Weather Alert
Marion Weather Warning NWS WEATHER ALERT FOR THE MARION, IL AREA - Issued: 401 AM CDT Wed Sep 16 2026 Marion Weather Warning

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Marion, IL Weather - Hour by Hour Forecast

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Marion, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Overcast. Temperature is 80°F27°C, dew point 71°F22°C, humidity 74%. Wind direction is SSW at 7 mph11 km/h with visibility of 10 mi16 km. Barometric pressure is 30.28 in1025 mb.
Today - Sunny, hot with highs in the upper 90s. Southwest winds 5 to 10 mph. Highest heat index readings heat index readings up to 105 thi.. Full Forecast
Tonight - Mostly clear. Lows in the mid 70s. South winds around 5 mph... Full Forecast

Marion Hourly Weather

24 Hour Forecast Scroll
Wed, Sep 16
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Marion, IL Hourly Weather - Clear - 10:00 AM Marion, IL Hourly Weather - Clear - 11:00 AM Marion, IL Hourly Weather - Clear - 12:00 PM Marion, IL Hourly Weather - Clear - 1:00 PM Marion, IL Hourly Weather - Clear - 2:00 PM Marion, IL Hourly Weather - Partly Cloudy - 3:00 PM Marion, IL Hourly Weather - Partly Cloudy - 4:00 PM Marion, IL Hourly Weather - Partly Cloudy - 5:00 PM Marion, IL Hourly Weather - Partly Cloudy - 6:00 PM Marion, IL Hourly Weather - Partly Cloudy - 7:00 PM Marion, IL Hourly Weather - Partly Cloudy - 8:00 PM Marion, IL Hourly Weather - Partly Cloudy - 9:00 PM Marion, IL Hourly Weather - Partly Cloudy - 10:00 PM Marion, IL Hourly Weather - Partly Cloudy - 11:00 PM Marion, IL Hourly Weather - Clear - 12:00 AM Marion, IL Hourly Weather - Clear - 1:00 AM Marion, IL Hourly Weather - Clear - 2:00 AM Marion, IL Hourly Weather - Partly Cloudy - 3:00 AM Marion, IL Hourly Weather - Partly Cloudy - 4:00 AM Marion, IL Hourly Weather - Partly Cloudy - 5:00 AM Marion, IL Hourly Weather - Mostly Cloudy - 6:00 AM Marion, IL Hourly Weather - Mostly Cloudy - 7:00 AM Marion, IL Hourly Weather - Mostly Cloudy - 8:00 AM Marion, IL Hourly Weather - Clear - 9:00 AM
Clear Clear Clear Clear Clear Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Clear Clear Clear Partly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Clear
86°F30°C 89°F32°C 91°F33°C 94°F34°C 95°F35°C 96°F36°C 97°F36°C 94°F34°C 92°F33°C 89°F32°C 86°F30°C 83°F28°C 80°F27°C 79°F26°C 77°F25°C 76°F24°C 75°F24°C 75°F24°C 74°F23°C 74°F23°C 75°F24°C 75°F24°C 79°F26°C 83°F28°C
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3% 3% 3% 3% 8% 8% 8% 8% 8% 8% 3% 3% 3% 3% 3% 3% 2% 2% 2% 2% 2% 2% 7% 7%
72°F22°C 72°F22°C 71°F22°C 71°F22°C 70°F21°C 70°F21°C 69°F21°C 69°F21°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 68°F20°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 68°F20°C 68°F20°C
63% 57% 52% 48% 45% 43% 41% 44% 46% 50% 55% 61% 67% 69% 74% 76% 79% 76% 79% 79% 76% 76% 69% 61%
SSE SSE SW SW SW SSE SSE S S S S S SSE SSE S S S S SSE SSE S S SW SW
6 mph 6 mph 7 mph 7 mph 7 mph 7 mph 7 mph 7 mph 5 mph 5 mph 5 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 7 mph 7 mph 7 mph 10 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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Temperature
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POP
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.

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

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