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Rentchler, IL Weather

Today: Partly Sunny, high 78°F, low 58°F. Hourly and 10-day forecast from the National Weather Service. Times are local (CDT).

Rentchler, IL current weather

78°F

Partly Sunny

Forecast for this hour. No recent report from a nearby station.

H 78° / L 58°

No recent station report. NWS hourly forecast updated 10/30/2026, 12:36 PM PT

Hourly forecast

NWS, updated 10/30/2026, 12:36 PM PT

  1. Now78°
  2. 4 PM77°
  3. 5 PM77°
  4. 6 PM72°
  5. 7 PM69°
  6. 8 PM66°
  7. 9 PM65°
  8. 10 PM64°
  9. 11 PM63°
  10. 12 AM62°Sat
  11. 1 AM62°
  12. 2 AM61°
  13. 3 AM61°
  14. 4 AM60°
  15. 5 AM60°
  16. 6 AM59°
  17. 7 AM59°
  18. 8 AM58°
  19. 9 AM61°
  20. 10 AM64°
  21. 11 AM68°
  22. 12 PM70°10%
  23. 1 PM71°10%
  24. 2 PM72°11%
  25. 3 PM72°11%
  26. 4 PM72°10%
  27. 5 PM73°
  28. 6 PM71°
  29. 7 PM68°
  30. 8 PM66°
  31. 9 PM65°
  32. 10 PM63°
  33. 11 PM63°
  34. 12 AM61°13%Sun
  35. 1 AM61°17%
  36. 1 AM60°24%
  37. 2 AM59°27%
  38. 3 AM59°36%
  39. 4 AM59°45%
  40. 5 AM59°55%
  41. 6 AM59°71%
  42. 7 AM59°71%
  43. 8 AM61°71%
  44. 9 AM63°71%
  45. 10 AM65°71%
  46. 11 AM65°71%
  47. 12 PM66°27%
  48. 1 PM66°27%

10-day forecast

Tap a day for details

  • Today10/30Low 58°High 78°

    This Afternoon: Partly sunny, with a high near 78. East wind around 6 mph.

    Tonight: Mostly cloudy, with a low around 58. East wind around 6 mph.

    Partly Sunny
  • Sat10/3155% chance of precipitationLow 59°High 73°

    Saturday: A chance of rain showers between noon and 5pm. Cloudy, with a high near 73. East wind 3 to 7 mph.

    Saturday Night: Rain showers likely after midnight. Mostly cloudy, with a low around 59. East wind around 6 mph. Chance of precipitation is 60%.

    Cloudy then Chance Rain Showers
  • Sun11/171% chance of precipitationLow 55°High 66°

    Sunday: Rain showers likely. Cloudy, with a high near 66. Southeast wind 5 to 8 mph. Chance of precipitation is 70%.

    Sunday Night: Cloudy, with a low around 55.

    Rain Showers Likely
  • Mon11/235% chance of precipitationLow 61°High 69°

    Monday: A chance of rain showers. Mostly cloudy, with a high near 69. Chance of precipitation is 30%.

    Monday Night: A chance of rain showers. Mostly cloudy, with a low around 61. Chance of precipitation is 40%.

    Chance Rain Showers
  • Tue11/376% chance of precipitationLow 56°High 72°

    Tuesday: Rain showers. Mostly cloudy, with a high near 72. Chance of precipitation is 80%.

    Tuesday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 56. Chance of precipitation is 60%.

    Rain Showers
  • Wed11/443% chance of precipitationLow 51°High 68°

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

    Wednesday Night: A slight chance of rain showers before midnight. Mostly cloudy, with a low around 51. Chance of precipitation is 20%.

    Chance Rain Showers
  • Thu11/518% chance of precipitationLow 47°High 66°

    Thursday: A slight chance of rain showers. Partly sunny, with a high near 66. Chance of precipitation is 20%.

    Thursday Night: Partly cloudy, with a low around 47.

    Slight Chance Rain Showers
  • Fri11/6Model blendLow 42°High 65°

    Friday: Partly cloudy. High near 65°. Low that night near 42°.

    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 41°High 65°

    Saturday: Partly cloudy. High near 65°. Low that night near 41°.

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

  • Sun11/8Model blend17% chance of precipitationLow 42°High 65°

    Sunday: Mostly cloudy. High near 65°. Low that night near 42°. About 0.21 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 38.494, -89.869 from the NWS LSX office, updated 10/30/2026, 12:36 PM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KBLV (Belleville/Scott AFB, 3 mi), model run 10/30/2026, 9:00 AM 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. Now78°Partly Sunny3%6 mph
  2. 4 PM77°Partly Sunny2%6 mph
  3. 5 PM77°Partly Sunny1%6 mph
  4. 6 PM72°Mostly Cloudy1%5 mph
  5. 7 PM69°Mostly Cloudy1%5 mph
  6. 8 PM66°Mostly Cloudy1%3 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 high temperature today in Rentchler, IL?
The National Weather Service forecast for this afternoon calls for a high near 78°F. Partly Sunny.
Will it rain in Rentchler, 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 Rentchler, IL?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 6 to Nov 8) come from the NOAA National Blend of Models, with highs near 65°F. Model guidance this far out often changes.
What time is sunrise and sunset in Rentchler, IL today?
Sunrise is about 7:24 AM CDT and sunset is about 6:01 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Rentchler, IL?
At Belleville Siu Rsch, the 1991 to 2020 normal high in October is 73°F and the normal low is 47°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 today (St. Louis (Metro-east))
GoodPM2.5
AQI forecast tomorrow (St. Louis (Metro-east))
ModeratePM2.5

UV index guide · Air quality

Drought

By county

St. Clair 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
7:24 AM
Sunset
6:01 PM
Daylight
10 hr 38 min
Moon
Waning Gibbous 77% lit
First light (civil dawn)
6:56 AM
Last light (civil dusk)
6:29 PM
Moonrise
9:46 PM
Moonset
12:34 PM

Normal October weather

Climate

Normal October high 73°, low 47°, precipitation 3.12 in for the month. 1991 to 2020 normals at Belleville Siu Rsch, 2 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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