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Knoxville, IL Weather
Current conditions
Observed at Galesburg Municipal Airport · 50 min ago
Forecast
10-day-
Today
Mostly sunny, with a high near 74. South southeast wind around 9 mph.
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Tonight
Mostly clear, with a low around 50. South southeast wind 2 to 6 mph.
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Sunday
Mostly sunny, with a high near 76. South southeast wind around 5 mph.
National Weather Service forecast updated 3 hrs ago.
Hourly
Hourly forecast- Now74°
- 4 PM74°
- 5 PM72°
- 6 PM68°
- 7 PM63°
- 8 PM61°
- 9 PM59°
- 10 PM57°
- 11 PM56°
- Sun12 AM55°
- 1 AM54°
- 2 AM53°
- 3 AM52°
- 4 AM52°
- 5 AM51°
- 6 AM50°
- 7 AM50°
- 8 AM51°
- 9 AM56°
- 10 AM62°
- 11 AM66°
- 12 PM70°
- 1 PM73°
- 2 PM74°
10-day forecast
Details- TodayOct 24Mostly Sunny50°74°
- SunOct 25Mostly Sunny51°76°
- MonOct 26Partly Sunny49°75°
- TueOct 27Mostly Cloudy52°72°
- WedOct 28Mostly Sunny13%51°74°
- ThuOct 29Mostly Sunny14%49°71°
- FriOct 30Chance Rain Showers26%50°70°
- SatOct 31Cloudy0.02 in55°69°
- SunNov 1Heavy rain0.74 in61°71°
- MonNov 2Heavy rain1.20 in63°67°
Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.
Radar
Full mapWeather news in Illinois
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Thursday, Oct 22, 2026 - Posted by Isabel Miller DOMi & JD BECK, Herbie Hancock… - Barton - Thursday, Oct 22, 26 @ 8:53 am: Oh yeah, and you have to monitor comments between it all. Thank you for the lessons…
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Strong El Niño likely means a milder winter for northern Illinois, climatologist saysAfter a record tornado year, northern Illinois may get a break: forecasters favor a warmer-than-average winter as El Niño strengthens in the Pacific. El Niño refers to a warming of the Pacific Ocean’s surface that…
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Gorgeous weather continues for Central IllinoisWEDNESDAY: Warming up with sunny skies and calm conditions. High: 75 Low: 47 THURSDAY: Above average with sunny skies. High: 76 Low: 47 FRIDAY: Nice weather continues with sunny skies. High: 76 Low: 46 SATURDAY: Some…
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Sunshine, chilly mornings and a big warm-up ahead for central IllinoisCENTRAL ILLINOIS (25News Now) - Fall is making an appearance across central Illinois this weekend, but don’t get too comfortable with the chilly temperatures. After a cold start on Sunday morning, sunshine will help…
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Overnight Frost Advisory for parts of Illinois, NW IndianaCBS News Colorado 10pm Saturday CBS News Detroit Weekend 11pm CBS News Los Angeles Weekend 9pm CBS News Philadelphia Weekend 11pm KDKA News Weekend 11pm CBS News Texas Weekend 10pm
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Air quality
Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.
Forecast
- SatModerate
- SunModerate
- MonModerate
Rock Island-Moline, IL reporting area · 2 hrs ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyKnoxville, records since 1897. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
Forecasters' discussion
From the National Weather Service office in ILX, issued 2 hrs ago
Key Messages
- Sunny, mild days and cool nights persist across central and southeast Illinois through the next week, with highs in the 70s and lows in the upper 40s to low 50s.
- Tranquil weather will continue for several more days, with the only meaningful chance of rain toward next weekend.
Discussion
Issued at 150 AM CDT Sat Oct 24 2026
The blocking pattern continues over the eastern half of the United States. A low pressure system is moving well off to the north of central IL, up in Canada, this weekend. The only change this has on our forecast is some increased high cloud cover at times. The main focus of this forecast continues to be the above normal temperatures and lack of rain.
Temperatures will continue to be above normal as we move into the next week. Highs will be in the low to upper 70s. Normals for this time of year is around 62-66 degrees across central and southeastern IL. The CPC's 6-10 day, 8-14 day, and Week 3-4 outlooks all show above normal temperatures. Dry weather will last through much of the extended period as well.
A weak shortwave passage on Wednesday morning may bring some light sprinkles to central IL but is looking more likely to pass without any activity due to how dry our airmass is. The next best chance for any rain has been pushed off into next weekend, just in time for Halloween. A stronger shortwave appears to pulse through late Friday into Saturday, bringing a 30-50% chance for showers. Amounts are forecast to be pretty minimal, but we are a week out still, so there is time for this forecast to change.
Aviation
Issued at 1219 PM CDT Sat Oct 24 2026
VFR conditions will prevail through the entire 18z TAF period. SCT-BKN mainly high clouds will stream across the sky, although a few passing clouds at around 12,000-15,000ft will be possible from time to time as well. Winds will be S/SE at less than 10kt.
Ilx Watches
None.
Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.