NimbocastAlgonquin, IL Weather
Live radar, hourly and 7-day forecast, and National Weather Service alerts for Algonquin, McHenry County, Illinois.
Updated Jul 29, 2026, 2:17 PM local time · Radar refreshes every 5 minutes
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Algonquin
80°F
Wind 10 mph
Humidity 36%
Cloud cover 0%
UV index 7
Alerts 0
Active alerts
✓
No active National Weather Service alerts for Algonquin, IL.
Algonquin weather radar
Light
Heavy
Next 24 hours
Now
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80°F
3 PM
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81°F
4 PM
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81°F
5 PM
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80°F
6 PM
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79°F
7 PM
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77°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
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65°F
12 AM
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64°F
1 AM
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62°F
2 AM
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62°F
3 AM
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61°F
4 AM
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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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68°F
9 AM
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75°F
10 AM
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79°F
11 AM
⛅
82°F
12 PM
⛅
84°F
1 PM
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86°F
7-day forecast
Today
Jul 29
☀️
81°F
58°F
Thu
Jul 30
☁️
89°F
58°F
Fri
Jul 31
🌧️
77°F
64°F
73%
Sat
Aug 1
🌧️
67°F
64°F
74%
Sun
Aug 2
☁️
76°F
59°F
8%
Mon
Aug 3
☀️
80°F
59°F
4%
Tue
Aug 4
☀️
80°F
61°F
6%
Weather near Algonquin
2 mi
Lake in the Hills, IL4 mi
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Huntley, IL9 mi
Elgin, IL11 mi
Streamwood, IL11 mi
Lake Zurich, 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.