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Harmon, IL 61042 Weather

Tonight: Mostly Clear, low 41°F. Hourly and 7-day forecast from the National Weather Service. Times are local (CDT).

Harmon, IL 61042 current weather

55°F

Clear

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

H -- / L 41°

  • No rain expected in the next 12 hours

No recent station report. NWS hourly forecast updated 10/29/2026, 6:36 PM PT

Hourly forecast

NWS, updated 10/29/2026, 6:36 PM PT

  1. Now55°
  2. 9 PM52°
  3. 10 PM49°
  4. 11 PM47°
  5. 12 AM46°Fri
  6. 1 AM45°
  7. 2 AM44°
  8. 3 AM43°
  9. 4 AM43°
  10. 5 AM42°
  11. 6 AM42°
  12. 7 AM42°
  13. 8 AM42°
  14. 9 AM46°
  15. 10 AM51°14%
  16. 11 AM54°14%
  17. 12 PM56°14%
  18. 1 PM58°33%
  19. 2 PM59°33%
  20. 3 PM60°33%
  21. 4 PM59°33%
  22. 5 PM59°33%
  23. 6 PM58°33%
  24. 7 PM55°32%
  25. 8 PM53°32%
  26. 9 PM52°32%
  27. 10 PM51°32%
  28. 11 PM50°32%
  29. 12 AM50°32%Sat
  30. 1 AM50°71%
  31. 2 AM50°71%
  32. 3 AM49°71%
  33. 4 AM49°71%
  34. 5 AM49°71%
  35. 6 AM49°71%
  36. 7 AM48°80%
  37. 8 AM48°80%
  38. 9 AM50°80%
  39. 10 AM54°80%
  40. 11 AM56°80%
  41. 12 PM58°80%
  42. 1 PM59°29%
  43. 2 PM60°29%
  44. 3 PM61°29%
  45. 4 PM61°29%
  46. 5 PM60°29%
  47. 6 PM59°29%
  48. 7 PM57°16%

7-day forecast

Tap a day for details

  • Today10/29Low 41°High

    Tonight: Mostly clear, with a low around 41. North northeast wind 0 to 5 mph, with gusts as high as 10 mph.

    Mostly Clear
  • Fri10/3071% chance of precipitationLow 48°High 60°

    Friday: A chance of rain showers after 1pm. Partly sunny, with a high near 60. East wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.

    Friday Night: A chance of rain showers before 1am, then showers and thunderstorms likely. Cloudy, with a low around 48. East wind 5 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.

    Partly Sunny then Chance Rain Showers
  • Sat10/3180% chance of precipitationLow 48°High 61°

    Saturday: Showers and thunderstorms. Cloudy, with a high near 61. Southeast wind 5 to 10 mph. Chance of precipitation is 80%.

    Saturday Night: A chance of rain showers before 10pm. Mostly cloudy, with a low around 48. East southeast wind 0 to 5 mph. Chance of precipitation is 30%.

    Showers And Thunderstorms
  • Sun11/120% chance of precipitationLow 53°High 67°

    Sunday: A slight chance of rain showers. Partly sunny, with a high near 67. Chance of precipitation is 20%.

    Sunday Night: Mostly cloudy, with a low around 53.

    Slight Chance Rain Showers
  • Mon11/270% chance of precipitationLow 57°High 67°

    Monday: A chance of rain showers. Mostly cloudy, with a high near 67.

    Monday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 57.

    Chance Rain Showers
  • Tue11/373% chance of precipitationLow 55°High 71°

    Tuesday: Rain showers likely. Mostly cloudy, with a high near 71.

    Tuesday Night: Rain showers likely. Mostly cloudy, with a low around 55.

    Rain Showers Likely
  • Wed11/462% chance of precipitationLow 48°High 67°

    Wednesday: Rain showers likely. Mostly cloudy, with a high near 67.

    Wednesday Night: A chance of rain showers. Mostly cloudy, with a low around 48.

    Rain Showers Likely
  • Thu11/541% chance of precipitationLow High 61°

    Thursday: A chance of rain showers. Partly sunny, with a high near 61.

    Chance Rain Showers

Forecast for 41.693, -89.565 from the NWS LOT office, updated 10/29/2026, 6:36 PM PT · Official forecast on weather.gov

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. Now55°Clear0%5 mph
  2. 9 PM52°Clear0%0 mph
  3. 10 PM49°Clear0%0 mph
  4. 11 PM47°Clear0%0 mph
  5. 12 AM46°Clear0%0 mph
  6. 1 AM45°Clear0%0 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

Will it rain in Harmon, IL 61042 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 time is sunrise and sunset in Harmon, IL 61042 today?
Sunrise is about 7:27 AM CDT and sunset is about 5:56 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Harmon, IL 61042?
At Walnut, the 1991 to 2020 normal high in October is 63°F and the normal low is 41°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 (Rock Island-Moline)
GoodPM2.5
AQI forecast tomorrow (Rock Island-Moline)
GoodPM2.5

UV index guide · Air quality

Drought

By county

Lee County, week of 10/27/2026

No drought or abnormal dryness in this county.

Sun and moon

Local time, center of the area

Sunrise
7:27 AM
Sunset
5:56 PM
Daylight
10 hr 30 min
Moon
Waning Gibbous 84% lit
First light (civil dawn)
6:58 AM
Last light (civil dusk)
6:25 PM
Moonrise
8:20 PM
Moonset
11:45 AM

Normal October weather

Climate

Normal October high 63°, low 41°, precipitation 2.97 in for the month. 1991 to 2020 normals at Walnut, 9 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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