Weather Alert
Cottagegrove Weather Warning NWS WEATHER ALERT FOR THE COTTAGEGROVE, IL AREA - Issued: 420 AM CDT Sun Sep 20 2026 Cottagegrove Weather Warning

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Cottagegrove, IL Weather - Hour by Hour Forecast

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Cottagegrove, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 92°F34°C, dew point 64°F18°C, humidity 39%. Wind direction is SW at 7 mph11 km/h with visibility of 10 mi16 km. Barometric pressure is 29.9 in1012 mb.
Today - Mostly sunny. Hot with highs in the upper 90s. West winds 5 to 10 mph... Full Forecast
Tonight - Partly cloudy. A chance of showers and thunderstorms after midnight. Lows in the upper 60s. Northwest winds around 5 mph, becoming.. Full Forecast

Cottagegrove Hourly Weather

24 Hour Forecast Scroll
Sun, Sep 20
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Cottagegrove, IL Hourly Weather - Clear - 1:00 PM Cottagegrove, IL Hourly Weather - Clear - 2:00 PM Cottagegrove, IL Hourly Weather - Clear - 3:00 PM Cottagegrove, IL Hourly Weather - Clear - 4:00 PM Cottagegrove, IL Hourly Weather - Clear - 5:00 PM Cottagegrove, IL Hourly Weather - Mostly Clear - 6:00 PM Cottagegrove, IL Hourly Weather - Mostly Clear - 7:00 PM Cottagegrove, IL Hourly Weather - Mostly Clear - 8:00 PM Cottagegrove, IL Hourly Weather - Mostly Cloudy - 9:00 PM Cottagegrove, IL Hourly Weather - Mostly Cloudy - 10:00 PM Cottagegrove, IL Hourly Weather - Mostly Cloudy - 11:00 PM Cottagegrove, IL Hourly Weather - Mostly Cloudy - 12:00 AM Cottagegrove, IL Hourly Weather - Mostly Cloudy - 1:00 AM Cottagegrove, IL Hourly Weather - Mostly Cloudy - 2:00 AM Cottagegrove, IL Hourly Weather - Cloudy - 3:00 AM Cottagegrove, IL Hourly Weather - Cloudy - 4:00 AM Cottagegrove, IL Hourly Weather - Cloudy - 5:00 AM Cottagegrove, IL Hourly Weather - Cloudy - 6:00 AM Cottagegrove, IL Hourly Weather - Cloudy - 7:00 AM Cottagegrove, IL Hourly Weather - Cloudy - 8:00 AM Cottagegrove, IL Hourly Weather - Cloudy - 9:00 AM Cottagegrove, IL Hourly Weather - Cloudy - 10:00 AM Cottagegrove, IL Hourly Weather - Cloudy - 11:00 AM Cottagegrove, IL Hourly Weather - Cloudy - 12:00 PM
Clear Clear Clear Clear Clear Mostly Clear Mostly Clear Mostly Clear Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
96°F36°C 96°F36°C 97°F36°C 97°F36°C 93°F34°C 90°F32°C 86°F30°C 82°F28°C 79°F26°C 75°F24°C 75°F24°C 74°F23°C 74°F23°C 73°F23°C 72°F22°C 71°F22°C 71°F22°C 71°F22°C 71°F22°C 73°F23°C 75°F24°C 77°F25°C 79°F26°C 80°F27°C
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1% 1% 1% 1% 1% 1% 1% 3% 3% 3% 3% 3% 3% 30% 30% 30% 30% 30% 30% 23% 23% 23% 23% 23%
57°F14°C 56°F13°C 54°F12°C 53°F12°C 55°F13°C 57°F14°C 59°F15°C 61°F16°C 63°F17°C 65°F18°C 66°F19°C 66°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 67°F19°C 68°F20°C 68°F20°C 67°F19°C 65°F18°C
27% 26% 24% 23% 28% 33% 40% 49% 58% 71% 74% 76% 79% 82% 84% 87% 87% 87% 87% 82% 79% 74% 67% 60%
SSW SSW SSW SSW SSW W WNW SW SE NE NE NE NE SSE SSW N SSW SE NNE NE NE ENE SSE SSW
6 mph 6 mph 8 mph 8 mph 8 mph 3 mph 3 mph 3 mph 3 mph 3 mph 3 mph 5 mph 5 mph 5 mph 5 mph 5 mph 5 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 mph 4 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 KHSB model statistics.

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Prob Precip % = Probability of Precipitation.

Cottagegrove 36 Hour Forecast

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

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