Install
Jacksonville, IL Weather
Current conditions
Observed at Jacksonville Municipal Airport · 1 hr ago
Forecast
10-day-
Friday
Sunny, with a high near 76. South southeast wind 2 to 6 mph.
-
Friday Night
Mostly clear, with a low around 47. Southeast wind around 5 mph.
-
Saturday
Mostly sunny, with a high near 75. South southeast wind around 6 mph.
National Weather Service forecast updated 1 day ago.
Hourly
Hourly forecast- Now75°
- 4 PM76°
- 5 PM74°
- 6 PM71°
- 7 PM66°
- 8 PM60°
- 9 PM57°
- 10 PM56°
- 11 PM55°
- Sat12 AM54°
- 1 AM53°
- 2 AM52°
- 3 AM51°
- 4 AM49°
- 5 AM48°
- 6 AM47°
- 7 AM47°
- 8 AM51°
- 9 AM56°
- 10 AM61°
- 11 AM66°
- 12 PM70°
- 1 PM72°
- 2 PM75°
10-day forecast
Details- ThuOct 22Sunny48°77°
- TodayOct 23Sunny47°76°
- SatOct 24Mostly Sunny48°75°
- SunOct 25Mostly Sunny50°78°
- MonOct 26Partly Sunny48°77°
- TueOct 27Partly Sunny44°70°
- WedOct 28Mostly Sunny46°68°
- ThuOct 29Partly cloudy0.04 in39°62°
- FriOct 30Sunny34°52°
- SatOct 31Cloudy38°58°
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 near Jacksonville
More weather news-
Winds, cooler temperatures could lead to first frostJacksonville could see its first frost of the season overnight Friday or Saturday night as temperatures cool to the mid-30s, according to the National Weather Service. Those with vulnerable plants should plan to take…
- Capitol Fax.com - Your Illinois News Radar » Good morning!
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…
-
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…
-
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…
-
Another beautiful day ahead for Central IllinoisDECATUR, Ill. (WAND) – If you’re looking for a reason to get outside, Tuesday is your day. A high-pressure system settling over the Midwest is bringing abundant sunshine and calm winds to Central Illinois, with…
- Central Illinois Winter Weather Outlook
The winter weather outlook for central and southeast Illinois has been released, and a detailed summary is available at this link. Some of the highlights: Current Conditions Latest Observations Daily Climate Maps…
-
One of the year’s most pleasant weather stretches arrives in Central IllinoisDECATUR, Ill. (WAND) – A beautiful stretch of sunshine and mild temperatures is settling into the region, and it’s the perfect time to get outside and enjoy it. High pressure is taking control of the Midwest, locking in…
-
A great week ahead for Central IllinoisWAND DECATUR, Ill. (WAND) – A wonderful weekend across Central Illinois carries into the start of the workweek. Overnight lows dip back into the upper 30s tonight with a small risk for patchy frost, though coverage will…
-
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…
-
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
Air quality
Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.
Forecast
- FriModerate
- SatModerate
- SunModerate
Springfield, IL reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.
Sun & moon
Almanac
MonthlyJacksonville 2e, records since 1895. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).
Nearby
- Springfield 51 km
- Chatham 45 km
- Beardstown 36 km
- Carlinville 59 km
- Auburn 44 km
- Sherman 56 km
- Pittsfield 51 km
- Rochester 60 km
- Virden 47 km
- South Jacksonville 3 km
- Rushville 52 km
- Pawnee 58 km
Forecasters' discussion
From the National Weather Service office in ILX, issued 2 hrs ago
Key Messages
- Temperatures will average 10 to 15 degrees above seasonal normals through most of next week, with only modest cooling toward late week.
- Tranquil weather will continue for several more days, with the only meaningful chance of rain toward the middle of next week.
Discussion
Issued at 112 PM CDT Fri Oct 23 2026
Omega block pattern remains in place over the CONUS late this week, with an upper level high pressure ridge across the central U.S. bookended by lows over southwest Montana and off the Canadian Maritimes. Some flattening/leaning of the ridge will take place this weekend as low pressure moves across the Canadian prairies, but the only real consequence for our area will be some higher level clouds at times. Temperatures will continue a large diurnal spread, from mid-upper 40s at night to mid- upper 70s during the day. Most high temperature records across the region should be just out of reach, but a few may be approached over west central Illinois.
As we get into the work week, the ridge will very gradually slide off to the east, with little change in temperatures. It will take until mid week before we finally see some change in the pattern. Tuesday morning, synoptic models are in good agreement with a broad trough over the Pacific Northwest, pushing toward the northern Plains on Wednesday. At that point, the guidance begins to differ. The GFS solution becomes slower/weaker as a low develops over southwest British Columbia, which would result in lighter rain chances toward Thursday and a rebuilding of the ridge late in the week. The European solution deepens a trough over central parts of Canada/U.S. and a quick shot of showers Wednesday night, slowly moving the trough through the Great Lakes late week.
Temperatures become more uncertain late in the week, with NBM box-and-whiskers plots showing temperature spreads of 15 to 20 degrees in the 25-75th percentiles (both highs and lows). While the European ensembles do trend toward below normal temperatures late next week, a non-trivial number retain above normal tendencies into the Halloween weekend. GFS ensembles are more solidly in the warmer trend, as would be expected with ridging overhead.
Aviation
Issued at 1200 PM CDT Fri Oct 23 2026
VFR conditions to continue through Saturday, with only scattered high-level clouds at times. South/southeast winds will average 5-7 knots through the period.
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 4Search index and reflects what the press published. Terms of use.