Weather Alert
Harmon Weather Warning NWS WEATHER ALERT FOR THE HARMON, IL AREA - Issued: 312 PM CDT Thu Sep 3 2026 Harmon Weather Warning

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Harmon, IL Weather - Hour by Hour Forecast

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Harmon, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Light Rain. Temperature is 83°F28°C, dew point 78°F26°C, humidity 85%. Wind direction is N at 0 mph0 km/h with visibility of 6 mi10 km. Barometric pressure is 29.89 in1012 mb.
Tonight - Clear. Lows in the lower 70s. South winds around 5 mph... Full Forecast
Friday - Partly cloudy in the morning, then clearing. Hot, humid with highs in the lower 90s. Southwest winds 5 to 10 mph. Heat index value.. Full Forecast

Harmon Hourly Weather

24 Hour Forecast Scroll
Thu, Sep 03
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Harmon, IL Hourly Weather - Clear - 8:00 PM Harmon, IL Hourly Weather - Mostly Clear - 9:00 PM Harmon, IL Hourly Weather - Mostly Clear - 10:00 PM Harmon, IL Hourly Weather - Mostly Clear - 11:00 PM Harmon, IL Hourly Weather - Partly Cloudy - 12:00 AM Harmon, IL Hourly Weather - Partly Cloudy - 1:00 AM Harmon, IL Hourly Weather - Partly Cloudy - 2:00 AM Harmon, IL Hourly Weather - Mostly Cloudy - 3:00 AM Harmon, IL Hourly Weather - Mostly Cloudy - 4:00 AM Harmon, IL Hourly Weather - Mostly Cloudy - 5:00 AM Harmon, IL Hourly Weather - Partly Cloudy - 6:00 AM Harmon, IL Hourly Weather - Partly Cloudy - 7:00 AM Harmon, IL Hourly Weather - Partly Cloudy - 8:00 AM Harmon, IL Hourly Weather - Clear - 9:00 AM Harmon, IL Hourly Weather - Clear - 10:00 AM Harmon, IL Hourly Weather - Clear - 11:00 AM Harmon, IL Hourly Weather - Clear - 12:00 PM Harmon, IL Hourly Weather - Clear - 1:00 PM Harmon, IL Hourly Weather - Clear - 2:00 PM Harmon, IL Hourly Weather - Clear - 3:00 PM Harmon, IL Hourly Weather - Clear - 4:00 PM Harmon, IL Hourly Weather - Clear - 5:00 PM Harmon, IL Hourly Weather - Clear - 6:00 PM Harmon, IL Hourly Weather - Clear - 7:00 PM
Clear Mostly Clear Mostly Clear Mostly Clear Partly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Partly Cloudy Partly Cloudy Partly Cloudy Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear Clear
85°F29°C 81°F27°C 77°F25°C 76°F24°C 75°F24°C 74°F23°C 73°F23°C 73°F23°C 72°F22°C 72°F22°C 71°F22°C 71°F22°C 74°F23°C 78°F26°C 81°F27°C 84°F29°C 86°F30°C 89°F32°C 90°F32°C 90°F32°C 91°F33°C 89°F32°C 86°F30°C 84°F29°C
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4% 4% 4% 4% 4% 4% 14% 14% 14% 14% 14% 14% 1% 1% 1% 1% 1% 1% 0% 0% 0% 0% 0% 0%
72°F22°C 72°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 69°F21°C 70°F21°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
65% 74% 82% 82% 84% 84% 87% 84% 87% 87% 90% 90% 84% 77% 72% 65% 59% 54% 50% 50% 47% 50% 55% 59%
ENE NE NE NE NE ENE SSE SSW N N N N SSW SE NE NE NE NE NNE NNE N NNE NE NE
3 mph 3 mph 3 mph 3 mph 2 mph 2 mph 2 mph 2 mph 2 mph 2 mph 3 mph 3 mph 3 mph 7 mph 7 mph 7 mph 6 mph 6 mph 6 mph 7 mph 7 mph 7 mph 7 mph 7 mph
10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 10 mi16 km 6 mi10 km 6 mi10 km 5 mi8 km 5 mi8 km 5 mi8 km 5 mi8 km 6 mi10 km 6 mi10 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
Clouds
Temperature
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POP
Dewpoint
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POP = Probability of Precipitation. ** Indicates missing data/values from KSQI model statistics.

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Prob Precip % = Probability of Precipitation.

Harmon 36 Hour Forecast

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

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