Marion County, IL Weather Forecast
County weather hub
Chance Showers And Thunderstorms
Compare major city weather across Marion County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 88. Chance of precipitation is 50%.
County Weather Overview
This county weather page brings together forecast coverage for Marion County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 3 of 3 mapped cities in Marion County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 10 to Jul 11, 2026
- Latest sync
- Jul 4, 2026 9:37 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Marion County
Friday looks like the warmest upcoming period in Marion County at 88 degrees F.
Friday Night is the coolest period ahead with temperatures near 70 degrees F.
The strongest winds are forecast for Friday at about 6 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 4, 2026 9:37 PM CDT
- Coverage
- 2 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KVWX
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. Partly cloudy, with a low around 70. Chance of precipitation is 50%.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 87. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Jul 10
|
Chance Showers And Thunderstorms
|
88°F |
6 mph
SW
|
|
Friday Night
Jul 10
|
Chance Showers And Thunderstorms
|
70°F |
1 to 5 mph
S
|
|
Saturday
Jul 11
|
Slight Chance Showers And Thunderstorms
|
87°F |
5 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Marion County.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in Marion County.
Largest mapped city population in this region: 6,952.
