Jacksonville, IL Weather Forecast
Local 7-day forecast
Partly Sunny then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Jacksonville, IL in one place.
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 82. East southeast wind 5 to 8 mph.
Local Weather Overview
This forecast page for Jacksonville, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: May 24, 2026 10:07 AM CDT.
The active forecast window currently covers May 26 to May 30, 2026 for Jacksonville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 26 to May 30, 2026
- Latest sync
- May 24, 2026 10:07 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Jacksonville
Thursday looks like the warmest upcoming period in Jacksonville at 84 degrees F.
Saturday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Friday at about 8 to 12 mph ENE.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- May 24, 2026 10:07 AM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- ILX
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 10pm, then a chance of showers and thunderstorms between 10pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. East southeast wind around 7 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 7am, then showers and thunderstorms likely. Partly sunny, with a high near 83. East southeast wind around 7 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms likely before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Chance of precipitation is 60%.
A slight chance of rain showers before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 84. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 62.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 79.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 57.
A slight chance of rain showers before 7am, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 77.
A slight chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
May 26
|
Partly Sunny then Slight Chance Showers And Thunderstorms
|
82°F |
5 to 8 mph
ESE
|
|
Tuesday Night
May 26
|
Chance Showers And Thunderstorms
|
63°F |
7 mph
ESE
|
|
Wednesday
May 27
|
Chance Showers And Thunderstorms then Showers And Thunderstorms Likely
|
83°F |
7 mph
ESE
|
|
Wednesday Night
May 27
|
Showers And Thunderstorms Likely then Chance Showers And Thunderstorms
|
63°F |
5 mph
E
|
|
Thursday
May 28
|
Slight Chance Rain Showers then Chance Showers And Thunderstorms
|
84°F |
7 mph
E
|
|
Thursday Night
May 28
|
Chance Showers And Thunderstorms
|
62°F |
7 mph
ENE
|
|
Friday
May 29
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
79°F |
8 to 12 mph
ENE
|
|
Friday Night
May 29
|
Chance Showers And Thunderstorms
|
57°F |
9 mph
ENE
|
|
Saturday
May 30
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
77°F |
12 mph
ENE
|
|
Saturday Night
May 30
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
56°F |
6 to 9 mph
ENE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Jacksonville.
