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Gilson, IL Weather

It is 75°F and clear in Gilson, IL, observed at 4:35 PM CDT. Today: Sunny, high 77°F, low 57°F. Hourly and 10-day forecast from the National Weather Service. Times are local (CDT).

Gilson, IL current weather

75°F

Clear

H 77° / L 57°Feels like 74°

  • No rain expected in the next 12 hours

Observed at Galesburg Municipal Airport (13.1 mi away), 10/28/2026, 4:35 PM CDT

Hourly forecast

NWS, updated 10/28/2026, 11:26 AM PT

  1. Now76°
  2. 6 PM73°
  3. 7 PM70°
  4. 8 PM65°
  5. 9 PM64°
  6. 10 PM64°
  7. 11 PM63°
  8. 12 AM62°Thu
  9. 1 AM62°
  10. 2 AM61°
  11. 3 AM61°
  12. 4 AM59°
  13. 5 AM59°
  14. 6 AM58°
  15. 7 AM57°11%
  16. 8 AM58°11%
  17. 9 AM60°10%
  18. 10 AM65°
  19. 11 AM68°
  20. 12 PM70°
  21. 1 PM71°
  22. 2 PM71°
  23. 3 PM71°
  24. 4 PM72°
  25. 5 PM71°
  26. 6 PM68°
  27. 7 PM63°
  28. 8 PM57°
  29. 9 PM55°
  30. 10 PM53°
  31. 11 PM52°
  32. 12 AM50°Fri
  33. 1 AM49°
  34. 2 AM48°
  35. 3 AM47°
  36. 4 AM46°
  37. 5 AM46°
  38. 6 AM46°
  39. 7 AM46°21%
  40. 8 AM45°21%
  41. 9 AM50°21%
  42. 10 AM56°21%
  43. 11 AM60°21%
  44. 12 PM63°21%
  45. 1 PM66°62%
  46. 2 PM68°62%
  47. 3 PM68°62%
  48. 4 PM68°62%

10-day forecast

Tap a day for details

  • Today10/28Low 57°High 77°

    This Afternoon: Sunny, with a high near 77. South wind around 10 mph, with gusts as high as 22 mph.

    Tonight: Mostly clear, with a low around 57. South southwest wind 7 to 12 mph, with gusts as high as 20 mph.

    Sunny
  • Thu10/2911% chance of precipitationLow 45°High 73°

    Thursday: Scattered rain showers between 7am and 10am. Mostly sunny, with a high near 73. West northwest wind around 8 mph.

    Thursday Night: Mostly clear, with a low around 45. North northeast wind around 6 mph.

    Scattered Rain Showers then Mostly Sunny
  • Fri10/3062% chance of precipitationLow 52°High 69°

    Friday: Rain showers likely between 7am and 4pm, then showers and thunderstorms likely. Partly sunny, with a high near 69. East wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

    Friday Night: Showers and thunderstorms likely. Cloudy, with a low around 52. East wind around 6 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

    Rain Showers Likely
  • Sat10/3160% chance of precipitationLow 52°High 70°

    Saturday: Rain showers likely before 1pm. Mostly cloudy, with a high near 70. Southeast wind around 5 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.

    Saturday Night: A slight chance of rain showers after 7pm. Mostly cloudy, with a low around 52.

    Rain Showers Likely
  • Sun11/136% chance of precipitationLow 53°High 69°

    Sunday: A chance of rain showers. Mostly cloudy, with a high near 69. Chance of precipitation is 40%.

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

    Chance Rain Showers
  • Mon11/249% chance of precipitationLow 56°High 70°

    Monday: A chance of rain showers. Mostly cloudy, with a high near 70.

    Monday Night: A chance of rain showers. Mostly cloudy, with a low around 56.

    Chance Rain Showers
  • Tue11/367% chance of precipitationLow 53°High 70°

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

    Tuesday Night: Rain showers likely. Mostly cloudy, with a low around 53.

    Rain Showers Likely
  • Wed11/4Model blend54% chance of precipitationLow 46°High 67°

    Wednesday: Chance of rain. High near 67°. Low that night near 46°. About 0.30 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.

  • Thu11/5Model blend38% chance of precipitationLow 41°High 61°

    Thursday: Chance of rain. High near 61°. Low that night near 41°. About 0.03 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.

  • Fri11/6Model blend20% chance of precipitationLow 38°High 59°

    Friday: Partly cloudy, slight chance of rain. High near 59°. Low that night near 38°. About 0.03 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 40.863, -90.199 from the NWS ILX office, updated 10/28/2026, 11:26 AM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KGBG (Galesburg Muni, 13 mi), model run 10/28/2026, 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. Now76°Sunny0%10 mph
  2. 6 PM73°Mostly Clear0%8 mph
  3. 7 PM70°Mostly Clear0%9 mph
  4. 8 PM65°Mostly Clear0%10 mph
  5. 9 PM64°Mostly Clear1%12 mph
  6. 10 PM64°Mostly Clear1%12 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 (last 50 min) and GOES

Latest

Frequently asked questions

What is the weather in Gilson, IL right now?
The latest observation from Galesburg Municipal Airport was 75°F and clear, reported at 10/28/2026, 4:35 PM CDT.
What is the high temperature today in Gilson, IL?
The National Weather Service forecast for this afternoon calls for a high near 77°F. Sunny.
Will it rain in Gilson, 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 Gilson, IL?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 4 to Nov 6) come from the NOAA National Blend of Models, with highs of 59°F to 67°F and up to a 54% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Gilson, IL today?
Sunrise is about 7:27 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 Gilson, IL?
At Knoxville, the 1991 to 2020 normal high in October is 64°F and the normal low is 42°F.

Rain and snow totals

Next 3 days, NWS forecast grid

Rain (liquid)
0.09 in
Snow
0.00 in
Ice
0.00 in

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

Drought

By county

Knox County, week of 10/20/2026

No drought or abnormal dryness in this county.

Sun and moon

Local time, center of the area

Sunrise
7:27 AM
Sunset
6:01 PM
Daylight
10 hr 35 min
Moon
Waning Gibbous 91% lit
First light (civil dawn)
6:58 AM
Last light (civil dusk)
6:30 PM
Moonrise
7:26 PM
Moonset
10:33 AM

Normal October weather

Climate

Normal October high 64°, low 42°, precipitation 3.03 in for the month. 1991 to 2020 normals at Knoxville, 5 mi away.

Other places nearby

Data sources

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About this data

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