Chicago, IL 14-Day Forecast
Illinois, United States 🇺🇸
69°
Overcast right now
Today: high 80°, low 64°
Updated 27 min ago
Chicago weather for the next 14 days
Wednesday, August 19
Patchy rain nearby High 78° Low 66°Precipitation
80%
· 0.28 in
Max wind
13 mph
Humidity
80%
UV index
6 - High
Sunrise / sunset
06:03 AM / 07:45 PM
Thursday, August 20
Sunny High 80° Low 66°Precipitation
4%
· 0.0 in
Max wind
8 mph
Humidity
55%
UV index
6 - High
Sunrise / sunset
06:04 AM / 07:43 PM
Friday, August 21
Sunny High 80° Low 66°Precipitation
6%
· 0.0 in
Max wind
8 mph
Humidity
62%
UV index
7 - High
Sunrise / sunset
06:05 AM / 07:42 PM
Saturday, August 22
Patchy rain nearby High 82° Low 65°Precipitation
62%
· 0.12 in
Max wind
10 mph
Humidity
67%
UV index
7 - High
Sunrise / sunset
06:06 AM / 07:40 PM
Sunday, August 23
Overcast High 75° Low 64°Precipitation
7%
· 0.0 in
Max wind
11 mph
Humidity
54%
UV index
6 - High
Sunrise / sunset
06:07 AM / 07:39 PM
Monday, August 24
Sunny High 77° Low 64°Precipitation
5%
· 0.0 in
Max wind
9 mph
Humidity
52%
UV index
6 - High
Sunrise / sunset
06:08 AM / 07:37 PM
Tuesday, August 25
Sunny High 81° Low 65°Precipitation
17%
· 0.0 in
Max wind
10 mph
Humidity
64%
UV index
7 - High
Sunrise / sunset
06:09 AM / 07:36 PM
Wednesday, August 26
Patchy rain nearby High 70° Low 62°Precipitation
46%
· 0.03 in
Max wind
12 mph
Humidity
76%
UV index
6 - High
Sunrise / sunset
06:10 AM / 07:34 PM
Thursday, August 27
Sunny High 72° Low 63°Precipitation
63%
· 0.1 in
Max wind
11 mph
Humidity
75%
UV index
6 - High
Sunrise / sunset
06:11 AM / 07:32 PM
Friday, August 28
Sunny High 76° Low 63°Precipitation
2%
· 0.0 in
Max wind
8 mph
Humidity
53%
UV index
6 - High
Sunrise / sunset
06:12 AM / 07:31 PM
Saturday, August 29
Sunny High 78° Low 63°Precipitation
2%
· 0.0 in
Max wind
9 mph
Humidity
52%
UV index
7 - High
Sunrise / sunset
06:13 AM / 07:29 PM
Sunday, August 30
Patchy rain nearby High 73° Low 61°Precipitation
76%
· 0.11 in
Max wind
12 mph
Humidity
78%
UV index
5 - Moderate
Sunrise / sunset
06:14 AM / 07:28 PM
Monday, August 31
Sunny High 69° Low 59°Precipitation
6%
· 0.0 in
Max wind
10 mph
Humidity
55%
UV index
6 - High
Sunrise / sunset
06:15 AM / 07:26 PM
Chicago 14-day outlook: the story
The warmest day of Chicago's 14-day outlook is Saturday, August 22 with a high near 82°F (28°C); the coolest night comes Monday, August 31, dipping to 59°F (15°C). The trend points cooler: week two runs about 5°F below week one. Highs over the next two weeks average 79°F (26°C), right in line with the typical August high of 80°F (26°C).
Precipitation is most likely on Wednesday 19, Saturday 22, Thursday 27, Sunday 30; the wettest day looks like Wednesday, August 19 with about 0.28 in (7.1 mm) expected. For the weekend, expect Saturday 82°F (28°C) and patchy rain nearby / Sunday 75°F (24°C) and overcast.
For typical conditions month by month, see the Chicago climate & average temperatures guide.
Chicago forecast questions
Will it rain in Chicago this week?
The forecast currently shows meaningful precipitation chances on 4 of the next 14 days, peaking around Wednesday, August 19.
What will be the warmest day in Chicago over the next 14 days?
Saturday, August 22, with a forecast high near 82°F (28°C).
How accurate is a 14-day forecast for Chicago?
Days 1-3 are highly reliable, days 4-7 capture the overall pattern well, and days 8-14 indicate trends rather than exact figures - check back as the date approaches; this page refreshes throughout the day.
Average temperatures in Chicago by month
| Month | High | Low | Rain days | Precipitation | Sunshine | Humidity |
|---|---|---|---|---|---|---|
| January | 32° | 20° | 10 | 2.6 in | 4.9 h/day | 76% |
| February | 36° | 20° | 9 | 2.4 in | 6.8 h/day | 73% |
| March | 45° | 31° | 11 | 3.5 in | 7.9 h/day | 74% |
| April | 54° | 39° | 14 | 4.2 in | 8.8 h/day | 73% |
| May | 66° | 50° | 13 | 5.3 in | 10.1 h/day | 76% |
| June | 77° | 61° | 12 | 4.5 in | 11.6 h/day | 73% |
| July | 80° | 67° | 12 | 6.0 in | 11.8 h/day | 77% |
| August | 80° | 66° | 12 | 4.2 in | 11.5 h/day | 76% |
| September | 75° | 62° | 10 | 3.8 in | 9.6 h/day | 74% |
| October | 62° | 49° | 12 | 4.8 in | 7.5 h/day | 72% |
| November | 48° | 36° | 8 | 2.5 in | 6.0 h/day | 73% |
| December | 39° | 28° | 9 | 2.6 in | 5.0 h/day | 75% |
14-day forecasts nearby