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
107°
Mon, Aug 24
Coldest night
70°
Mon, Aug 31
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
94° 71°
63% precip chance
Sat 5 – Sun 6 Sep
94° 74°
2% precip chance
Sat 12 – Sun 13 Sep
89° 71°
typical range
Sat 19 – Sun 20 Sep
86° 69°
typical range
30 days — Swift Trail Junction
14 forecast + 16 climatology
Mon · Today Sunny
107°80°1%⌄
Wind11 mph NW
Gusts19 mph
UV index11 – Very high
Precip chance1%
Sunrise05:48
Sunset18:53
Tue · Tomorrow Sunny
101°81°2%⌄
Wind8 mph NW
Gusts19 mph
UV index11 – Very high
Precip chance2%
Sunrise05:49
Sunset18:52
Wednesday 26/8 Sunny
101°80°4%⌄
Wind7 mph SE
Gusts16 mph
UV index11 – Very high
Precip chance4%
Sunrise05:49
Sunset18:51
Thursday 27/8 Sunny
101°80°0.2 mm⌄
Wind13 mph N
Gusts17 mph
UV index10 – Very high
Precip chance17%
Sunrise05:50
Sunset18:50
Friday 28/8 Sunny
98°78°1.8 mm⌄
Wind16 mph NE
Gusts22 mph
UV index9 – Very high
Precip chance57%
Sunrise05:51
Sunset18:49
Saturday 29/8 Showers
94°73°0.9 mm⌄
Wind21 mph S
Gusts32 mph
UV index8 – Very high
Precip chance40%
Sunrise05:51
Sunset18:47
Sunday 30/8 Mostly cloudy
90°71°3.3 mm⌄
Wind10 mph NW
Gusts12 mph
UV index7 – High
Precip chance63%
Sunrise05:52
Sunset18:46
Monday 31/8 Showers
88°70°0.4 mm⌄
Wind9 mph NW
Gusts11 mph
UV index8 – Very high
Precip chance36%
Sunrise05:53
Sunset18:45
Tuesday 1/9 Sunny
91°74°3%⌄
Wind14 mph NW
Gusts23 mph
UV index8 – Very high
Precip chance3%
Sunrise05:53
Sunset18:44
Wednesday 2/9 Sunny
87°73°3%⌄
Wind12 mph NW
Gusts17 mph
UV index7 – High
Precip chance3%
Sunrise05:54
Sunset18:42
Thursday 3/9 Sunny
91°73°1%⌄
Wind13 mph NW
Gusts24 mph
UV index8 – Very high
Precip chance1%
Sunrise05:54
Sunset18:41
Friday 4/9 Sunny
91°74°1%⌄
Wind15 mph W
Gusts26 mph
UV index8 – Very high
Precip chance1%
Sunrise05:55
Sunset18:40
Saturday 5/9 Sunny
91°74°1%⌄
Wind15 mph NW
Gusts22 mph
UV index8 – Very high
Precip chance1%
Sunrise05:56
Sunset18:38
Sunday 6/9 Sunny
94°74°2%⌄
Wind10 mph NW
Gusts21 mph
UV index8 – Very high
Precip chance2%
Sunrise05:56
Sunset18:37
Monday 7/9 Light rain (climatological)
89°71°1.3 mm⌄
Day≈83–94°
Night≈66–76°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 8/9 Partly cloudy (climatological)
96°75°20%⌄
Day≈90–101°
Night≈70–80°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 9/9 Partly cloudy (climatological)
94°74°20%⌄
Day≈89–100°
Night≈69–80°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 10/9 Light rain (climatological)
95°75°1.3 mm⌄
Day≈89–100°
Night≈69–80°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 11/9 Partly cloudy (climatological)
90°71°20%⌄
Day≈84–95°
Night≈66–77°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 12/9 Partly cloudy (climatological)
88°71°20%⌄
Day≈83–93°
Night≈65–76°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 13/9 Light rain (climatological)
89°71°1.5 mm⌄
Day≈83–94°
Night≈66–76°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 14/9 Partly cloudy (climatological)
91°72°20%⌄
Day≈85–96°
Night≈67–78°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 15/9 Partly cloudy (climatological)
92°73°20%⌄
Day≈86–97°
Night≈67–78°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Wednesday 16/9 Light rain (climatological)
92°73°1.5 mm⌄
Day≈87–97°
Night≈67–78°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Thursday 17/9 Partly cloudy (climatological)
95°75°20%⌄
Day≈89–100°
Night≈69–80°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Friday 18/9 Partly cloudy (climatological)
86°69°20%⌄
Day≈80–91°
Night≈64–74°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Saturday 19/9 Light rain (climatological)
85°69°2.0 mm⌄
Day≈80–91°
Night≈64–74°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Sunday 20/9 Partly cloudy (climatological)
86°69°20%⌄
Day≈81–91°
Night≈64–75°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Monday 21/9 Partly cloudy (climatological)
88°71°20%⌄
Day≈83–93°
Night≈65–76°
Precip≈0.6 in / September
(climatological)Typical range for these dates · 1991–2020
Tuesday 22/9 Light rain (climatological)
96°75°1.9 mm⌄
Day≈90–101°
Night≈70–80°
Precip≈0.6 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.