Marshall County, IL Weather Forecast
County weather hub
Widespread Frost then Sunny
Compare major city weather across Marshall County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Widespread frost before 8am. Sunny, with a high near 59. Southeast wind 2 to 7 mph.
County Weather Overview
This county weather page brings together forecast coverage for Marshall County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 5 of 5 mapped cities in Marshall County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 20 to Apr 24, 2026
- Latest sync
- Apr 18, 2026 2:45 PM CDT
- Forecast office
- ILX
- Source
- NOAA / NWS
Daily Outlook
This Week in Marshall County
Thursday looks like the warmest upcoming period in Marshall County at 83 degrees F.
Friday Night is the coolest period ahead with temperatures near 47 degrees F.
The strongest winds are forecast for Thursday at about 8 to 17 mph S.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 18, 2026 2:45 PM 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
Partly cloudy, with a low around 48. South wind 7 to 13 mph, with gusts as high as 23 mph.
Mostly sunny, with a high near 76. Southwest wind 13 to 16 mph, with gusts as high as 24 mph.
A slight chance of showers and thunderstorms between 7pm and 1am. Partly cloudy, with a low around 54.
Sunny, with a high near 79.
Mostly clear, with a low around 58.
Mostly sunny, with a high near 83.
Showers and thunderstorms likely after 7pm. Mostly cloudy, with a low around 61.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 74.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 47.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Apr 20
|
Widespread Frost then Sunny
|
59°F |
2 to 7 mph
SE
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
48°F |
7 to 13 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
76°F |
13 to 16 mph
SW
|
|
Tuesday Night
Apr 21
|
Slight Chance Showers And Thunderstorms
|
54°F |
6 to 12 mph
WSW
|
|
Wednesday
Apr 22
|
Sunny
|
79°F |
7 mph
SW
|
|
Wednesday Night
Apr 22
|
Mostly Clear
|
58°F |
7 mph
SSE
|
|
Thursday
Apr 23
|
Mostly Sunny
|
83°F |
8 to 17 mph
S
|
|
Thursday Night
Apr 23
|
Showers And Thunderstorms Likely
|
61°F |
16 mph
S
|
|
Friday
Apr 24
|
Showers And Thunderstorms Likely
|
74°F |
16 mph
SW
|
|
Friday Night
Apr 24
|
Chance Showers And Thunderstorms
|
47°F |
10 to 14 mph
W
|
Major City Forecasts
Live forecast snapshots for major cities across Marshall County.
Coverage
Forecast coverage currently spans 5 of 5 mapped cities in Marshall County.
Largest mapped city population in this region: 2,230.
