Montgomery County, IL Weather Forecast
County weather hub
Chance Showers And Thunderstorms
Compare major city weather across Montgomery County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of showers and thunderstorms. Partly sunny, with a high near 82. Chance of precipitation is 50%.
County Weather Overview
This county weather page brings together forecast coverage for Montgomery 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 Montgomery County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 14 to Apr 15, 2026
- Latest sync
- Apr 9, 2026 4:12 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Montgomery County
Tuesday looks like the warmest upcoming period in Montgomery County at 82 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 55 degrees F.
The strongest winds are forecast for Tuesday at about 12 to 18 mph S.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 9, 2026 4:12 PM CDT
- Coverage
- 2 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- 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 1am, then showers and thunderstorms likely. Mostly cloudy, with a low around 62. Chance of precipitation is 60%.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 78. Chance of precipitation is 60%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 55. Chance of precipitation is 40%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Apr 14
|
Chance Showers And Thunderstorms
|
82°F |
12 to 18 mph
S
|
|
Tuesday Night
Apr 14
|
Chance Showers And Thunderstorms
|
62°F |
15 mph
S
|
|
Wednesday
Apr 15
|
Showers And Thunderstorms Likely
|
78°F |
14 to 18 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
55°F |
8 to 13 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Montgomery County.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in Montgomery County.
Largest mapped city population in this region: 6,609.
