Chicago, Illinois · now
Cloudy
- High / Low
- 56° / 46°
- Wind
- 17 mph N
- Humidity
- 67%
Tomorrow· Thursday56°/50°· Sunny
9° warmer than yesterday at this time
Current weather and 7-day forecast for Chicago, Illinois, sourced directly from the National Weather Service. Expect mostly cloudy today. Today's high is 56° with a low near 46°.
What to wear today
Light jacket or sweatshirt
High around 56°F. Layer that you can shed if the sun comes out.
Temperature · next 24 hours
Next 24 hours
-
5 AM
50°
0%
-
7 AM
51°
0%
-
9 AM
51°
0%
-
11 AM
51°
0%
-
1 PM
54°
0%
-
3 PM
56°
0%
-
5 PM
54°
0%
-
7 PM
54°
0%
-
9 PM
50°
0%
-
11 PM
47°
0%
-
1 AM
47°
0%
-
3 AM
47°
0%
Live radar
View full radar →7 days
- Today 5/13 Mostly Cloudy 0% 56° · 46°
- Thu 5/14 Sunny 21% 56° · 50°
- Fri 5/15
Chance Rain Showers 39% 75° · 58° - Sat 5/16
Chance Showers And Thunderstorms 58% 84° · 58° - Sun 5/17 Showers And Thunderstorms Likely 55% 78° · 61°
- Mon 5/18 Chance Showers And Thunderstorms 54% 88° · 60°
- Tue 5/19 Rain Showers Likely 65% 72° · 55°
Extended outlook days 8–16
- Wed 5/20
Cloudy 44% 54° · 48° - Thu 5/21 Mostly Sunny 19% 64° · 47°
- Fri 5/22 Mostly Sunny 20% 70° · 52°
- Sat 5/23
Fog 21% 81° · 61° - Sun 5/24
Drizzle 19% 80° · 70° - Mon 5/25 Drizzle 23% 83° · 67°
- Tue 5/26 Drizzle 20% 70° · 66°
- Wed 5/27 Drizzle 28% 74° · 56°
- Thu 5/28 Mostly Sunny 40% 57° · 47°
Days 8+ from the Open-Meteo multi-model ensemble — treat as a guide; accuracy drops past day 7.
Best time to head outside
Picks the upcoming daytime hour with the most favorable conditions for each activity. Factors in temperature, wind, precipitation timing, and pollen.
- Run7 AM
comfortable at 51°F · breezy (15 mph) · no rain expected · pollen high today — allergy sufferers, take note
Excellent100 / 100 - Bike2 PM
cool but workable at 56°F · breezy (15 mph) · no rain expected · pollen high today — allergy sufferers, take note
Excellent91 / 100 - Golf2 PM
cool but workable at 56°F · breezy (15 mph) · no rain expected · pollen high today — allergy sufferers, take note
Excellent93 / 100 - Picnic2 PM
cool but workable at 56°F · breezy (15 mph) · no rain expected · pollen high today — allergy sufferers, take note
Good78 / 100
Climate normals
What weather to expect in Chicago
Chicago in May typically averages 66° highs and 50° lows, with about 17 days of rain. The hottest stretch is July (average high 82°); the coldest is January (average low 16°).
| Month | Avg high | Avg low | Rainy days |
|---|---|---|---|
| Jan | 29° | 16° | 13 |
| Feb | 36° | 23° | 11 |
| Mar | 52° | 34° | 16 |
| Apr | 59° | 43° | 18 |
| May | 66° | 50° | 17 |
| Jun | 81° | 64° | 14 |
| Jul | 82° | 68° | 18 |
| Aug | 80° | 66° | 12 |
| Sep | 76° | 61° | 8 |
| Oct | 66° | 51° | 7 |
| Nov | 50° | 39° | 13 |
| Dec | 35° | 24° | 15 |
Normals derived from the past two years of observations via Open-Meteo's historical archive.
More for Chicago
Other cities in Illinois