Weather Chicago Today – Temperature, Rain & Hourly Forecast
Monday, 21/09/2026
17°
Overcast · Feels like 15°
Updated 10 hours ago
- High/Low
- 17°/14°
- Humidity
- 87%
- Wind
- 22 km/h
- Rainfall
- 0.0 mm
- UV index
- 1.7
- Pressure
- 1018 hPa
- Sunrise
- 06:37
- Sunset
- 18:49
Today
00
06
12
18
00:0006:0012:0018:00
Summary
Chicago gets a cooler-than-usual day, 14–17°C, under overcast.
No meaningful rain expected.
UV peaks at 1.7 around 12:00 — safe levels.
At 87% humidity it feels like 15°C.
Winds of 31 km/h from the north-east.
Temperatures climb over the next few days, peaking at 20°C on Sunday 27/09.
The week ahead is dry, totalling only about 0 mm.
Sunrise 06:37, sunset 18:49.
Best time to visit
Outdoor heat stress
15°C
Peaks at 19:00 — safe
Dry riding window
19:00–09:00
14 hours dry; 1 window(s) in the next 14 hours
Drying laundry
Workable
0 sunny hours, 0 wet hours between 07:00 and 17:00
Sunrise viewing
06:38
100% cloud at sunrise — thick cloud, poor visibility
Skin protection
1.7
Unprotected skin may burn in about 90 minutes
48-hour forecast
19:00
15°
2%
20:00
15°
2%
21:00
15°
2%
22:00
14°
2%
23:00
14°
2%
00:00
13°
1%
01:00
13°
1%
02:00
13°
2%
03:00
12°
3%
04:00
12°
3%
05:00
12°
3%
06:00
12°
2%
07:00
12°
2%
08:00
12°
2%
09:00
13°
3%
10:00
14°
6%
11:00
14°
6%
12:00
15°
6%
13:00
15°
6%
14:00
15°
4%
15:00
15°
4%
16:00
15°
4%
17:00
15°
4%
18:00
15°
4%
19:00
16°
4%
20:00
17°
2%
21:00
17°
2%
22:00
17°
2%
23:00
17°
2%
00:00
16°
2%
01:00
16°
2%
02:00
15°
1%
03:00
15°
1%
04:00
15°
1%
05:00
15°
1%
06:00
15°
1%
07:00
15°
1%
08:00
16°
2%
09:00
16°
2%
10:00
16°
2%
11:00
16°
2%
12:00
16°
2%
13:00
16°
2%
14:00
17°
1%
15:00
17°
1%
16:00
17°
1%
17:00
17°
1%
18:00
17°
1%
Days ahead
| Today | Low/High | Chance of rain | Rainfall | |
|---|---|---|---|---|
| Today 21/09 | Overcast | 14°17° | 26% | 0.0 mm |
| Tomorrow 22/09 | Overcast | 12°17° | 6% | 0.0 mm |
| Wednesday 23/09 | Overcast | 15°17° | 2% | 0.0 mm |
| Thursday 24/09 | Overcast | 15°18° | 1% | 0.0 mm |
| Friday 25/09 | Overcast | 15°18° | 1% | 0.0 mm |
Monthly averages
Common questions
Will it rain in Chicago today?
No. The chance of rain today is only about 26%.
How hot is it in Chicago today?
Between 14°C and 17°C, with a felt maximum of 14°C.
What is the weather in Chicago tomorrow?
Tomorrow: overcast, 12–17°C, with a 6% chance of rain.