Weather Alert
Summit Weather Warning NWS WEATHER ALERT FOR THE SUMMIT, IL AREA - Issued: 310 PM CDT Wed Sep 2 2026 Summit Weather Warning

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Summit, IL Weather - Hour by Hour Forecast

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Summit, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Partly Cloudy. Temperature is 83°F28°C, dew point 74°F23°C, humidity 74%. Wind direction is SW at 5 mph8 km/h with visibility of 10 mi16 km. Barometric pressure is 29.93 in1014 mb.
Rest of Tonight - Partly cloudy. A slight chance of showers and thunderstorms after midnight. Lows in the upper 70s. Southwest winds 5 to 10 mph. Ch.. Full Forecast
Thursday - Mostly cloudy. A slight chance of showers and thunderstorms in the morning. A chance of showers and thunderstorms late. Hot, humid.. Full Forecast

Summit Hourly Weather

24 Hour Forecast Scroll
Thu, Sep 03
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Summit, IL Hourly Weather - Mostly Cloudy - 12:00 AM Summit, IL Hourly Weather - Mostly Cloudy - 1:00 AM Summit, IL Hourly Weather - Mostly Cloudy - 2:00 AM Summit, IL Hourly Weather - Mostly Cloudy - 3:00 AM Summit, IL Hourly Weather - Mostly Cloudy - 4:00 AM Summit, IL Hourly Weather - Mostly Cloudy - 5:00 AM Summit, IL Hourly Weather - Cloudy - 6:00 AM Summit, IL Hourly Weather - Cloudy - 7:00 AM Summit, IL Hourly Weather - Cloudy - 8:00 AM Summit, IL Hourly Weather - Mostly Cloudy - 9:00 AM Summit, IL Hourly Weather - Mostly Cloudy - 10:00 AM Summit, IL Hourly Weather - Mostly Cloudy - 11:00 AM Summit, IL Hourly Weather - Mostly Cloudy - 12:00 PM Summit, IL Hourly Weather - Mostly Cloudy - 1:00 PM Summit, IL Hourly Weather - Mostly Cloudy - 2:00 PM Summit, IL Hourly Weather - Partly Cloudy - 3:00 PM Summit, IL Hourly Weather - Partly Cloudy - 4:00 PM Summit, IL Hourly Weather - Partly Cloudy - 5:00 PM Summit, IL Hourly Weather - Partly Cloudy - 6:00 PM Summit, IL Hourly Weather - Partly Cloudy - 7:00 PM Summit, IL Hourly Weather - Partly Cloudy - 8:00 PM Summit, IL Hourly Weather - Mostly Cloudy - 9:00 PM Summit, IL Hourly Weather - Mostly Cloudy - 10:00 PM Summit, IL Hourly Weather - Mostly Cloudy - 11:00 PM
Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy
82°F28°C 80°F27°C 79°F26°C 78°F26°C 77°F25°C 76°F24°C 76°F24°C 75°F24°C 77°F25°C 79°F26°C 81°F27°C 83°F28°C 84°F29°C 86°F30°C 87°F31°C 88°F31°C 89°F32°C 88°F31°C 87°F31°C 86°F30°C 85°F29°C 83°F28°C 82°F28°C 81°F27°C
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8% 8% 26% 26% 26% 26% 26% 26% 9% 9% 9% 9% 9% 9% 5% 5% 5% 5% 5% 5% 10% 10% 10% 10%
71°F22°C 71°F22°C 71°F22°C 70°F21°C 70°F21°C 70°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 69°F21°C 68°F20°C 68°F20°C 68°F20°C 69°F21°C 69°F21°C 69°F21°C 68°F20°C 68°F20°C 69°F21°C 69°F21°C 70°F21°C 70°F21°C
69% 74% 77% 77% 79% 82% 79% 82% 76% 72% 67% 63% 59% 55% 53% 54% 52% 54% 53% 55% 59% 63% 67% 69%
SSE SSE SE E E E ENE ENE ESE SSE SSE SW SW SSW SW S SE SE ESE E ESE SE SE SE
7 mph 7 mph 7 mph 9 mph 9 mph 9 mph 6 mph 6 mph 6 mph 6 mph 6 mph 6 mph 7 mph 7 mph 7 mph 8 mph 8 mph 8 mph 6 mph 6 mph 6 mph 5 mph 5 mph 5 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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POP = Probability of Precipitation. ** Indicates missing data/values from KMDW model statistics.

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Prob Precip % = Probability of Precipitation.

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

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