Oak Brook, IL Weather Forecast & Current Conditions

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Oak Brook Weather Map
UTC Time: 9/16/2026, 05:13
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Oak Brook, IL Regional Weather

Expires:202609160600;;527258
ASUS43 KLOT 160510
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1200 AM CDT WED SEP 16 2026

NOTE: "FAIR" INDICATES FEW OR NO CLOUDS BELOW 12,000 FEET WITH NO
SIGNIFICANT WEATHER AND/OR OBSTRUCTIONS TO VISIBILITY.

* THESE STATIONS ARE NOT UNDER NWS QUALITY CONTROL. THEY ALSO MAY NOT
  REPORT WEATHER SUCH AS PRECIPITATION OR FOG.


ILZ005-006-012>014-019>023-160600-
NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  MOCLDY    72  67  84 N7        30.18S TC  22           
CHICAGO-MIDWAY CLOUDY    73  69  87 NE6       30.18S TC  23           
AURORA         MOCLDY    69  68  96 N6        30.18S TC  21           
JOLIET*        CLOUDY    74  73  95 CALM      30.18S TC  23           
WAUKEGAN       PTCLDY    69  67  93 N5        30.20R TC  21           
DUPAGE AIRPORT CLOUDY    69  68  96 N7        30.19S TC  21           
KANKAKEE*      CLOUDY    71  69  95 CALM      30.18R TC  22           
WHEELING       MOCLDY    70  67  90 N5        30.20S TC  21           
ROMEOVILLE*    MOCLDY    73  73 100 N7        30.18S TC  23           
LANSING*       MOCLDY    74  67  78 N3        30.18S TC  24           
NORTHERLY ISL*   N/A     69  66  90 MISG        N/A  TC  21           
$$


SKY/WX - Weather  TMP - Temperature  DP - Dew Point  RH - Humidity
WIND - Wind Direction/Speed PRES - Barometric Pressure VSB - Visibility
WCI - Wind Chill Index E13G22 Wind - East Wind 13 mph/Gusts of 22 mph

Oak Brook, IL

Tonight
Thunderstorms
65°18°
50%
Wednesday
Thunderstorms
72°/ 65° 22°/ 18°
40%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
40%
Friday
Thunderstorms
75°/ 65° 24°/ 18°
60%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Rain Showers
75°/ 62° 24°/ 17°
50%
Monday
Rain Showers
72°/ 58° 22°/ 14°
30%
Tuesday
Mostly Cloudy
72°22°
0%

Night: Cloudy. A slight chance of showers late in the evening. A slight chance of thunderstorms. A chance of showers in the late evening and overnight. Lows in the mid 60s. North winds around 5 mph. Chance of precipitation 50 percent.

Chicago, IL

Tonight
Thunderstorms
65°18°
50%
Wednesday
Thunderstorms
72°/ 68° 22°/ 20°
40%
Thursday
Thunderstorms
75°/ 65° 24°/ 18°
40%
Friday
Thunderstorms
75°/ 65° 24°/ 18°
60%
Saturday
Thunderstorms
82°/ 68° 28°/ 20°
70%
Sunday
Rain Showers
75°/ 62° 24°/ 17°
50%
Monday
Rain Showers
72°/ 62° 22°/ 17°
40%
Tuesday
Mostly Cloudy
72°22°
0%

Night: Cloudy. A slight chance of showers late in the evening. A slight chance of thunderstorms. A chance of showers in the late evening and overnight. Lows in the mid 60s. North winds 5 to 10 mph. Chance of precipitation 50 percent.

Calumet City, IL

Tonight
Thunderstorms
65°18°
50%
Wednesday
Thunderstorms
75°/ 68° 24°/ 20°
40%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Saturday
Thunderstorms
82°/ 68° 28°/ 20°
70%
Sunday
Rain Showers
78°/ 62° 26°/ 17°
50%
Monday
Rain Showers
72°/ 58° 22°/ 14°
40%
Tuesday
Mostly Cloudy
72°22°
0%

Night: Cloudy. A slight chance of showers and thunderstorms late in the evening, then a chance of showers and thunderstorms in the late evening and overnight. Lows in the mid 60s. North winds around 5 mph. Chance of precipitation 50 percent.

Joliet, IL

Tonight
Thunderstorms
65°18°
50%
Wednesday
Thunderstorms
75°/ 65° 24°/ 18°
50%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Rain Showers
78°/ 62° 26°/ 17°
50%
Monday
Rain Showers
72°/ 58° 22°/ 14°
30%
Tuesday
Mostly Cloudy
72°22°
0%

Night: Cloudy. A slight chance of showers and thunderstorms late in the evening, then a chance of showers and thunderstorms in the late evening and overnight. Lows in the mid 60s. North winds around 5 mph. Chance of precipitation 50 percent.

Evanston, IL

Tonight
Thunderstorms
62°17°
40%
Wednesday
Thunderstorms
72°/ 65° 22°/ 18°
30%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
40%
Friday
Thunderstorms
72°/ 65° 22°/ 18°
70%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Rain Showers
75°/ 60° 24°/ 16°
50%
Monday
Rain Showers
72°/ 58° 22°/ 14°
30%
Tuesday
Mostly Cloudy
72°22°
0%

Night: Cloudy. A slight chance of showers late in the evening. A slight chance of thunderstorms. A chance of showers in the late evening and overnight. Lows in the lower 60s. North winds 5 to 10 mph. Chance of precipitation 40 percent.

Aurora, IL

Tonight
Thunderstorms
62°17°
40%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
40%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
40%
Friday
Thunderstorms
75°/ 65° 24°/ 18°
70%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Rain Showers
75°/ 58° 24°/ 14°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
30%
Tuesday
Mostly Cloudy
72°22°
0%

Night: Cloudy. A slight chance of showers late in the evening. A slight chance of thunderstorms. A chance of showers in the late evening and overnight. Lows in the lower 60s. North winds 5 to 10 mph. Chance of precipitation 40 percent.

Oswego, IL

Tonight
Thunderstorms
65°18°
50%
Wednesday
Thunderstorms
75°/ 65° 24°/ 18°
50%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Saturday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
78°/ 62° 26°/ 17°
50%
Monday
Rain Showers
75°/ 58° 24°/ 14°
30%
Tuesday
Cloudy
75°24°
0%

Night: Cloudy. A slight chance of showers and thunderstorms late in the evening, then a chance of showers and thunderstorms in the late evening and overnight. Lows in the mid 60s. North winds around 5 mph. Chance of precipitation 50 percent.

Waukegan, IL

Tonight
Thunderstorms
62°17°
40%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
30%
Thursday
Thunderstorms
75°/ 62° 24°/ 17°
40%
Friday
Thunderstorms
72°/ 62° 22°/ 17°
70%
Saturday
Thunderstorms
78°/ 62° 26°/ 17°
80%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
30%
Tuesday
Mostly Cloudy
72°22°
0%

Night: Cloudy. A chance of showers and a slight chance of thunderstorms. Lows in the lower 60s. North winds 5 to 10 mph. Chance of precipitation 40 percent.

Gary, IN

Tonight
Thunderstorms
65°18°
70%
Wednesday
Thunderstorms
75°/ 65° 24°/ 18°
50%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Thunderstorms
78°/ 62° 26°/ 17°
50%
Saturday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
78°/ 60° 26°/ 16°
50%
Monday
Rain Showers
75°/ 58° 24°/ 14°
40%
Tuesday
Cloudy
72°22°
0%

Night: Showers and thunderstorms likely. Lows in the mid 60s. North winds around 5 mph. Chance of precipitation 70 percent.

Crete, IL

Tonight
Thunderstorms
65°18°
70%
Wednesday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Saturday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
78°/ 60° 26°/ 16°
50%
Monday
Rain Showers
72°/ 58° 22°/ 14°
40%
Tuesday
Cloudy
72°22°
0%

Night: A chance of showers and thunderstorms late in the evening, then showers and thunderstorms likely in the late evening and overnight. Lows in the mid 60s. North winds around 5 mph. Chance of precipitation 70 percent.

Crystal Lake, IL

Tonight
Thunderstorms
60°16°
40%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
40%
Thursday
Thunderstorms
75°/ 62° 24°/ 17°
40%
Friday
Thunderstorms
72°/ 62° 22°/ 17°
70%
Saturday
Thunderstorms
78°/ 62° 26°/ 17°
80%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
30%
Tuesday
Mostly Cloudy
72°22°
0%

Night: Cloudy. A chance of showers and a slight chance of thunderstorms. Lows around 60. North winds 5 to 10 mph. Chance of precipitation 40 percent.

Channahon, IL

Tonight
Thunderstorms
65°18°
70%
Wednesday
Thunderstorms
78°/ 68° 26°/ 20°
50%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Thunderstorms
78°/ 65° 26°/ 18°
40%
Saturday
Thunderstorms
85°/ 68° 29°/ 20°
70%
Sunday
Rain Showers
78°/ 62° 26°/ 17°
50%
Monday
Rain Showers
75°/ 58° 24°/ 14°
30%
Tuesday
Cloudy
75°24°
0%

Night: A chance of showers and thunderstorms late in the evening, then showers and thunderstorms likely in the late evening and overnight. Lows in the mid 60s. North winds around 5 mph. Chance of precipitation 70 percent.

Morris, IL

Tonight
Thunderstorms
65°18°
70%
Wednesday
Thunderstorms
78°/ 68° 26°/ 20°
50%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Thunderstorms
80°/ 68° 27°/ 20°
40%
Saturday
Thunderstorms
88°/ 68° 31°/ 20°
70%
Sunday
Rain Showers
80°/ 62° 27°/ 17°
50%
Monday
Rain Showers
75°/ 58° 24°/ 14°
30%
Tuesday
Mostly Cloudy
75°24°
0%

Night: A chance of showers and thunderstorms late in the evening, then showers and thunderstorms likely in the late evening and overnight. Lows in the mid 60s. North winds around 5 mph. Chance of precipitation 70 percent.

DeKalb, IL

Tonight
Thunderstorms
62°17°
50%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
50%
Thursday
Thunderstorms
78°/ 62° 26°/ 17°
40%
Friday
Thunderstorms
75°/ 65° 24°/ 18°
70%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Rain Showers
75°/ 58° 24°/ 14°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
30%
Tuesday
Mostly Cloudy
72°22°
0%

Night: Cloudy. A slight chance of showers late in the evening. A slight chance of thunderstorms. A chance of showers in the late evening and overnight. Lows in the lower 60s. North winds 5 to 10 mph. Chance of precipitation 50 percent.

Kankakee, IL

Tonight
Thunderstorms
68°20°
70%
Wednesday
Thunderstorms
78°/ 68° 26°/ 20°
50%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Thunderstorms
80°/ 65° 27°/ 18°
40%
Saturday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
80°/ 62° 27°/ 17°
50%
Monday
Rain Showers
75°/ 58° 24°/ 14°
40%
Tuesday
Cloudy
75°24°
0%

Night: Showers and thunderstorms likely. Lows in the upper 60s. North winds around 5 mph. Chance of precipitation 70 percent.

Portage, IN

Tonight
Thunderstorms
65°18°
70%
Wednesday
Thunderstorms
78°/ 65° 26°/ 18°
40%
Thursday
Thunderstorms
75°/ 65° 24°/ 18°
50%
Friday
Thunderstorms
78°/ 62° 26°/ 17°
50%
Saturday
Thunderstorms
82°/ 65° 28°/ 18°
70%
Sunday
Rain Showers
78°/ 60° 26°/ 16°
50%
Monday
Rain Showers
75°/ 58° 24°/ 14°
30%
Tuesday
Mostly Cloudy
75°24°
0%

Night: Showers and thunderstorms likely. Lows in the mid 60s. North winds around 5 mph. Chance of precipitation 70 percent.

Ottawa, IL

Tonight
Thunderstorms
65°18°
70%
Wednesday
Thunderstorms
75°/ 65° 24°/ 18°
50%
Thursday
Thunderstorms
78°/ 65° 26°/ 18°
50%
Friday
Thunderstorms
78°/ 68° 26°/ 20°
50%
Saturday
Thunderstorms
85°/ 65° 29°/ 18°
70%
Sunday
Rain Showers
78°/ 62° 26°/ 17°
50%
Monday
Mostly Cloudy
75°/ 58° 24°/ 14°
0%
Tuesday
Mostly Cloudy
75°24°
0%

Night: A chance of showers and thunderstorms late in the evening, then showers and thunderstorms likely in the late evening and overnight. Lows in the mid 60s. North winds 5 to 10 mph. Chance of precipitation 70 percent.

Kenosha, WI

Tonight
Sprinkles
62°17°
0%
Wednesday
Thunderstorms
70°/ 65° 21°/ 18°
40%
Thursday
Rain Showers
75°/ 60° 24°/ 16°
40%
Friday
Thunderstorms
72°/ 62° 22°/ 17°
80%
Saturday
Thunderstorms
78°/ 62° 26°/ 17°
80%
Sunday
Rain Showers
70°/ 58° 21°/ 14°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
30%
Tuesday
Rain Showers
70°21°
20%

Night: Mostly cloudy. Slight chance of sprinkles after midnight. Lows in the lower 60s. North winds 5 to 10 mph.

Belvidere, IL

Tonight
Thunderstorms
58°14°
40%
Wednesday
Thunderstorms
72°/ 62° 22°/ 17°
40%
Thursday
Thunderstorms
75°/ 60° 24°/ 16°
40%
Friday
Thunderstorms
72°/ 62° 22°/ 17°
80%
Saturday
Thunderstorms
80°/ 62° 27°/ 17°
80%
Sunday
Rain Showers
72°/ 58° 22°/ 14°
50%
Monday
Rain Showers
72°/ 55° 22°/ 13°
30%
Tuesday
Mostly Cloudy
72°22°
0%

Night: Cloudy. A chance of showers and a slight chance of thunderstorms. Lows in the upper 50s. North winds 5 to 10 mph. Chance of precipitation 40 percent.

Whitewater, WI

Tonight
Sprinkles
58°14°
0%
Wednesday
Thunderstorms
68°/ 62° 20°/ 17°
40%
Thursday
Rain Showers
75°/ 58° 24°/ 14°
40%
Friday
Thunderstorms
72°/ 62° 22°/ 17°
80%
Saturday
Thunderstorms
78°/ 62° 26°/ 17°
80%
Sunday
Rain Showers
68°/ 58° 20°/ 14°
50%
Monday
Rain Showers
70°/ 55° 21°/ 13°
30%
Tuesday
Rain Showers
68°20°
20%

Night: Mostly cloudy. Slight chance of sprinkles after midnight. Lows in the upper 50s. North winds up to 5 mph.

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