NimbocastGrayslake, IL Weather
Live radar, hourly and 7-day forecast, and National Weather Service alerts for Grayslake, Lake County, Illinois.
Updated Jul 29, 2026, 2:17 PM local time · Radar refreshes every 5 minutes
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Grayslake
80°F
Wind 9 mph
Humidity 33%
Cloud cover 0%
UV index 7
Alerts 0
Active alerts
✓
No active National Weather Service alerts for Grayslake, IL.
Grayslake weather radar
Light
Heavy
Next 24 hours
Now
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80°F
3 PM
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80°F
4 PM
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80°F
5 PM
☀️
79°F
6 PM
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78°F
7 PM
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77°F
8 PM
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73°F
9 PM
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69°F
10 PM
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67°F
11 PM
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66°F
12 AM
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65°F
1 AM
☀️
64°F
2 AM
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62°F
3 AM
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61°F
4 AM
☀️
60°F
5 AM
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59°F
6 AM
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58°F
7 AM
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61°F
8 AM
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69°F
9 AM
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75°F
10 AM
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80°F
11 AM
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83°F
12 PM
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85°F
1 PM
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88°F
7-day forecast
Today
Jul 29
☀️
80°F
58°F
Thu
Jul 30
☁️
90°F
58°F
Fri
Jul 31
🌦️
82°F
64°F
73%
Sat
Aug 1
🌦️
67°F
64°F
76%
Sun
Aug 2
☁️
75°F
59°F
9%
Mon
Aug 3
🌤️
83°F
58°F
3%
Tue
Aug 4
☀️
84°F
63°F
4%
Weather near Grayslake
3 mi
Round Lake Beach, IL3 mi
Round Lake, IL6 mi
Mundelein, IL6 mi
Libertyville, IL7 mi
Gurnee, IL9 mi
Vernon Hills, IL10 mi
Waukegan, IL10 mi
North Chicago, 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.