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Decatur, IL 62523 Weather

It is 73°F and mostly cloudy in Decatur, IL 62523, observed at 5:45 PM CDT. Tonight: Partly Cloudy, low 49°F. Hourly and 10-day forecast from the National Weather Service. Times are local (CDT).

Decatur, IL 62523 current weather

73°F

Mostly Cloudy

H -- / L 49°Feels like 73°

Observed at Decatur Airport (4.4 mi away), 10/29/2026, 5:45 PM CDT

Hourly forecast

NWS, updated 10/29/2026, 2:26 PM PT

  1. Now73°10%
  2. 7 PM67°
  3. 8 PM64°
  4. 9 PM61°
  5. 10 PM59°
  6. 11 PM58°
  7. 12 AM56°Fri
  8. 1 AM55°
  9. 2 AM53°
  10. 3 AM52°
  11. 4 AM51°
  12. 5 AM50°
  13. 6 AM49°
  14. 7 AM49°
  15. 8 AM51°
  16. 9 AM55°
  17. 10 AM59°
  18. 11 AM61°
  19. 12 PM64°
  20. 1 PM66°11%
  21. 2 PM67°13%
  22. 3 PM67°13%
  23. 4 PM69°13%
  24. 5 PM67°13%
  25. 6 PM65°13%
  26. 7 PM63°
  27. 8 PM61°
  28. 9 PM60°
  29. 10 PM59°
  30. 11 PM58°
  31. 12 AM57°Sat
  32. 1 AM56°
  33. 2 AM56°
  34. 3 AM55°13%
  35. 4 AM55°17%
  36. 5 AM54°22%
  37. 6 AM54°26%
  38. 7 AM53°34%
  39. 8 AM53°34%
  40. 9 AM56°34%
  41. 10 AM59°34%
  42. 11 AM62°34%
  43. 12 PM64°34%
  44. 1 PM66°
  45. 2 PM67°
  46. 3 PM68°
  47. 4 PM68°
  48. 5 PM67°

10-day forecast

Tap a day for details

  • Today10/2910% chance of precipitationLow 49°High

    Tonight: Partly cloudy, with a low around 49. North northeast wind around 8 mph.

    Partly Cloudy
  • Fri10/3022% chance of precipitationLow 53°High 70°

    Friday: Partly sunny, with a high near 70. East wind around 10 mph, with gusts as high as 16 mph.

    Friday Night: A slight chance of rain showers after 4am. Mostly cloudy, with a low around 53. East wind around 9 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

    Partly Sunny
  • Sat10/3134% chance of precipitationLow 53°High 69°

    Saturday: A chance of rain showers before 1pm. Cloudy, with a high near 69. East southeast wind around 8 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

    Saturday Night: A chance of rain showers after 1am. Cloudy, with a low around 53. East wind around 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

    Chance Rain Showers
  • Sun11/149% chance of precipitationLow 53°High 69°

    Sunday: A chance of rain showers. Mostly cloudy, with a high near 69. East southeast wind 5 to 9 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

    Sunday Night: Mostly cloudy, with a low around 53. Southeast wind 6 to 9 mph.

    Chance Rain Showers
  • Mon11/248% chance of precipitationLow 59°High 68°

    Monday: A chance of rain showers. Mostly cloudy, with a high near 68. Chance of precipitation is 40%.

    Monday Night: A chance of rain showers. Mostly cloudy, with a low around 59. Chance of precipitation is 50%.

    Chance Rain Showers
  • Tue11/362% chance of precipitationLow 57°High 74°

    Tuesday: Showers and thunderstorms likely. Partly sunny, with a high near 74.

    Tuesday Night: Rain showers likely. Mostly cloudy, with a low around 57.

    Showers And Thunderstorms Likely
  • Wed11/464% chance of precipitationLow 49°High 70°

    Wednesday: Rain showers likely. Mostly cloudy, with a high near 70.

    Wednesday Night: A chance of rain showers. Mostly cloudy, with a low around 49.

    Rain Showers Likely
  • Thu11/526% chance of precipitationLow High 63°

    Thursday: A chance of rain showers. Partly sunny, with a high near 63.

    Chance Rain Showers
  • Fri11/6Model blend23% chance of precipitationLow 40°High 63°

    Friday: Partly cloudy, slight chance of rain. High near 63°. Low that night near 40°.

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

  • Sat11/7Model blendLow 38°High 63°

    Saturday: Partly cloudy. High near 63°. Low that night near 38°.

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

Forecast for 39.845, -88.952 from the NWS ILX office, updated 10/29/2026, 2:26 PM PT · Official forecast on weather.gov

Days 9 to 10: NOAA National Blend of Models, station KDEC (Decatur Arpt, 4 mi), model run 10/29/2026, 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. Now73°Mostly Cloudy10%7 mph
  2. 7 PM67°Mostly Cloudy5%7 mph
  3. 8 PM64°Mostly Cloudy3%7 mph
  4. 9 PM61°Mostly Cloudy1%7 mph
  5. 10 PM59°Partly Cloudy1%7 mph
  6. 11 PM58°Partly Cloudy1%7 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 Decatur, IL 62523 right now?
The latest observation from Decatur Airport was 73°F and mostly cloudy, reported at 10/29/2026, 5:45 PM CDT.
Will it rain in Decatur, IL 62523 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 Decatur, IL 62523?
The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 6 to Nov 7) 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 Decatur, IL 62523 today?
Sunrise is about 7:21 AM CDT and sunset is about 5:57 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Decatur, IL 62523?
At Decatur Wtp, the 1991 to 2020 normal high in October is 65°F and the normal low is 46°F.

Nearby hazards

Illinois hazards

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

  • Severe storm outlook today:General thunderstormsOutlook 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 today (Decatur)
ModeratePM2.5
AQI forecast tomorrow (Decatur)
GoodPM2.5

UV index guide · Air quality

Drought

By county

Macon 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
7:21 AM
Sunset
5:57 PM
Daylight
10 hr 36 min
Moon
Waning Gibbous 84% lit
First light (civil dawn)
6:53 AM
Last light (civil dusk)
6:25 PM
Moonrise
8:26 PM
Moonset
11:34 AM

Normal October weather

Climate

Normal October high 65°, low 46°, precipitation 3.41 in for the month. 1991 to 2020 normals at Decatur Wtp, 1 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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