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Clinton, IL Weather

It is 55°F and cloudy in Clinton, IL, observed at 9 PM CDT. Tonight: Isolated Rain Showers then Mostly Cloudy, low 52°F. Hourly and 10-day forecast from the National Weather Service. Times are local (CDT).

Clinton, IL current weather

55°F

Cloudy

H -- / L 52°Feels like 55°

  • No rain expected in the next 12 hours

Observed at Decatur Airport (22.5 mi away), 10/30/2026, 9:00 PM CDT

Hourly forecast

NWS, updated 10/30/2026, 7:36 PM PT

  1. Now59°24%
  2. 10 PM59°17%
  3. 11 PM58°11%
  4. 12 AM58°Sat
  5. 1 AM57°
  6. 2 AM54°
  7. 3 AM53°
  8. 4 AM53°
  9. 5 AM53°
  10. 6 AM52°
  11. 7 AM53°14%
  12. 8 AM53°17%
  13. 9 AM56°19%
  14. 10 AM61°17%
  15. 11 AM65°16%
  16. 12 PM66°14%
  17. 1 PM67°13%
  18. 2 PM68°13%
  19. 3 PM69°13%
  20. 4 PM69°14%
  21. 5 PM70°16%
  22. 6 PM68°11%
  23. 7 PM65°10%
  24. 8 PM63°
  25. 9 PM60°
  26. 10 PM59°
  27. 11 PM59°10%
  28. 12 AM58°12%Sun
  29. 1 AM58°14%
  30. 1 AM58°13%
  31. 2 AM57°11%
  32. 3 AM57°
  33. 4 AM57°
  34. 5 AM57°19%
  35. 6 AM56°36%
  36. 7 AM55°36%
  37. 8 AM59°36%
  38. 9 AM63°36%
  39. 10 AM65°36%
  40. 11 AM65°36%
  41. 12 PM65°33%
  42. 1 PM66°33%
  43. 2 PM66°33%
  44. 3 PM66°33%
  45. 4 PM65°33%
  46. 5 PM63°33%
  47. 6 PM61°15%
  48. 7 PM60°15%

10-day forecast

Tap a day for details

  • Today10/3024% chance of precipitationLow 52°High

    Tonight: Isolated rain showers before 11pm. Mostly cloudy, with a low around 52. East wind around 10 mph, with gusts as high as 17 mph. Chance of precipitation is 20%.

    Isolated Rain Showers then Mostly Cloudy
  • Sat10/3119% chance of precipitationLow 55°High 70°

    Saturday: A slight chance of rain showers after 8am. Mostly cloudy, with a high near 70. East southeast wind 8 to 12 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

    Saturday Night: A slight chance of rain showers after 5am. Cloudy, with a low around 55. East southeast wind 6 to 9 mph. Chance of precipitation is 20%.

    Slight Chance Rain Showers
  • Sun11/136% chance of precipitationLow 51°High 67°

    Sunday: A chance of rain showers. Mostly cloudy, with a high near 67. Southeast wind 8 to 13 mph, with gusts as high as 17 mph. Chance of precipitation is 40%.

    Sunday Night: A slight chance of rain showers. Cloudy, with a low around 51. Southeast wind 9 to 13 mph.

    Chance Rain Showers
  • Mon11/248% chance of precipitationLow 58°High 68°

    Monday: A chance of rain showers. Mostly cloudy, with a high near 68. South southeast wind 12 to 21 mph, with gusts as high as 24 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

    Monday Night: A chance of rain showers. Cloudy, with a low around 58. South southeast wind around 23 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.

    Chance Rain Showers
  • Tue11/371% chance of precipitationLow 55°High 72°

    Tuesday: Rain showers likely. Mostly cloudy, with a high near 72. Chance of precipitation is 70%.

    Tuesday Night: Rain showers likely. Mostly cloudy, with a low around 55. Chance of precipitation is 60%.

    Rain Showers Likely
  • Wed11/461% chance of precipitationLow 50°High 68°

    Wednesday: Rain showers likely. Partly sunny, with a high near 68.

    Wednesday Night: A chance of rain showers. Mostly cloudy, with a low around 50.

    Rain Showers Likely
  • Thu11/535% chance of precipitationLow 45°High 65°

    Thursday: A chance of rain showers. Mostly cloudy, with a high near 65.

    Thursday Night: Mostly cloudy, with a low around 45.

    Chance Rain Showers
  • Fri11/614% chance of precipitationLow High 62°

    Friday: Mostly sunny, with a high near 62.

    Mostly Sunny
  • Sat11/7Model blendLow 39°High 63°

    Saturday: Partly cloudy. High near 63°. Low that night near 39°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sun11/8Model blend13% chance of precipitationLow 39°High 63°

    Sunday: Partly cloudy. High near 63°. Low that night near 39°. About 0.02 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 40.149, -88.961 from the NWS ILX office, updated 10/30/2026, 7:36 PM PT · Official forecast on weather.gov

Days 9 to 10: NOAA National Blend of Models, station KDEC (Decatur Arpt, 22 mi), model run 10/30/2026, 3:00 PM CDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now59°Isolated Rain Showers24%10 mph
  2. 10 PM59°Isolated Rain Showers17%10 mph
  3. 11 PM58°Mostly Cloudy11%10 mph
  4. 12 AM58°Mostly Cloudy7%9 mph
  5. 1 AM57°Cloudy7%10 mph
  6. 2 AM54°Mostly Cloudy8%10 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Clinton, IL right now?
The latest observation from Decatur Airport was 55°F and cloudy, reported at 10/30/2026, 9:00 PM CDT.
Will it rain in Clinton, IL in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Clinton, IL?
The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 7 to Nov 8) come from the NOAA National Blend of Models, with highs near 63°F. Model guidance this far out often changes.
What time is sunrise and sunset in Clinton, IL today?
Sunrise is about 7:23 AM CDT and sunset is about 5:55 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Clinton, IL?
At Lincoln, the 1991 to 2020 normal high in October is 66°F and the normal low is 42°F.

Nearby hazards

Illinois hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast tomorrow (Decatur)
ModeratePM2.5
AQI forecast tomorrow (Decatur)
ModeratePM2.5

UV index guide · Air quality

Drought

By county

De Witt County, week of 10/27/2026

100% of the county is abnormally dry. No drought.

Sun and moon

Local time, center of the area

Sunrise
7:23 AM
Sunset
5:55 PM
Daylight
10 hr 32 min
Moon
Waning Gibbous 75% lit
First light (civil dawn)
6:55 AM
Last light (civil dusk)
6:23 PM
Moonrise
9:36 PM
Moonset
12:37 PM

Normal October weather

Climate

Normal October high 66°, low 42°, precipitation 3.42 in for the month. 1991 to 2020 normals at Lincoln, 20 mi away.

Other places nearby

Data sources

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About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

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