Weather Alert
Izaac Walton Lake Weather Warning NWS WEATHER ALERT FOR THE IZAAC WALTON LAKE, IL AREA - Issued: 139 AM CDT Sat Aug 8 2026 Izaac Walton Lake Weather Warning

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Izaac Walton Lake, IL Weather - Hour by Hour Forecast

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Izaac Walton Lake, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Partly Cloudy. Temperature is 87°F31°C, dew point 73°F23°C, humidity 62%. Wind direction is SSW at 6 mph10 km/h with visibility of 10 mi16 km. Barometric pressure is 30.05 in1018 mb.
Today - Sunny. Near steady temperature around 90. Southwest winds around 5 mph... Full Forecast
Tonight - Clear. Patchy fog after midnight. Lows in the lower 70s. South winds around 5 mph in the evening, becoming light and variable... Full Forecast

Izaac Walton Lake Hourly Weather

24 Hour Forecast Scroll
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Izaac Walton Lake, IL Hourly Weather - Partly Cloudy - 4:00 PM Izaac Walton Lake, IL Hourly Weather - Partly Cloudy - 5:00 PM Izaac Walton Lake, IL Hourly Weather - Clear - 6:00 PM Izaac Walton Lake, IL Hourly Weather - Clear - 7:00 PM Izaac Walton Lake, IL Hourly Weather - Clear - 8:00 PM Izaac Walton Lake, IL Hourly Weather - Clear - 9:00 PM Izaac Walton Lake, IL Hourly Weather - Clear - 10:00 PM Izaac Walton Lake, IL Hourly Weather - Clear - 11:00 PM Izaac Walton Lake, IL Hourly Weather - Clear - 12:00 AM Izaac Walton Lake, IL Hourly Weather - Clear - 1:00 AM Izaac Walton Lake, IL Hourly Weather - Clear - 2:00 AM Izaac Walton Lake, IL Hourly Weather - Clear - 3:00 AM Izaac Walton Lake, IL Hourly Weather - Clear - 4:00 AM Izaac Walton Lake, IL Hourly Weather - Clear - 5:00 AM Izaac Walton Lake, IL Hourly Weather - Mostly Clear - 6:00 AM Izaac Walton Lake, IL Hourly Weather - Mostly Clear - 7:00 AM Izaac Walton Lake, IL Hourly Weather - Mostly Clear - 8:00 AM Izaac Walton Lake, IL Hourly Weather - Clear - 9:00 AM Izaac Walton Lake, IL Hourly Weather - Clear - 10:00 AM Izaac Walton Lake, IL Hourly Weather - Clear - 11:00 AM Izaac Walton Lake, IL Hourly Weather - Mostly Clear - 12:00 PM Izaac Walton Lake, IL Hourly Weather - Mostly Clear - 1:00 PM Izaac Walton Lake, IL Hourly Weather - Mostly Clear - 2:00 PM Izaac Walton Lake, IL Hourly Weather - Mostly Clear - 3:00 PM
Partly Cloudy Partly Cloudy Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Mostly Clear Mostly Clear Mostly Clear Clear Clear Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear
90°F32°C 89°F32°C 88°F31°C 87°F31°C 84°F29°C 80°F27°C 77°F25°C 76°F24°C 74°F23°C 73°F23°C 73°F23°C 72°F22°C 72°F22°C 72°F22°C 72°F22°C 72°F22°C 75°F24°C 79°F26°C 82°F28°C 84°F29°C 87°F31°C 89°F32°C 90°F32°C 91°F33°C
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0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 0% 1% 1%
71°F22°C 71°F22°C 72°F22°C 72°F22°C 72°F22°C 73°F23°C 73°F23°C 72°F22°C 72°F22°C 71°F22°C 71°F22°C 70°F21°C 70°F21°C 70°F21°C 70°F21°C 70°F21°C 71°F22°C 71°F22°C 72°F22°C 72°F22°C 72°F22°C 72°F22°C 72°F22°C 72°F22°C
54% 56% 59% 61% 67% 79% 88% 87% 93% 93% 93% 93% 93% 93% 93% 93% 87% 77% 72% 67% 61% 57% 56% 54%
S S S S S S S S S SSE SSE SSE SSE S S S S S SSE SSE SSE SSE SSE S
7 mph 7 mph 5 mph 5 mph 5 mph 3 mph 3 mph 3 mph 3 mph 3 mph 3 mph 2 mph 2 mph 2 mph 4 mph 4 mph 4 mph 7 mph 7 mph 7 mph 11 mph 11 mph 11 mph 11 mph
10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km
Hour (CDT)
Weather
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Dewpoint
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POP = Probability of Precipitation. ** Indicates missing data/values from KMWA model statistics.

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Prob Precip % = Probability of Precipitation.

Izaac Walton Lake 36 Hour Forecast

POP = Probability of Precipitation. ** Indicates missing data/values from model statistics.

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