O'Brien Park, IL Weather Forecast & Current Conditions

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Obrien Park Weather Map
UTC Time: 9/20/2026, 00:43
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

O'Brien Park, IL Regional Weather

Expires:202609200100;;737016
ASUS43 KLOT 200010
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
700 PM CDT SAT SEP 19 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>023-200100-
NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  LGT RAIN  69  67  93 CALM      29.93S TC  21           
6HR MIN TEMP:  67; 6HR MAX TEMP:  70; 6HR PCP:  0.01;                

CHICAGO-MIDWAY LGT RAIN  71  69  93 CALM      29.94R TC  22           
6HR MIN TEMP:  67; 6HR MAX TEMP:  72; 6HR PCP:  0.03;                

AURORA         LGT RAIN  68  68 100 SE5       29.94S VSB 1   TC  20   
6HR MIN TEMP:  67; 6HR MAX TEMP:  69; 6HR PCP:  0.16;                

JOLIET*        RAIN      71  71 100 CALM      29.94F TC  22           
WAUKEGAN       LGT RAIN  65  65 100 CALM      29.95R FOG     TC  18   
6HR MIN TEMP:  65; 6HR MAX TEMP:  67; 6HR PCP:  0.17;                

DUPAGE AIRPORT CLOUDY    68  67  96 SE3       29.94F FOG     TC  20   
6HR MIN TEMP:  68; 6HR MAX TEMP:  69; 6HR PCP:  0.08;                

KANKAKEE*      MOCLDY    72  70  94 NE3       29.95S TC  22           
WHEELING       CLOUDY    66  65  96 CALM      29.96R FOG     TC  19   
6HR MIN TEMP:  66; 6HR MAX TEMP:  71; 6HR PCP:  0.04;                

LANSING*       RAIN      69  68  94 W5        29.95R TC  21           
NORTHERLY ISL*   N/A     67  64  90 SE2         N/A  TC  19           
$$


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

Obrien Park, IL

Tonight
Thunderstorms
68°20°
100%
Sunday
Thunderstorms
65°/ 58° 18°/ 14°
80%
Monday
Rain Showers
65°/ 55° 18°/ 13°
40%
Tuesday
Rain Showers
62°/ 52° 17°/ 11°
30%
Wednesday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Saturday
Cloudy
72°22°
0%

Night: Showers and a chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Near steady temperature in the upper 60s. East winds around 5 mph, becoming west after midnight. Chance of precipitation near 100 percent.

Joliet, IL

Tonight
Thunderstorms
68°20°
100%
Sunday
Thunderstorms
68°/ 58° 20°/ 14°
80%
Monday
Rain Showers
65°/ 52° 18°/ 11°
50%
Tuesday
Thunderstorms
62°/ 52° 17°/ 11°
40%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Saturday
Cloudy
75°24°
0%

Night: Showers and a chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Near steady temperature in the upper 60s. East winds around 5 mph, becoming northwest after midnight. Chance of precipitation near 100 percent.

Chicago, IL

Tonight
Thunderstorms
68°20°
100%
Sunday
Thunderstorms
65°/ 58° 18°/ 14°
80%
Monday
Rain Showers
65°/ 55° 18°/ 13°
40%
Tuesday
Rain Showers
62°/ 55° 17°/ 13°
30%
Wednesday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Thursday
Mostly Cloudy
65°/ 58° 18°/ 14°
0%
Friday
Mostly Cloudy
70°/ 58° 21°/ 14°
0%
Saturday
Cloudy
72°22°
0%

Night: Showers and a chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Near steady temperature in the upper 60s. East winds around 5 mph, becoming northwest after midnight. Chance of precipitation near 100 percent.

Calumet City, IL

Tonight
Thunderstorms
68°20°
100%
Sunday
Thunderstorms
68°/ 55° 20°/ 13°
80%
Monday
Rain Showers
65°/ 55° 18°/ 13°
40%
Tuesday
Rain Showers
62°/ 55° 17°/ 13°
30%
Wednesday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Saturday
Cloudy
75°24°
0%

Night: Showers and a chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Near steady temperature in the upper 60s. East winds around 5 mph, becoming west after midnight. Chance of precipitation near 100 percent.

Aurora, IL

Tonight
Thunderstorms
68°20°
100%
Sunday
Thunderstorms
65°/ 55° 18°/ 13°
80%
Monday
Rain Showers
65°/ 52° 18°/ 11°
50%
Tuesday
Rain Showers
62°/ 52° 17°/ 11°
30%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Saturday
Cloudy
72°22°
0%

Night: Showers and a chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Near steady temperature in the upper 60s. East winds around 5 mph, becoming north after midnight. Chance of precipitation near 100 percent.

Oswego, IL

Tonight
Thunderstorms
65°18°
100%
Sunday
Thunderstorms
68°/ 58° 20°/ 14°
80%
Monday
Rain Showers
65°/ 52° 18°/ 11°
50%
Tuesday
Rain Showers
62°/ 52° 17°/ 11°
30%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Saturday
Cloudy
75°24°
0%

Night: Showers and a chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Lows in the mid 60s. East winds around 5 mph, becoming west after midnight. Chance of precipitation near 100 percent.

Evanston, IL

Tonight
Thunderstorms
68°20°
100%
Sunday
Thunderstorms
65°/ 55° 18°/ 13°
80%
Monday
Rain Showers
65°/ 52° 18°/ 11°
40%
Tuesday
Rain Showers
62°/ 52° 17°/ 11°
20%
Wednesday
Rain Showers
62°/ 55° 17°/ 13°
20%
Thursday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Friday
Mostly Cloudy
70°/ 55° 21°/ 13°
0%
Saturday
Cloudy
72°22°
0%

Night: Showers and a chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Near steady temperature in the upper 60s. East winds 5 to 10 mph. Chance of precipitation near 100 percent.

Crete, IL

Tonight
Thunderstorms
68°20°
90%
Sunday
Thunderstorms
70°/ 55° 21°/ 13°
80%
Monday
Rain Showers
65°/ 52° 18°/ 11°
50%
Tuesday
Thunderstorms
62°/ 52° 17°/ 11°
40%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Saturday
Cloudy
72°22°
0%

Night: A chance of showers early in the evening. A chance of thunderstorms. Showers in the late evening and overnight. Near steady temperature in the upper 60s. East winds around 5 mph, becoming west after midnight. Chance of precipitation 90 percent.

Channahon, IL

Tonight
Thunderstorms
68°20°
90%
Sunday
Thunderstorms
72°/ 58° 22°/ 14°
80%
Monday
Rain Showers
65°/ 52° 18°/ 11°
50%
Tuesday
Thunderstorms
65°/ 52° 18°/ 11°
40%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Saturday
Cloudy
75°24°
0%

Night: A chance of showers early in the evening. A chance of thunderstorms. Showers in the late evening and overnight. Lows in the upper 60s. East winds around 5 mph, becoming west after midnight. Chance of precipitation 90 percent.

Morris, IL

Tonight
Thunderstorms
68°20°
90%
Sunday
Thunderstorms
72°/ 58° 22°/ 14°
80%
Monday
Rain Showers
65°/ 55° 18°/ 13°
50%
Tuesday
Rain Showers
65°/ 55° 18°/ 13°
40%
Wednesday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Thursday
Mostly Cloudy
70°/ 55° 21°/ 13°
0%
Friday
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Saturday
Cloudy
75°24°
0%

Night: A chance of showers early in the evening. A chance of thunderstorms. Showers in the late evening and overnight. Lows in the upper 60s. East winds around 5 mph, becoming west after midnight. Chance of precipitation 90 percent.

Gary, IN

Tonight
Thunderstorms
68°20°
100%
Sunday
Thunderstorms
72°/ 55° 22°/ 13°
80%
Monday
Rain Showers
65°/ 52° 18°/ 11°
50%
Tuesday
Rain Showers
62°/ 52° 17°/ 11°
40%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Saturday
Cloudy
72°22°
0%

Night: A chance of showers early in the evening. A chance of thunderstorms. Showers in the late evening and overnight. Some thunderstorms may produce heavy rainfall. Near steady temperature in the upper 60s. East winds around 5 mph, becoming southwest after midnight. Chance of precipitation near 100 percent.

Waukegan, IL

Tonight
Thunderstorms
65°18°
100%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
70%
Monday
Rain Showers
65°/ 52° 18°/ 11°
40%
Tuesday
Rain Showers
62°/ 52° 17°/ 11°
20%
Wednesday
Rain Showers
62°/ 52° 17°/ 11°
20%
Thursday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Friday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Saturday
Cloudy
72°22°
0%

Night: A chance of thunderstorms until early morning. Showers. A slight chance of thunderstorms late. Some thunderstorms may produce heavy rainfall until early morning. Some thunderstorms may produce heavy rainfall late. Near steady temperature in the mid 60s. East winds around 5 mph, increasing to north 10 to 15 mph after midnight. Chance of precipitation near 100 percent.

Crystal Lake, IL

Tonight
Thunderstorms
65°18°
100%
Sunday
Rain Showers
62°/ 55° 17°/ 13°
70%
Monday
Rain Showers
62°/ 50° 17°/ 10°
50%
Tuesday
Rain Showers
62°/ 50° 17°/ 10°
20%
Wednesday
Mostly Cloudy
62°/ 52° 17°/ 11°
0%
Thursday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Friday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%
Saturday
Cloudy
72°22°
0%

Night: A chance of thunderstorms until early morning. Showers. A slight chance of thunderstorms late. Some thunderstorms may produce heavy rainfall until early morning. Some thunderstorms may produce heavy rainfall late. Near steady temperature in the mid 60s. Northeast winds 5 to 10 mph. Chance of precipitation near 100 percent.

DeKalb, IL

Tonight
Thunderstorms
62°17°
100%
Sunday
Thunderstorms
65°/ 55° 18°/ 13°
80%
Monday
Rain Showers
65°/ 52° 18°/ 11°
50%
Tuesday
Rain Showers
62°/ 50° 17°/ 10°
30%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Saturday
Cloudy
72°22°
0%

Night: Showers and a chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Lows in the lower 60s. East winds around 5 mph, becoming north after midnight. Chance of precipitation near 100 percent.

Kankakee, IL

Tonight
Thunderstorms
65°18°
70%
Sunday
Thunderstorms
72°/ 55° 22°/ 13°
80%
Monday
Rain Showers
65°/ 52° 18°/ 11°
50%
Tuesday
Thunderstorms
65°/ 52° 18°/ 11°
50%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Saturday
Cloudy
75°24°
0%

Night: A chance of showers and a slight chance of thunderstorms early in the evening, then showers likely and a chance of thunderstorms in the late evening and overnight. Lows in the mid 60s. East winds around 5 mph, becoming west after midnight. Chance of precipitation 70 percent.

Ottawa, IL

Tonight
Thunderstorms
68°20°
100%
Sunday
Thunderstorms
68°/ 58° 20°/ 14°
70%
Monday
Rain Showers
65°/ 55° 18°/ 13°
60%
Tuesday
Rain Showers
65°/ 52° 18°/ 11°
30%
Wednesday
Mostly Cloudy
65°/ 55° 18°/ 13°
0%
Thursday
Mostly Cloudy
68°/ 55° 20°/ 13°
0%
Friday
Mostly Cloudy
72°/ 55° 22°/ 13°
0%
Saturday
Cloudy
75°24°
0%

Night: A chance of showers early in the evening. A chance of thunderstorms. Showers in the late evening and overnight. Lows in the upper 60s. East winds around 5 mph, becoming west after midnight. Chance of precipitation near 100 percent.

Portage, IN

Tonight
Thunderstorms
68°20°
100%
Sunday
Thunderstorms
72°/ 52° 22°/ 11°
80%
Monday
Rain Showers
65°/ 50° 18°/ 10°
40%
Tuesday
Rain Showers
65°/ 52° 18°/ 11°
30%
Wednesday
Rain Showers
65°/ 52° 18°/ 11°
20%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Saturday
Sunny
72°22°
0%

Night: A chance of showers early in the evening. A chance of thunderstorms. Showers in the late evening and overnight. Some thunderstorms may produce heavy rainfall. Near steady temperature in the upper 60s. East winds around 5 mph, becoming southwest after midnight. Chance of precipitation near 100 percent.

Belvidere, IL

Tonight
Thunderstorms
62°17°
100%
Sunday
Rain Showers
65°/ 55° 18°/ 13°
70%
Monday
Rain Showers
62°/ 48° 17°/
50%
Tuesday
Rain Showers
62°/ 48° 17°/
20%
Wednesday
Mostly Cloudy
62°/ 50° 17°/ 10°
0%
Thursday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Friday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%
Saturday
Cloudy
72°22°
0%

Night: A chance of thunderstorms until early morning. Showers. A slight chance of thunderstorms late. Some thunderstorms may produce heavy rainfall until early morning. Some thunderstorms may produce heavy rainfall late. Lows in the lower 60s. East winds 5 to 10 mph. Chance of precipitation near 100 percent.

Dixon, IL

Tonight
Thunderstorms
65°18°
100%
Sunday
Thunderstorms
65°/ 55° 18°/ 13°
70%
Monday
Rain Showers
65°/ 52° 18°/ 11°
60%
Tuesday
Rain Showers
62°/ 50° 17°/ 10°
30%
Wednesday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
72°/ 52° 22°/ 11°
0%
Saturday
Cloudy
72°22°
0%

Night: Showers and a chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Lows in the mid 60s. Southeast winds around 5 mph, becoming northwest after midnight. Chance of precipitation near 100 percent.

Rochelle, IL

Tonight
Thunderstorms
62°17°
100%
Sunday
Thunderstorms
65°/ 55° 18°/ 13°
70%
Monday
Rain Showers
62°/ 48° 17°/
60%
Tuesday
Rain Showers
62°/ 48° 17°/
20%
Wednesday
Mostly Cloudy
65°/ 48° 18°/
0%
Thursday
Mostly Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Mostly Cloudy
70°/ 52° 21°/ 11°
0%
Saturday
Cloudy
72°22°
0%

Night: Showers and a chance of thunderstorms. Some thunderstorms may produce heavy rainfall. Lows in the lower 60s. East winds around 5 mph, becoming northeast after midnight. Chance of precipitation near 100 percent.

Names listed above may include county names.

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