Deep Lake, IL Weather Forecast & Current Conditions

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Deep Lake Weather Map
UTC Time: 9/29/2026, 15:21
Your Time:
Aeronautical Observation: Automated synoptic observations via NWS Gateway.
Auto-refresh in: 5:02

Deep Lake, IL Regional Weather

Expires:202609291600;;250961
ASUS43 KLOT 291506
RWRIL 

ILLINOIS REGIONAL WEATHER ROUNDUP
NATIONAL WEATHER SERVICE CHICAGO/ROMEOVILLE IL
1000 AM 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>023-291600-
NORTHEAST ILLINOIS
  
CITY           SKY/WX    TMP DP  RH WIND       PRES   REMARKS
CHICAGO-OHARE  MOSUNNY   65  54  67 SW3       30.04F TC  18           
CHICAGO-MIDWAY MOSUNNY   65  55  70 W5        30.05F TC  18           
AURORA         SUNNY     64  56  75 S6        30.05F TC  18           
JOLIET*        SUNNY     66  57  72 SW3       30.06F TC  19           
WAUKEGAN       PTSUNNY   60  60 100 S5        30.05S FOG     TC  16   
DUPAGE AIRPORT SUNNY     64  57  78 CALM      30.05F TC  18           
KANKAKEE*      SUNNY     67  56  67 E5        30.07S TC  19           
WHEELING       SUNNY     60  59  96 SW3       30.06F TC  16           
LANSING*       SUNNY     66  56  70 SW7       30.06S TC  19           
NORTHERLY ISL*   N/A     65  54  67 SW3         N/A  TC  18           
$$


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

Deep Lake, IL

Today
Mostly Cloudy
75°/ 62° 24°/ 17°
40%
Wednesday
Rain Showers
68°/ 65° 20°/ 18°
80%
Thursday
Thunderstorms
72°/ 55° 22°/ 13°
90%
Friday
Rain Showers
62°/ 48° 17°/ 9°
40%
Saturday
Cloudy
62°/ 48° 17°/ 9°
0%
Sunday
Cloudy
65°/ 45° 18°/ 7°
0%
Monday
Sunny
62°17°
0%

Day: Mostly cloudy in the morning, then becoming partly cloudy. Areas of fog early in the morning. Highs in the mid 70s inland, but only around 70 near the lake. South winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers after midnight. A chance of showers late. Lows in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 40 percent.

Kenosha, WI

Today
Partly Cloudy
75°/ 60° 24°/ 16°
40%
Wednesday
Thunderstorms
68°/ 62° 20°/ 17°
80%
Thursday
Thunderstorms
70°/ 52° 21°/ 11°
90%
Friday
Rain Showers
62°/ 48° 17°/ 9°
40%
Saturday
Sunny
62°/ 48° 17°/ 9°
0%
Sunday
Partly Cloudy
65°/ 45° 18°/ 7°
0%
Monday
Sunny
62°17°
0%

Day: Sunny in the morning then becoming partly sunny. Patchy fog in the morning. Highs in the mid 70s. South winds up to 10 mph.

Night: Warmer, cloudy. A 40 percent chance of light showers after midnight. Lows around 60. South winds 5 to 10 mph.

Crystal Lake, IL

Today
Mostly Cloudy
75°/ 62° 24°/ 17°
50%
Wednesday
Rain Showers
68°/ 65° 20°/ 18°
90%
Thursday
Thunderstorms
70°/ 55° 21°/ 13°
90%
Friday
Rain Showers
65°/ 48° 18°/ 9°
40%
Saturday
Cloudy
65°/ 48° 18°/ 9°
0%
Sunday
Cloudy
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°17°
0%

Day: Partly cloudy in the morning, then becoming mostly cloudy. Areas of fog early in the morning. Highs in the mid 70s. South winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers after midnight. A chance of showers late. Lows in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 50 percent.

Whitewater, WI

Today
Partly Cloudy
75°/ 62° 24°/ 17°
40%
Wednesday
Thunderstorms
68°/ 62° 20°/ 17°
90%
Thursday
Thunderstorms
68°/ 52° 20°/ 11°
90%
Friday
Rain Showers
62°/ 45° 17°/ 7°
30%
Saturday
Sunny
65°/ 45° 18°/ 7°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°17°
0%

Day: Sunny in the morning then becoming partly sunny. Patchy fog in the morning. Highs in the mid 70s. South winds up to 10 mph.

Night: Warmer, cloudy. A 40 percent chance of light showers in the late evening and overnight. Lows in the lower 60s. South winds 5 to 10 mph.

Racine, WI

Today
Partly Cloudy
75°/ 60° 24°/ 16°
40%
Wednesday
Thunderstorms
68°/ 62° 20°/ 17°
90%
Thursday
Thunderstorms
70°/ 52° 21°/ 11°
90%
Friday
Rain Showers
62°/ 45° 17°/ 7°
30%
Saturday
Sunny
62°/ 45° 17°/ 7°
0%
Sunday
Partly Cloudy
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°17°
0%

Day: Sunny in the morning then becoming partly sunny. Patchy fog in the morning. Highs in the mid 70s. South winds up to 10 mph.

Night: Warmer, cloudy. A 40 percent chance of light rain showers in the late evening and overnight. Lows around 60. South winds 5 to 10 mph.

Evanston, IL

Today
Mostly Cloudy
75°/ 62° 24°/ 17°
40%
Wednesday
Rain Showers
72°/ 65° 22°/ 18°
70%
Thursday
Thunderstorms
72°/ 58° 22°/ 14°
90%
Friday
Rain Showers
65°/ 52° 18°/ 11°
40%
Saturday
Cloudy
62°/ 52° 17°/ 11°
0%
Sunday
Cloudy
65°/ 48° 18°/ 9°
0%
Monday
Sunny
62°17°
0%

Day: Mostly cloudy in the morning, then becoming partly cloudy. Areas of fog early in the morning. Highs in the mid 70s. South winds 5 to 10 mph.

Night: Mostly cloudy. A chance of showers late. Lows in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 40 percent.

Aurora, IL

Today
Cloudy
75°/ 62° 24°/ 17°
40%
Wednesday
Rain Showers
72°/ 65° 22°/ 18°
80%
Thursday
Thunderstorms
72°/ 55° 22°/ 13°
90%
Friday
Rain Showers
65°/ 48° 18°/ 9°
50%
Saturday
Cloudy
65°/ 48° 18°/ 9°
0%
Sunday
Cloudy
65°/ 45° 18°/ 7°
0%
Monday
Sunny
62°17°
0%

Day: Partly cloudy. Areas of fog early in the morning. Highs in the mid 70s. South winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers after midnight. A chance of showers late. Lows in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 40 percent.

Naperville, IL

Today
Cloudy
75°/ 62° 24°/ 17°
40%
Wednesday
Rain Showers
72°/ 68° 22°/ 20°
70%
Thursday
Thunderstorms
72°/ 58° 22°/ 14°
90%
Friday
Rain Showers
65°/ 52° 18°/ 11°
50%
Saturday
Cloudy
65°/ 50° 18°/ 10°
0%
Sunday
Cloudy
65°/ 48° 18°/ 9°
0%
Monday
Sunny
62°17°
0%

Day: Partly cloudy. Areas of fog early in the morning. Highs in the mid 70s. South winds 5 to 10 mph.

Night: Mostly cloudy. A chance of showers late. Lows in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 40 percent.

Chicago, IL

Today
Cloudy
75°/ 62° 24°/ 17°
20%
Wednesday
Rain Showers
72°/ 68° 22°/ 20°
70%
Thursday
Thunderstorms
75°/ 60° 24°/ 16°
90%
Friday
Rain Showers
62°/ 52° 17°/ 11°
50%
Saturday
Cloudy
62°/ 52° 17°/ 11°
0%
Sunday
Cloudy
65°/ 50° 18°/ 10°
0%
Monday
Sunny
62°17°
0%

Day: Partly cloudy. Areas of fog early in the morning. Highs in the mid 70s inland, but only in the lower 70s near the lake. South winds 5 to 10 mph.

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

Milwaukee, WI

Today
Partly Cloudy
72°/ 60° 22°/ 16°
50%
Wednesday
Rain Showers
68°/ 62° 20°/ 17°
90%
Thursday
Thunderstorms
68°/ 52° 20°/ 11°
90%
Friday
Rain Showers
62°/ 48° 17°/ 9°
30%
Saturday
Sunny
62°/ 48° 17°/ 9°
0%
Sunday
Sunny
62°/ 45° 17°/ 7°
0%
Monday
Sunny
58°14°
0%

Day: Sunny in the morning then becoming partly sunny. Highs in the lower 70s. South winds up to 10 mph.

Night: Warmer, cloudy. A 50 percent chance of light rain showers in the late evening and overnight. Lows around 60. South winds 5 to 10 mph.

Waukesha, WI

Today
Partly Cloudy
75°/ 60° 24°/ 16°
60%
Wednesday
Rain Showers
68°/ 62° 20°/ 17°
90%
Thursday
Thunderstorms
68°/ 52° 20°/ 11°
90%
Friday
Rain Showers
62°/ 45° 17°/ 7°
20%
Saturday
Sunny
62°/ 48° 17°/ 9°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
60°16°
0%

Day: Sunny in the morning then becoming partly sunny. Highs in the mid 70s. South winds up to 10 mph.

Night: Warmer, cloudy. Chance of light rain showers in the late evening and early morning. Light rain showers likely early in the morning. Lows around 60. South winds 5 to 10 mph. Chance of showers 60 percent.

Belvidere, IL

Today
Mostly Cloudy
75°/ 62° 24°/ 17°
50%
Wednesday
Rain Showers
68°/ 65° 20°/ 18°
90%
Thursday
Thunderstorms
70°/ 52° 21°/ 11°
90%
Friday
Rain Showers
65°/ 45° 18°/ 7°
40%
Saturday
Cloudy
65°/ 48° 18°/ 9°
0%
Sunday
Cloudy
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°17°
0%

Day: Partly cloudy in the morning, then becoming mostly cloudy. Areas of fog early in the morning. Highs in the mid 70s. South winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers late in the evening. A chance of showers after midnight. Lows in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 50 percent.

DeKalb, IL

Today
Mostly Cloudy
75°/ 62° 24°/ 17°
50%
Wednesday
Rain Showers
72°/ 65° 22°/ 18°
80%
Thursday
Thunderstorms
72°/ 55° 22°/ 13°
90%
Friday
Rain Showers
65°/ 48° 18°/ 9°
50%
Saturday
Cloudy
65°/ 48° 18°/ 9°
0%
Sunday
Cloudy
65°/ 45° 18°/ 7°
0%
Monday
Sunny
62°17°
0%

Day: Partly cloudy in the morning, then becoming mostly cloudy. Areas of fog early in the morning. Highs in the mid 70s. South winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers after midnight. A chance of showers late. Lows in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 50 percent.

Watertown, WI

Today
Partly Cloudy
75°/ 60° 24°/ 16°
70%
Wednesday
Thunderstorms
68°/ 62° 20°/ 17°
90%
Thursday
Rain Showers
68°/ 52° 20°/ 11°
80%
Friday
Rain Showers
65°/ 42° 18°/ 6°
20%
Saturday
Sunny
65°/ 45° 18°/ 7°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°17°
0%

Day: Sunny in the morning then becoming partly sunny. Highs in the mid 70s. South winds up to 10 mph.

Night: Warmer, cloudy. Chance of light showers late in the evening. Light showers likely after midnight. Lows around 60. South winds 5 to 10 mph. Chance of showers 70 percent.

Janesville, WI

Today
Mostly Cloudy
75°/ 62° 24°/ 17°
50%
Wednesday
Thunderstorms
68°/ 62° 20°/ 17°
90%
Thursday
Thunderstorms
68°/ 52° 20°/ 11°
90%
Friday
Rain Showers
65°/ 45° 18°/ 7°
30%
Saturday
Sunny
65°/ 45° 18°/ 7°
0%
Sunday
Sunny
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°17°
0%

Day: Sunny in the morning then becoming mostly cloudy. Highs in the mid 70s. South winds up to 10 mph.

Night: Warmer, cloudy. A 50 percent chance of light showers in the late evening and overnight. Lows in the lower 60s. South winds 5 to 10 mph.

Rockford, IL

Today
Mostly Cloudy
75°/ 62° 24°/ 17°
70%
Wednesday
Rain Showers
68°/ 65° 20°/ 18°
90%
Thursday
Thunderstorms
68°/ 52° 20°/ 11°
90%
Friday
Rain Showers
65°/ 45° 18°/ 7°
40%
Saturday
Cloudy
65°/ 48° 18°/ 9°
0%
Sunday
Cloudy
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°17°
0%

Day: Partly cloudy in the morning, then becoming mostly cloudy. Patchy fog early in the morning. Highs in the mid 70s. South winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers late in the evening. A chance of showers after midnight, then showers likely late. Lows in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 70 percent.

Joliet, IL

Today
Cloudy
78°/ 62° 26°/ 17°
30%
Wednesday
Rain Showers
72°/ 68° 22°/ 20°
70%
Thursday
Thunderstorms
75°/ 60° 24°/ 16°
90%
Friday
Rain Showers
65°/ 52° 18°/ 11°
50%
Saturday
Cloudy
65°/ 52° 18°/ 11°
0%
Sunday
Cloudy
65°/ 48° 18°/ 9°
0%
Monday
Sunny
62°17°
0%

Day: Partly cloudy. Areas of fog early in the morning. Highs in the upper 70s. South winds around 5 mph.

Night: Mostly cloudy. A chance of showers late. Lows in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 30 percent.

Oswego, IL

Today
Cloudy
78°/ 62° 26°/ 17°
40%
Wednesday
Rain Showers
75°/ 68° 24°/ 20°
70%
Thursday
Thunderstorms
75°/ 58° 24°/ 14°
90%
Friday
Rain Showers
65°/ 50° 18°/ 10°
50%
Saturday
Cloudy
65°/ 50° 18°/ 10°
0%
Sunday
Cloudy
68°/ 45° 20°/ 7°
0%
Monday
Sunny
65°18°
0%

Day: Partly cloudy. Areas of fog early in the morning. Highs in the upper 70s. South winds around 5 mph.

Night: Mostly cloudy. A chance of showers late. Lows in the lower 60s. South winds around 5 mph. Chance of precipitation 40 percent.

Calumet City, IL

Today
Cloudy
78°/ 62° 26°/ 17°
20%
Wednesday
Rain Showers
72°/ 68° 22°/ 20°
50%
Thursday
Thunderstorms
75°/ 60° 24°/ 16°
90%
Friday
Rain Showers
65°/ 52° 18°/ 11°
50%
Saturday
Mostly Cloudy
65°/ 52° 18°/ 11°
0%
Sunday
Cloudy
65°/ 48° 18°/ 9°
0%
Monday
Sunny
62°17°
0%

Day: Partly cloudy. Areas of fog early in the morning. Highs in the upper 70s. South winds around 5 mph.

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

Rochelle, IL

Today
Mostly Cloudy
75°/ 62° 24°/ 17°
50%
Wednesday
Rain Showers
70°/ 65° 21°/ 18°
90%
Thursday
Thunderstorms
72°/ 55° 22°/ 13°
90%
Friday
Rain Showers
65°/ 45° 18°/ 7°
40%
Saturday
Cloudy
65°/ 48° 18°/ 9°
0%
Sunday
Cloudy
65°/ 42° 18°/ 6°
0%
Monday
Sunny
62°17°
0%

Day: Partly cloudy in the morning, then becoming mostly cloudy. Patchy fog early in the morning. Highs in the mid 70s. South winds 5 to 10 mph.

Night: Mostly cloudy. A slight chance of showers late in the evening. A chance of showers after midnight. Lows in the lower 60s. South winds 5 to 10 mph. Chance of precipitation 50 percent.

Names listed above may include county names.

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