7 – High
Precip chance9%
Sunrise06:44
Sunset19:32
Monday 7/9 Showers
25°19°1.0 mm⌄
Wind5 mph E
Gusts13 mph
UV index5 – Moderate
Precip chance61%
Sunrise06:45
Sunset19:30
Tuesday 8/9 Mostly cloudy
25°18°23%⌄
Wind6 mph S
Gusts20 mph
UV index6 – High
Precip chance23%
Sunrise06:46
Sunset19:29
Wednesday 9/9 Showers
31°19°7.9 mm⌄
Wind10 mph SW
Gusts30 mph
UV index7 – High
Precip chance81%
Sunrise06:47
Sunset19:27
Thursday 10/9 Partly cloudy
21°18°25%⌄
Wind12 mph N
Gusts26 mph
UV index5 – Moderate
Precip chance25%
Sunrise06:47
Sunset19:26
Friday 11/9 Mostly cloudy
20°17°9.5 mm⌄
Wind12 mph N
Gusts29 mph
UV index5 – Moderate
Precip chance89%
Sunrise06:48
Sunset19:24
Saturday 12/9 Mostly cloudy
21°16°3.8 mm⌄
Wind9 mph N
Gusts27 mph
UV index5 – Moderate
Precip chance83%
Sunrise06:49
Sunset19:23
Sunday 13/9 Mostly cloudy
30°19°12%⌄
Wind7 mph N
Gusts18 mph
UV index7 – High
Precip chance12%
Sunrise06:50
Sunset19:21
Monday 14/9 Sunny
33°21°4%⌄
Wind6 mph NE
Gusts9 mph
UV index8 – Very high
Precip chance4%
Sunrise06:51
Sunset19:20
Tuesday 15/9 Rain (climatological)
31°21°6.4 mm⌄
Day≈28–34°
Night≈18–24°
Precip≈3.3 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≈3.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
31°21°20%⌄
Day≈28–34°
Night≈18–24°
Precip≈3.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Rain (climatological)
30°20°5.5 mm⌄
Day≈27–33°
Night≈17–23°
Precip≈3.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
28°19°20%⌄
Day≈25–31°
Night≈16–22°
Precip≈3.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
26°18°20%⌄
Day≈23–29°
Night≈15–21°
Precip≈3.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Rain (climatological)
28°19°8.3 mm⌄
Day≈25–31°
Night≈16–22°
Precip≈3.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
30°20°20%⌄
Day≈27–33°
Night≈17–23°
Precip≈3.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Partly cloudy (climatological)
32°22°20%⌄
Day≈29–35°
Night≈19–25°
Precip≈3.3 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Rain (climatological)
33°22°9.4 mm⌄
Day≈30–36°
Night≈19–25°
Precip≈3.3 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
32°21°20%⌄
Day≈29–35°
Night≈18–24°
Precip≈3.3 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Partly cloudy (climatological)
28°19°20%⌄
Day≈25–31°
Night≈16–22°
Precip≈3.3 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Rain (climatological)
27°18°5.5 mm⌄
Day≈24–30°
Night≈15–21°
Precip≈3.3 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
28°19°20%⌄
Day≈25–31°
Night≈16–22°
Precip≈3.3 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Partly cloudy (climatological)
28°19°20%⌄
Day≈25–31°
Night≈16–22°
Precip≈3.3 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 30/9 Rain (climatological)
30°20°8.9 mm⌄
Day≈27–33°
Night≈17–23°
Precip≈3.3 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.