Foster Park, IL Weather Forecast & Current Conditions

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Foster Park, IL Weather Maps

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Foster Park Weather Map
UTC Time: 9/20/2026, 00:38
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Foster 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°/ 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.

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.

Naperville, 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.

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.

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.

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.

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.

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.

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.

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.

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.

Michigan City, IN

Tonight
Thunderstorms
68°20°
100%
Sunday
Thunderstorms
70°/ 52° 21°/ 11°
90%
Monday
Rain Showers
65°/ 48° 18°/
40%
Tuesday
Rain Showers
65°/ 50° 18°/ 10°
20%
Wednesday
Rain Showers
65°/ 52° 18°/ 11°
20%
Thursday
Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Cloudy
72°/ 52° 22°/ 11°
0%
Saturday
Sunny
72°22°
0%

Night: A chance of thunderstorms. Showers likely this evening, then showers after midnight. Some thunderstorms may produce heavy rainfall. Locally heavy rainfall possible after midnight. Near steady temperature in the upper 60s. East winds around 5 mph, becoming south after midnight. Chance of rain near 100 percent.

Roselawn, IN

Tonight
Thunderstorms
68°20°
70%
Sunday
Thunderstorms
75°/ 55° 24°/ 13°
70%
Monday
Rain Showers
65°/ 50° 18°/ 10°
50%
Tuesday
Rain Showers
65°/ 52° 18°/ 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
75°24°
0%

Night: Mostly cloudy. A chance of showers in the evening. A chance of thunderstorms. Showers likely after midnight. Lows in the upper 60s. Southeast winds around 5 mph in the evening, becoming light and variable. Chance of precipitation 70 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.

Niles, MI

Tonight
Thunderstorms
62°17°
90%
Sunday
Thunderstorms
72°/ 50° 22°/ 10°
90%
Monday
Rain Showers
65°/ 48° 18°/
30%
Tuesday
Rain Showers
65°/ 48° 18°/
20%
Wednesday
Rain Showers
65°/ 50° 18°/ 10°
20%
Thursday
Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Cloudy
72°/ 50° 22°/ 10°
0%
Saturday
Sunny
72°22°
0%

Night: A chance of thunderstorms. Showers. Some thunderstorms may produce heavy rainfall. Lows in the lower 60s. East winds around 5 mph, becoming south around 5 mph after midnight. Chance of rain 90 percent.

Wanatah, IN

Tonight
Thunderstorms
70°21°
90%
Sunday
Thunderstorms
72°/ 52° 22°/ 11°
70%
Monday
Rain Showers
65°/ 48° 18°/
40%
Tuesday
Rain Showers
65°/ 50° 18°/ 10°
30%
Wednesday
Rain Showers
65°/ 50° 18°/ 10°
20%
Thursday
Cloudy
68°/ 52° 20°/ 11°
0%
Friday
Cloudy
72°/ 50° 22°/ 10°
0%
Saturday
Sunny
72°22°
0%

Night: A chance of thunderstorms. Showers likely this evening, then showers after midnight. Some thunderstorms may produce heavy rainfall. Locally heavy rainfall possible after midnight. Near steady temperature around 70. Southeast winds around 5 mph. Chance of rain 90 percent.

Rensselaer, IN

Tonight
Thunderstorms
68°20°
70%
Sunday
Thunderstorms
75°/ 55° 24°/ 13°
70%
Monday
Rain Showers
65°/ 50° 18°/ 10°
50%
Tuesday
Rain Showers
65°/ 52° 18°/ 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
75°24°
0%

Night: Mostly cloudy. A chance of showers in the evening. A chance of thunderstorms. Showers likely after midnight. Lows in the upper 60s. East winds around 5 mph, becoming west after midnight. Chance of precipitation 70 percent.

Names listed above may include county names.

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