NimbocastLake Forest, IL Weather
Live radar, hourly and 7-day forecast, and National Weather Service alerts for Lake Forest, Lake County, Illinois.
Updated Jul 29, 2026, 2:17 PM local time · Radar refreshes every 5 minutes
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Lake Forest
76°F
Wind 10 mph
Humidity 56%
Cloud cover 0%
UV index 7
Alerts 0
Active alerts
✓
No active National Weather Service alerts for Lake Forest, IL.
Lake Forest weather radar
Light
Heavy
Next 24 hours
Now
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76°F
3 PM
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77°F
4 PM
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76°F
5 PM
☀️
76°F
6 PM
☀️
75°F
7 PM
☀️
74°F
8 PM
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72°F
9 PM
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69°F
10 PM
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67°F
11 PM
☀️
66°F
12 AM
☀️
65°F
1 AM
☀️
65°F
2 AM
☀️
64°F
3 AM
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63°F
4 AM
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62°F
5 AM
☀️
62°F
6 AM
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61°F
7 AM
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65°F
8 AM
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71°F
9 AM
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78°F
10 AM
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82°F
11 AM
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85°F
12 PM
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86°F
1 PM
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85°F
7-day forecast
Today
Jul 29
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77°F
61°F
Thu
Jul 30
☁️
86°F
61°F
Fri
Jul 31
🌦️
82°F
67°F
72%
Sat
Aug 1
🌧️
68°F
65°F
74%
Sun
Aug 2
☁️
76°F
62°F
11%
Mon
Aug 3
☀️
81°F
63°F
4%
Tue
Aug 4
☀️
84°F
67°F
4%
Weather near Lake Forest
5 mi
North Chicago, IL6 mi
Highland Park, IL6 mi
Libertyville, IL6 mi
Deerfield, IL7 mi
Waukegan, IL8 mi
Mundelein, IL8 mi
Gurnee, IL8 mi
Vernon Hills, IL
Alerts are relayed from the National Weather Service and may lag
the official source. In a life-threatening situation always follow
weather.gov and local emergency
broadcasts.