World Resorts USA Chicago Weather

Chicago 14 Days Forecast

18.12
thu
Day
43°F
N 22 mph
Precip.
0%
Night
25°F
E 19 mph
Precip.
0%
19.12
fri
Day
16°F
SE 16 mph
Precip.
0%
Night
23°F
N 9 mph
Precip.
0%
20.12
sat
Day
34°F
NE 18 mph
Precip.
0%
Night
28°F
E 13 mph
Precip.
0%
21.12
sun
Day
30°F
SE 14 mph
Precip.
0%
Night
30°F
W 5 mph
Precip.
100%
22.12
mon
Day
32°F
NW 10 mph
Precip.
0%
Night
32°F
NW 11 mph
Precip.
0%
23.12
tue
Day
36°F
NE 9 mph
Precip.
0%
Night
34°F
S 4 mph
Precip.
0%
24.12
wed
Day
37°F
NW 6 mph
Precip.
0%
Night
37°F
W 9 mph
Precip.
100%
25.12
thu
Day
39°F
W 7 mph
Precip.
45%
Night
37°F
NW 7 mph
Precip.
0%
26.12
fri
Day
48°F
N 11 mph
Precip.
0%
Night
48°F
SE 11 mph
Precip.
0%
27.12
sat
Day
39°F
SE 9 mph
Precip.
0%
Night
34°F
SE 11 mph
Precip.
0%
28.12
sun
Day
32°F
NW 11 mph
Precip.
0%
Night
30°F
W 14 mph
Precip.
0%
29.12
mon
Day
28°F
NW 17 mph
Precip.
100%
Night
36°F
NW 19 mph
Precip.
100%
30.12
tue
Day
39°F
NE 20 mph
Precip.
68%
Night
34°F
E 17 mph
Precip.
28%
31.12
wed
Day
30°F
E 18 mph
Precip.
79%
Night
25°F
E 17 mph
Precip.
74%

Sea water temperature in December, °F

Show year:
2025
2024
2023

The average sea water temperature in December of 2025 was 40.6°F. The highest and lowest sea temperatures during the month were 44.8°F and 36.3°F.

Sea water temperature in January, °F

Show year:
2025
2024
2023

The average sea water temperature in January of 2025 was 34.7°F. The highest and lowest sea temperatures during the month were 37.6°F and 33.3°F.

Air temperature in Chicago, °F

Precipitation total in Chicago, in.

* Charts above show average data for the last 3 years.

Best time for vacation in Chicago

Sunniest months:
September 17 days
August 16 days
July 15 days
Warmest months:
July 80.4 °F
August 79.9 °F
June 74.3 °F
Warmest sea temp:
August 70.3 °F
July 68.2 °F
September 66.1 °F
Coldest months:
January 28.2 °F
February 30.9 °F
December 36.0 °F
Rainiest months:
June 7 days
May 6 days
July 5 days
Windiest months:
November 12.2 mph
January 12.0 mph
February 11.7 mph

Chicago on a weather map

Chicago
+39°F
N 17 mph
Feels like: +32°F
Precip.: 0%
Places in USA:
Name
°F
+30°F
+73°F
+73°F
+50°F
+52°F
+70°F
+75°F
+70°F
+30°F
+52°F
+48°F
+61°F
+59°F
+63°F
+39°F
24 Hours Forecast
Chicago
Local time: 03:36
December 18, thursday
0600
45°F
N
17 mph
0900
43°F
N
20 mph
1200
43°F
N
22 mph
1500
39°F
E
19 mph
1800
37°F
E
12 mph
2100
30°F
E
17 mph
December 19, friday
0000
25°F
E
19 mph
0300
18°F
E
20 mph
Units of measurement: °C / °F