Jacksonville, IL Weather Forecast
Local 7-day forecast
Patchy Fog
Track current conditions, temperature changes, wind, and the full daily outlook for Jacksonville, IL in one place.
Patchy fog. Partly cloudy, with a low around 66. Southwest wind around 1 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: Jul 10, 2026 6:27 AM CDT.
The active forecast window currently covers Jul 10 to Jul 16, 2026 for Jacksonville, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 10 to Jul 16, 2026
- Latest sync
- Jul 10, 2026 6:27 AM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Jacksonville
Wednesday looks like the warmest upcoming period in Jacksonville at 91 degrees F.
Sunday Night is the coolest period ahead with temperatures near 65 degrees F.
The strongest winds are forecast for Sunday at about 5 to 9 mph ENE.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 10, 2026 6:27 AM CDT
- Coverage
- 7 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
Patchy fog before 8am, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. South southwest wind around 3 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. North northeast wind around 5 mph. Chance of precipitation is 40%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 84. North northeast wind 3 to 7 mph. Chance of precipitation is 30%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 66. Northeast wind 3 to 7 mph. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain showers before 7am. Sunny, with a high near 86. East northeast wind 5 to 9 mph. New rainfall amounts less than a tenth of an inch possible.
Mostly clear, with a low around 65. Northeast wind 2 to 8 mph.
Sunny, with a high near 87.
Clear, with a low around 67.
Sunny, with a high near 89.
Mostly clear, with a low around 69.
Sunny, with a high near 91.
Mostly clear, with a low around 71.
Sunny, with a high near 90.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jul 10
|
Patchy Fog
|
66°F |
1 mph
SW
|
|
Friday
Jul 10
|
Patchy Fog then Chance Showers And Thunderstorms
|
88°F |
3 mph
SSW
|
|
Friday Night
Jul 10
|
Chance Showers And Thunderstorms
|
68°F |
5 mph
NNE
|
|
Saturday
Jul 11
|
Chance Showers And Thunderstorms
|
84°F |
3 to 7 mph
NNE
|
|
Saturday Night
Jul 11
|
Partly Cloudy then Slight Chance Rain Showers
|
66°F |
3 to 7 mph
NE
|
|
Sunday
Jul 12
|
Slight Chance Rain Showers then Sunny
|
86°F |
5 to 9 mph
ENE
|
|
Sunday Night
Jul 12
|
Mostly Clear
|
65°F |
2 to 8 mph
NE
|
|
Monday
Jul 13
|
Sunny
|
87°F |
3 to 7 mph
ENE
|
|
Monday Night
Jul 13
|
Clear
|
67°F |
1 to 6 mph
ENE
|
|
Tuesday
Jul 14
|
Sunny
|
89°F |
5 mph
ENE
|
|
Tuesday Night
Jul 14
|
Mostly Clear
|
69°F |
3 mph
SSE
|
|
Wednesday
Jul 15
|
Sunny
|
91°F |
3 mph
WSW
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
71°F |
3 mph
SSW
|
|
Thursday
Jul 16
|
Sunny
|
90°F |
3 to 7 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Jacksonville.
