Fourth Lake, IL Weather Forecast & Current Conditions

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Fourth Lake Weather Map
UTC Time: 9/30/2026, 04:48
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Fourth Lake, IL Regional Weather

Expires:202609300500;;280248
ASUS43 KLOT 300411
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1100 PM CDT TUE SEP 29 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>023-300500-
NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  CLOUDY    69  49  48 S9        29.92S TC  21           
CHICAGO-MIDWAY CLOUDY    71  49  45 S9        29.93S TC  22           
AURORA         CLOUDY    66  48  52 S7        29.92S TC  19           
JOLIET*        MOCLDY    68  51  54 S6        29.94S TC  20           
WAUKEGAN       CLOUDY    66  56  70 S5        29.91S TC  19           
DUPAGE AIRPORT CLOUDY    67  50  54 S8        29.93R TC  19           
KANKAKEE*      MOCLDY    66  51  57 S7        29.97S TC  19           
WHEELING       CLOUDY    65  55  70 S7        29.93S TC  18           
ROMEOVILLE*    CLOUDY    66  52  59 S9        29.94S TC  19           
LANSING*       MOCLDY    63  51  65 S7        29.95F TC  17           
NORTHERLY ISL*   N/A     70  48  45 S9          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

Fourth Lake, IL

Tonight
Rain Showers
62°17°
50%
Wednesday
Rain Showers
68°/ 65° 20°/ 18°
100%
Thursday
Thunderstorms
70°/ 55° 21°/ 13°
100%
Friday
Mostly Cloudy
65°/ 45° 18°/ 7°
0%
Saturday
Cloudy
62°/ 45° 17°/ 7°
0%
Sunday
Cloudy
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Cloudy
62°17°
0%

Night: Cloudy. A slight chance of showers after midnight. A chance of showers late. Near steady temperature in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 50 percent.

Kenosha, WI

Tonight
Rain Showers
60°16°
70%
Wednesday
Thunderstorms
68°/ 62° 20°/ 17°
90%
Thursday
Thunderstorms
68°/ 52° 20°/ 11°
90%
Friday
Partly Cloudy
65°/ 45° 18°/ 7°
0%
Saturday
Sunny
62°/ 45° 17°/ 7°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Sunny
62°17°
0%

Night: Warmer, cloudy. Chance of light showers in the late evening and early morning. Light showers likely early in the morning. Lows around 60. South winds up to 10 mph. Chance of showers 70 percent.

Crystal Lake, IL

Tonight
Rain Showers
62°17°
70%
Wednesday
Rain Showers
68°/ 65° 20°/ 18°
100%
Thursday
Thunderstorms
70°/ 52° 21°/ 11°
90%
Friday
Mostly Cloudy
65°/ 45° 18°/ 7°
0%
Saturday
Sunny
65°/ 45° 18°/ 7°
0%
Sunday
Cloudy
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Cloudy
62°17°
0%

Night: Cloudy. A chance of showers after midnight. Showers likely late. Near steady temperature in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 70 percent.

Whitewater, WI

Tonight
Rain Showers
60°16°
80%
Wednesday
Thunderstorms
68°/ 62° 20°/ 17°
90%
Thursday
Thunderstorms
68°/ 52° 20°/ 11°
90%
Friday
Partly Cloudy
65°/ 42° 18°/ 6°
0%
Saturday
Sunny
65°/ 45° 18°/ 7°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Sunny
62°17°
0%

Night: Warmer, cloudy. Chance of light showers late in the evening. Light showers after midnight. Lows around 60. South winds 5 to 10 mph. Chance of showers 80 percent.

Evanston, IL

Tonight
Rain Showers
65°18°
50%
Wednesday
Rain Showers
68°/ 65° 20°/ 18°
100%
Thursday
Thunderstorms
72°/ 55° 22°/ 13°
100%
Friday
Rain Showers
65°/ 48° 18°/ 9°
20%
Saturday
Sunny
65°/ 48° 18°/ 9°
0%
Sunday
Cloudy
65°/ 45° 18°/ 7°
0%
Monday
Sunny
62°/ 45° 17°/ 7°
0%
Tuesday
Cloudy
62°17°
0%

Night: Cloudy. A chance of showers late. Near steady temperature in the mid 60s. South winds 5 to 10 mph. Chance of precipitation 50 percent.

Racine, WI

Tonight
Rain Showers
60°16°
80%
Wednesday
Thunderstorms
68°/ 62° 20°/ 17°
90%
Thursday
Thunderstorms
68°/ 52° 20°/ 11°
90%
Friday
Partly Cloudy
65°/ 45° 18°/ 7°
0%
Saturday
Sunny
62°/ 45° 17°/ 7°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
60°/ 42° 16°/ 6°
0%
Tuesday
Sunny
62°17°
0%

Night: Warmer, cloudy. Chance of light rain showers late in the evening. Light rain showers after midnight. Lows around 60. South winds 5 to 10 mph. Chance of showers 80 percent.

Aurora, IL

Tonight
Rain Showers
62°17°
50%
Wednesday
Rain Showers
68°/ 65° 20°/ 18°
100%
Thursday
Thunderstorms
72°/ 55° 22°/ 13°
100%
Friday
Rain Showers
68°/ 45° 20°/ 7°
20%
Saturday
Sunny
65°/ 45° 18°/ 7°
0%
Sunday
Cloudy
68°/ 42° 20°/ 6°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Cloudy
65°18°
0%

Night: Cloudy. A slight chance of showers after midnight. A chance of showers late. Near steady temperature in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 50 percent.

Naperville, IL

Tonight
Rain Showers
65°18°
50%
Wednesday
Rain Showers
68°/ 65° 20°/ 18°
100%
Thursday
Thunderstorms
72°/ 58° 22°/ 14°
90%
Friday
Rain Showers
65°/ 48° 18°/ 9°
20%
Saturday
Sunny
65°/ 48° 18°/ 9°
0%
Sunday
Cloudy
68°/ 45° 20°/ 7°
0%
Monday
Sunny
62°/ 45° 17°/ 7°
0%
Tuesday
Cloudy
65°18°
0%

Night: Cloudy. A chance of showers late. Near steady temperature in the mid 60s. South winds 5 to 10 mph. Chance of precipitation 50 percent.

Chicago, IL

Tonight
Rain Showers
65°18°
30%
Wednesday
Rain Showers
65°/ 65° 18°/ 18°
100%
Thursday
Thunderstorms
72°/ 58° 22°/ 14°
90%
Friday
Rain Showers
65°/ 52° 18°/ 11°
20%
Saturday
Sunny
62°/ 50° 17°/ 10°
0%
Sunday
Cloudy
65°/ 48° 18°/ 9°
0%
Monday
Sunny
62°/ 48° 17°/ 9°
0%
Tuesday
Cloudy
62°17°
0%

Night: Cloudy. A chance of showers late. Near steady temperature in the mid 60s. South winds 5 to 10 mph. Chance of precipitation 30 percent.

Milwaukee, WI

Tonight
Rain Showers
58°14°
80%
Wednesday
Thunderstorms
68°/ 62° 20°/ 17°
90%
Thursday
Rain Showers
68°/ 52° 20°/ 11°
90%
Friday
Partly Cloudy
62°/ 45° 17°/ 7°
0%
Saturday
Sunny
62°/ 45° 17°/ 7°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
58°/ 42° 14°/ 6°
0%
Tuesday
Sunny
62°17°
0%

Night: Cloudy. Chance of light rain showers late in the evening. Light rain showers after midnight. Lows in the upper 50s. South winds 5 to 10 mph. Chance of showers 80 percent.

Waukesha, WI

Tonight
Rain Showers
60°16°
80%
Wednesday
Thunderstorms
68°/ 62° 20°/ 17°
90%
Thursday
Rain Showers
68°/ 52° 20°/ 11°
90%
Friday
Partly Cloudy
65°/ 45° 18°/ 7°
0%
Saturday
Partly Cloudy
62°/ 45° 17°/ 7°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
60°/ 42° 16°/ 6°
0%
Tuesday
Sunny
62°17°
0%

Night: Warmer, cloudy. Chance of light rain showers late in the evening. Light rain showers after midnight. Lows around 60. South winds up to 10 mph. Chance of showers 80 percent.

Belvidere, IL

Tonight
Rain Showers
62°17°
80%
Wednesday
Rain Showers
68°/ 65° 20°/ 18°
100%
Thursday
Thunderstorms
68°/ 52° 20°/ 11°
90%
Friday
Mostly Cloudy
65°/ 42° 18°/ 6°
0%
Saturday
Cloudy
65°/ 45° 18°/ 7°
0%
Sunday
Cloudy
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Cloudy
62°17°
0%

Night: Cloudy. A slight chance of showers late in the evening. A chance of showers after midnight, then showers late. Not as cool. Lows in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 80 percent.

DeKalb, IL

Tonight
Rain Showers
62°17°
70%
Wednesday
Rain Showers
68°/ 65° 20°/ 18°
100%
Thursday
Thunderstorms
72°/ 55° 22°/ 13°
100%
Friday
Rain Showers
68°/ 45° 20°/ 7°
20%
Saturday
Sunny
65°/ 45° 18°/ 7°
0%
Sunday
Cloudy
68°/ 42° 20°/ 6°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Cloudy
65°18°
0%

Night: Cloudy. A slight chance of showers after midnight. Showers likely late. Near steady temperature in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 70 percent.

Watertown, WI

Tonight
Thunderstorms
60°16°
80%
Wednesday
Rain Showers
70°/ 62° 21°/ 17°
90%
Thursday
Rain Showers
68°/ 48° 20°/ 9°
90%
Friday
Partly Cloudy
65°/ 42° 18°/ 6°
0%
Saturday
Sunny
65°/ 45° 18°/ 7°
0%
Sunday
Sunny
65°/ 40° 18°/ 4°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Sunny
62°17°
0%

Night: Warmer, cloudy. Chance of light showers through around midnight. Light showers after midnight. Slight chance of thunderstorms early in the morning. Lows around 60. South winds 5 to 10 mph. Chance of precipitation 80 percent.

Janesville, WI

Tonight
Thunderstorms
60°16°
80%
Wednesday
Thunderstorms
68°/ 62° 20°/ 17°
90%
Thursday
Thunderstorms
68°/ 50° 20°/ 10°
90%
Friday
Partly Cloudy
65°/ 42° 18°/ 6°
0%
Saturday
Sunny
65°/ 45° 18°/ 7°
0%
Sunday
Sunny
65°/ 40° 18°/ 4°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Sunny
62°17°
0%

Night: Warmer, cloudy. Chance of light showers through around midnight. Light showers after midnight. Slight chance of thunderstorms early in the morning. Lows around 60. South winds 5 to 15 mph. Chance of precipitation 80 percent.

Joliet, IL

Tonight
Rain Showers
65°18°
40%
Wednesday
Thunderstorms
68°/ 65° 20°/ 18°
100%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
90%
Friday
Rain Showers
68°/ 48° 20°/ 9°
40%
Saturday
Sunny
68°/ 48° 20°/ 9°
0%
Sunday
Sunny
68°/ 45° 20°/ 7°
0%
Monday
Sunny
65°/ 45° 18°/ 7°
0%
Tuesday
Cloudy
65°18°
0%

Night: Cloudy. A chance of showers late. Near steady temperature in the mid 60s. South winds 5 to 10 mph. Chance of precipitation 40 percent.

Rockford, IL

Tonight
Rain Showers
62°17°
80%
Wednesday
Rain Showers
68°/ 65° 20°/ 18°
100%
Thursday
Thunderstorms
68°/ 52° 20°/ 11°
90%
Friday
Cloudy
65°/ 42° 18°/ 6°
0%
Saturday
Cloudy
65°/ 45° 18°/ 7°
0%
Sunday
Cloudy
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Cloudy
65°18°
0%

Night: Cloudy. A slight chance of showers late in the evening. A chance of showers after midnight, then showers late. Lows in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 80 percent.

Oswego, IL

Tonight
Rain Showers
62°17°
50%
Wednesday
Thunderstorms
68°/ 65° 20°/ 18°
100%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
90%
Friday
Rain Showers
68°/ 48° 20°/ 9°
20%
Saturday
Sunny
68°/ 48° 20°/ 9°
0%
Sunday
Sunny
68°/ 45° 20°/ 7°
0%
Monday
Sunny
65°/ 42° 18°/ 6°
0%
Tuesday
Sunny
65°18°
0%

Night: Cloudy. A chance of showers late. Near steady temperature in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 50 percent.

Calumet City, IL

Tonight
Rain Showers
65°18°
20%
Wednesday
Rain Showers
68°/ 65° 20°/ 18°
100%
Thursday
Thunderstorms
75°/ 60° 24°/ 16°
90%
Friday
Rain Showers
65°/ 48° 18°/ 9°
40%
Saturday
Sunny
65°/ 48° 18°/ 9°
0%
Sunday
Sunny
68°/ 48° 20°/ 9°
0%
Monday
Sunny
62°/ 45° 17°/ 7°
0%
Tuesday
Cloudy
65°18°
0%

Night: Mostly cloudy. A slight chance of showers late. Near steady temperature in the mid 60s. South winds 5 to 10 mph. Chance of precipitation 20 percent.

Rochelle, IL

Tonight
Rain Showers
62°17°
80%
Wednesday
Rain Showers
68°/ 65° 20°/ 18°
100%
Thursday
Thunderstorms
70°/ 52° 21°/ 11°
100%
Friday
Cloudy
68°/ 45° 20°/ 7°
0%
Saturday
Sunny
65°/ 45° 18°/ 7°
0%
Sunday
Cloudy
68°/ 42° 20°/ 6°
0%
Monday
Sunny
62°/ 42° 17°/ 6°
0%
Tuesday
Cloudy
65°18°
0%

Night: Cloudy. A slight chance of showers in the late evening and early morning. Showers late. Lows in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 80 percent.

Names listed above may include county names.

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