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Mendon Weather Warning NWS WEATHER ALERT FOR THE MENDON, IL AREA - Issued: 249 PM CDT Fri Sep 4 2026 Mendon Weather Warning

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Mendon, IL Weather - Hour by Hour Forecast

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Mendon, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 79°F26°C, dew point 71°F22°C, humidity 76%. Wind direction is S at 5 mph8 km/h with visibility of 10 mi16 km. Barometric pressure is 29.94 in1013 mb.
Tonight - Mostly clear. Lows in the mid 70s. Southwest winds around 5 mph this evening, becoming light and variable. Heat index values up to.. Full Forecast
Saturday - Sunny, hot with highs in the upper 90s. Northwest winds around 5 mph. Heat index values up to 106... Full Forecast

Mendon Hourly Weather

24 Hour Forecast Scroll
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Mendon, IL Hourly Weather - Partly Cloudy - 12:00 AM Mendon, IL Hourly Weather - Partly Cloudy - 1:00 AM Mendon, IL Hourly Weather - Partly Cloudy - 2:00 AM Mendon, IL Hourly Weather - Partly Cloudy - 3:00 AM Mendon, IL Hourly Weather - Partly Cloudy - 4:00 AM Mendon, IL Hourly Weather - Partly Cloudy - 5:00 AM Mendon, IL Hourly Weather - Partly Cloudy - 6:00 AM Mendon, IL Hourly Weather - Partly Cloudy - 7:00 AM Mendon, IL Hourly Weather - Partly Cloudy - 8:00 AM Mendon, IL Hourly Weather - Clear - 9:00 AM Mendon, IL Hourly Weather - Clear - 10:00 AM Mendon, IL Hourly Weather - Clear - 11:00 AM Mendon, IL Hourly Weather - Clear - 12:00 PM Mendon, IL Hourly Weather - Clear - 1:00 PM Mendon, IL Hourly Weather - Clear - 2:00 PM Mendon, IL Hourly Weather - Clear - 3:00 PM Mendon, IL Hourly Weather - Clear - 4:00 PM Mendon, IL Hourly Weather - Clear - 5:00 PM Mendon, IL Hourly Weather - Clear - 6:00 PM Mendon, IL Hourly Weather - Clear - 7:00 PM Mendon, IL Hourly Weather - Clear - 8:00 PM Mendon, IL Hourly Weather - Clear - 9:00 PM Mendon, IL Hourly Weather - Clear - 10:00 PM Mendon, IL Hourly Weather - Clear - 11:00 PM
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Hour (CDT)
Weather
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POP = Probability of Precipitation. ** Indicates missing data/values from KUIN model statistics.

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Prob Precip % = Probability of Precipitation.

Mendon 36 Hour Forecast

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

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