Swift Trail Junction · first 14 days — live forecast · rest of month — climate corridor
🗺️ 14-day forecast map
Swift Trail Junction & 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
42°
Mon, Aug 24
Coldest night
22°
Sun, Sep 6
Days with precip
2 / 14
of 14 forecast days
Nicest day
Wed, Sep 2
mild, dry, light wind
The next 4 weekends
plan ahead
Sat 29 – Sun 30 Aug
37° 24°
36% precip chance
Sat 5 – Sun 6 Sep
28° 22°
75% precip chance
Sat 12 – Sun 13 Sep
32° 22°
typical range
Sat 19 – Sun 20 Sep
30° 21°
typical range
30 days — Swift Trail Junction
14 forecast + 16 climatology
Mon · Today Sunny
42°27°3%⌄
Wind11 mph NW
Gusts18 mph
UV index11 – Very high
Precip chance3%
Sunrise05:48
Sunset18:53
Tue · Tomorrow Sunny
38°26°1%⌄
Wind8 mph NW
Gusts14 mph
UV index11 – Very high
Precip chance1%
Sunrise05:49
Sunset18:52
Wednesday 26/8 Sunny
38°27°0.3 mm⌄
Wind6 mph NW
Gusts16 mph
UV index11 – Very high
Precip chance17%
Sunrise05:49
Sunset18:51
Thursday 27/8 Sunny
38°27°0.2 mm⌄
Wind23 mph N
Gusts23 mph
UV index10 – Very high
Precip chance17%
Sunrise05:50
Sunset18:50
Friday 28/8 Sunny
38°25°3%⌄
Wind9 mph SE
Gusts20 mph
UV index9 – Very high
Precip chance3%
Sunrise05:51
Sunset18:49
Saturday 29/8 Sunny
37°26°3%⌄
Wind14 mph NW
Gusts24 mph
UV index9 – Very high
Precip chance3%
Sunrise05:51
Sunset18:47
Sunday 30/8 Sunny
37°24°0.6 mm⌄
Wind13 mph SW
Gusts16 mph
UV index9 – Very high
Precip chance36%
Sunrise05:52
Sunset18:46
Monday 31/8 Showers
34°25°0.9 mm⌄
Wind15 mph W
Gusts23 mph
UV index8 – Very high
Precip chance40%
Sunrise05:53
Sunset18:45
Tuesday 1/9 Sunny
35°25°4%⌄
Wind15 mph NW
Gusts24 mph
UV index8 – Very high
Precip chance4%
Sunrise05:53
Sunset18:44
Wednesday 2/9 Mostly cloudy
34°25°4%⌄
Wind10 mph NW
Gusts20 mph
UV index8 – Very high
Precip chance4%
Sunrise05:54
Sunset18:42
Thursday 3/9 Sunny
32°23°0.4 mm⌄
Wind14 mph NW
Gusts23 mph
UV index8 – Very high
Precip chance36%
Sunrise05:54
Sunset18:41
Friday 4/9 Sunny
30°22°0.6 mm⌄
Wind10 mph NW
Gusts10 mph
UV index7 – High
Precip chance36%
Sunrise05:55
Sunset18:40
Saturday 5/9 Mostly cloudy
28°22°2.2 mm⌄
Wind9 mph NW
Gusts15 mph
UV index6 – High
Precip chance57%
Sunrise05:56
Sunset18:38
Sunday 6/9 Showers
26°22°6.1 mm⌄
Wind9 mph NW
Gusts20 mph
UV index6 – High
Precip chance75%
Sunrise05:56
Sunset18:37
Monday 7/9 Rain (climatological)
32°22°2.1 mm⌄
Day≈29–35°
Night≈19–25°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
35°24°20%⌄
Day≈32–38°
Night≈21–27°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
35°24°20%⌄
Day≈32–38°
Night≈21–27°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Rain (climatological)
35°24°2.2 mm⌄
Day≈32–38°
Night≈21–27°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
32°22°20%⌄
Day≈29–35°
Night≈19–25°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
31°22°20%⌄
Day≈28–34°
Night≈19–25°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Rain (climatological)
32°22°2.5 mm⌄
Day≈29–35°
Night≈19–25°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
33°23°20%⌄
Day≈30–36°
Night≈20–26°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
33°23°20%⌄
Day≈30–36°
Night≈20–26°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Rain (climatological)
33°23°2.5 mm⌄
Day≈30–36°
Night≈20–26°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
35°24°20%⌄
Day≈32–38°
Night≈21–27°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
30°21°20%⌄
Day≈27–33°
Night≈18–24°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Rain (climatological)
30°21°3.3 mm⌄
Day≈27–33°
Night≈18–24°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
30°21°20%⌄
Day≈27–33°
Night≈18–24°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
31°22°20%⌄
Day≈28–34°
Night≈19–25°
Precip≈1.0 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Rain (climatological)
35°24°3.1 mm⌄
Day≈32–38°
Night≈21–27°
Precip≈1.0 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 Swift Trail Junction, 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.