Monroe County, IL Weather Forecast
County weather hub
Sunny
Compare major city weather across Monroe County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 94. Heat index values as high as 100. Southwest wind 6 to 9 mph.
County Weather Overview
This county weather page brings together forecast coverage for Monroe 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 Monroe County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 12, 2026 2:07 PM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Monroe County
Tuesday looks like the warmest upcoming period in Monroe County at 94 degrees F.
Saturday Night is the coolest period ahead with temperatures near 38 degrees F.
The strongest winds are forecast for Friday at about 18 mph NW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 12, 2026 2:07 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms between 1am and 3am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 71. Southwest wind around 8 mph. Chance of precipitation is 50%.
Showers and thunderstorms. Mostly cloudy, with a high near 81. West wind around 5 mph. Chance of precipitation is 90%.
Showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 10pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 67. Chance of precipitation is 90%.
Showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 80%.
Showers and thunderstorms likely before 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 63. Chance of precipitation is 30%.
Partly cloudy, with a low around 40.
Sunny, with a high near 60.
Clear, with a low around 38.
Sunny, with a high near 69.
Mostly clear, with a low around 46.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny
|
94°F |
6 to 9 mph
SW
|
|
Tuesday Night
Oct 13
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
71°F |
8 mph
SW
|
|
Wednesday
Oct 14
|
Showers And Thunderstorms
|
81°F |
5 mph
W
|
|
Wednesday Night
Oct 14
|
Showers And Thunderstorms
|
67°F |
3 mph
NE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms
|
83°F |
7 mph
S
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms Likely
|
54°F |
6 to 17 mph
NW
|
|
Friday
Oct 16
|
Chance Showers And Thunderstorms then Mostly Sunny
|
63°F |
18 mph
NW
|
|
Friday Night
Oct 16
|
Partly Cloudy
|
40°F |
7 to 16 mph
N
|
|
Saturday
Oct 17
|
Sunny
|
60°F |
6 mph
NE
|
|
Saturday Night
Oct 17
|
Clear
|
38°F |
3 mph
E
|
|
Sunday
Oct 18
|
Sunny
|
69°F |
3 to 7 mph
S
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
46°F |
6 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across Monroe County.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in Monroe County.
Largest mapped city population in this region: 10,627.