Weather Alert
Decatur Weather Warning NWS WEATHER ALERT FOR THE DECATUR, IL AREA - Issued: 456 AM CDT Tue Oct 13 2026 Decatur Weather Warning

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Decatur, IL Weather - Hour by Hour Forecast

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Decatur, IL Weather - Hour by Hour Forecast

24 Hour Forecast

Current Conditions - Clear. Temperature is 86°F30°C, dew point 64°F18°C, humidity 48%. Wind direction is WSW at 10 mph16 km/h with visibility of 9 mi14 km. Barometric pressure is 29.91 in1013 mb.
Rest of Today - Sunny. Highs in the lower 90s. Southwest winds 10 to 15 mph... Full Forecast
Tonight - Mostly clear in the evening, then mostly cloudy with a chance of showers and thunderstorms after midnight. Lows in the upper 60s. .. Full Forecast

Decatur Hourly Weather

24 Hour Forecast Scroll
Tue, Oct 13
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Decatur, IL Hourly Weather - Mostly Clear - 1:00 PM Decatur, IL Hourly Weather - Mostly Clear - 2:00 PM Decatur, IL Hourly Weather - Mostly Clear - 3:00 PM Decatur, IL Hourly Weather - Mostly Clear - 4:00 PM Decatur, IL Hourly Weather - Mostly Clear - 5:00 PM Decatur, IL Hourly Weather - Partly Cloudy - 6:00 PM Decatur, IL Hourly Weather - Partly Cloudy - 7:00 PM Decatur, IL Hourly Weather - Partly Cloudy - 8:00 PM Decatur, IL Hourly Weather - Mostly Cloudy - 9:00 PM Decatur, IL Hourly Weather - Mostly Cloudy - 10:00 PM Decatur, IL Hourly Weather - Mostly Cloudy - 11:00 PM Decatur, IL Hourly Weather - Cloudy - 12:00 AM Decatur, IL Hourly Weather - Cloudy - 1:00 AM Decatur, IL Hourly Weather - Cloudy - 2:00 AM Decatur, IL Hourly Weather - Cloudy - 3:00 AM Decatur, IL Hourly Weather - Cloudy - 4:00 AM Decatur, IL Hourly Weather - Cloudy - 5:00 AM Decatur, IL Hourly Weather - Cloudy - 6:00 AM Decatur, IL Hourly Weather - Cloudy - 7:00 AM Decatur, IL Hourly Weather - Cloudy - 8:00 AM Decatur, IL Hourly Weather - Cloudy - 9:00 AM Decatur, IL Hourly Weather - Cloudy - 10:00 AM Decatur, IL Hourly Weather - Cloudy - 11:00 AM Decatur, IL Hourly Weather - Cloudy - 12:00 PM
Mostly Clear Mostly Clear Mostly Clear Mostly Clear Mostly Clear Partly Cloudy Partly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Mostly Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy Cloudy
88°F31°C 89°F32°C 89°F32°C 90°F32°C 87°F31°C 85°F29°C 82°F28°C 79°F26°C 77°F25°C 74°F23°C 73°F23°C 71°F22°C 70°F21°C 69°F21°C 68°F20°C 67°F19°C 67°F19°C 66°F19°C 66°F19°C 67°F19°C 68°F20°C 69°F21°C 70°F21°C 71°F22°C
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15% 15% 15% 15% 15% 15% 15% 58% 58% 58% 58% 58% 58% 75% 75% 75% 75% 75% 75% 58% 58% 58% 58% 58%
66°F19°C 66°F19°C 65°F18°C 65°F18°C 65°F18°C 65°F18°C 65°F18°C 65°F18°C 65°F18°C 65°F18°C 65°F18°C 64°F18°C 64°F18°C 64°F18°C 63°F17°C 63°F17°C 63°F17°C 63°F17°C 63°F17°C 63°F17°C 64°F18°C 64°F18°C 64°F18°C 63°F17°C
48% 47% 45% 44% 48% 51% 57% 62% 67% 74% 76% 79% 81% 84% 84% 87% 87% 90% 90% 87% 87% 84% 81% 76%
SSW SSW SSW SSW SSW SSW W SW S SE S SW SSW W NW NW NNW N N SSW SSE NE NE ENE
10 mph 10 mph 10 mph 10 mph 10 mph 5 mph 5 mph 5 mph 4 mph 4 mph 4 mph 5 mph 5 mph 5 mph 5 mph 5 mph 5 mph 5 mph 5 mph 5 mph 5 mph 5 mph 5 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 6 mi10 km 6 mi10 km 6 mi10 km 5 mi8 km
Hour (CDT)
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POP = Probability of Precipitation. ** Indicates missing data/values from KDEC model statistics.

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Prob Precip % = Probability of Precipitation.

Decatur 36 Hour Forecast

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

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