Allendale · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Allendale & 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°
Sat, Sep 5
Coldest night
22°
Mon, Aug 31
Days with precip
6 / 14
of 14 forecast days
Nicest day
Fri, Sep 11
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 5 – Sun 6 Sep
37° 24°
66% precip chance
Sat 12 – Sun 13 Sep
35° 23°
71% precip chance
Sat 19 – Sun 20 Sep
30° 20°
typical range
Sat 26 – Sun 27 Sep
31° 21°
typical range
30 days — Allendale
14 forecast + 16 climatology
Mon · Today Partly cloudy
34°22°0.3 mm⌄
Wind9 mph SE
Gusts17 mph
UV index9 – Very high
Precip chance32%
Sunrise06:59
Sunset19:51
Tue · Tomorrow Sunny
35°24°9%⌄
Wind9 mph S
Gusts18 mph
UV index10 – Very high
Precip chance9%
Sunrise06:59
Sunset19:50
Wednesday 2/9 Mostly cloudy
35°24°9%⌄
Wind10 mph S
Gusts18 mph
UV index9 – Very high
Precip chance9%
Sunrise07:00
Sunset19:49
Thursday 3/9 Sunny
36°24°4%⌄
Wind13 mph SE
Gusts21 mph
UV index9 – Very high
Precip chance4%
Sunrise07:01
Sunset19:48
Friday 4/9 Sunny
37°24°5%⌄
Wind13 mph S
Gusts23 mph
UV index9 – Very high
Precip chance5%
Sunrise07:01
Sunset19:46
Saturday 5/9 Sunny
37°24°4%⌄
Wind10 mph S
Gusts23 mph
UV index9 – Very high
Precip chance4%
Sunrise07:02
Sunset19:45
Sunday 6/9 Mostly cloudy
36°25°1.9 mm⌄
Wind6 mph S
Gusts15 mph
UV index8 – Very high
Precip chance66%
Sunrise07:03
Sunset19:44
Monday 7/9 Showers
32°23°3.6 mm⌄
Wind9 mph SE
Gusts19 mph
UV index8 – Very high
Precip chance74%
Sunrise07:03
Sunset19:42
Tuesday 8/9 Fog
32°23°27.4 mm⌄
Wind6 mph E
Gusts17 mph
UV index7 – High
Precip chance87%
Sunrise07:04
Sunset19:41
Wednesday 9/9 Showers
33°23°7.8 mm⌄
Wind9 mph N
Gusts13 mph
UV index7 – High
Precip chance84%
Sunrise07:05
Sunset19:40
Thursday 10/9 Sunny
34°24°0.3 mm⌄
Wind7 mph E
Gusts16 mph
UV index8 – Very high
Precip chance36%
Sunrise07:05
Sunset19:38
Friday 11/9 Sunny
35°24°11%⌄
Wind7 mph S
Gusts14 mph
UV index8 – Very high
Precip chance11%
Sunrise07:06
Sunset19:37
Saturday 12/9 Sunny
35°25°3.1 mm⌄
Wind8 mph NE
Gusts15 mph
UV index8 – Very high
Precip chance59%
Sunrise07:06
Sunset19:36
Sunday 13/9 Showers
29°23°4.4 mm⌄
Wind15 mph NE
Gusts23 mph
UV index7 – High
Precip chance71%
Sunrise07:07
Sunset19:34
Monday 14/9 Rain (climatological)
31°21°5.3 mm⌄
Day≈28–34°
Night≈18–24°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
34°23°20%⌄
Day≈31–37°
Night≈20–26°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Partly cloudy (climatological)
34°23°20%⌄
Day≈31–37°
Night≈20–26°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Rain (climatological)
33°22°13.4 mm⌄
Day≈30–36°
Night≈19–25°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
29°20°20%⌄
Day≈26–32°
Night≈17–23°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Partly cloudy (climatological)
30°20°20%⌄
Day≈27–33°
Night≈17–23°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Rain (climatological)
29°20°5.7 mm⌄
Day≈26–32°
Night≈17–23°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
32°22°20%⌄
Day≈29–35°
Night≈19–25°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Partly cloudy (climatological)
35°24°20%⌄
Day≈32–38°
Night≈21–27°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 23/9 Rain (climatological)
36°24°5.3 mm⌄
Day≈33–39°
Night≈21–27°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 24/9 Partly cloudy (climatological)
33°23°20%⌄
Day≈30–36°
Night≈20–26°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 25/9 Partly cloudy (climatological)
32°22°20%⌄
Day≈29–35°
Night≈19–25°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 26/9 Rain (climatological)
30°21°6.7 mm⌄
Day≈27–33°
Night≈18–24°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 27/9 Partly cloudy (climatological)
31°21°20%⌄
Day≈28–34°
Night≈18–24°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 28/9 Partly cloudy (climatological)
32°22°20%⌄
Day≈29–35°
Night≈19–25°
Precip≈4.2 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 29/9 Rain (climatological)
34°23°12.4 mm⌄
Day≈31–37°
Night≈20–26°
Precip≈4.2 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 Allendale, 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.