Monroe County, IL Weather Forecast
County weather hub
Partly Cloudy
Compare major city weather across Monroe County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Partly cloudy, with a low around 56. Northeast wind around 2 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
- Aug 24 to Aug 30, 2026
- Latest sync
- Aug 24, 2026 5:51 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Monroe County
Sunday looks like the warmest upcoming period in Monroe County at 90 degrees F.
Overnight is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Sunday at about 7 mph S.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 24, 2026 5:51 AM CDT
- Coverage
- 7 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
Mostly sunny, with a high near 81. East wind around 2 mph.
Partly cloudy, with a low around 63. East wind around 3 mph.
Mostly sunny, with a high near 83. East wind around 5 mph.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 66. Southeast wind around 3 mph. Chance of precipitation is 20%.
A slight chance of rain showers before 4pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 86. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 67. Chance of precipitation is 20%.
Sunny, with a high near 85.
Mostly clear, with a low around 64.
Sunny, with a high near 85.
Mostly clear, with a low around 65.
Mostly sunny, with a high near 87.
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 69. Chance of precipitation is 20%.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 90. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Aug 24
|
Partly Cloudy
|
56°F |
2 mph
NE
|
|
Monday
Aug 24
|
Mostly Sunny
|
81°F |
2 mph
E
|
|
Monday Night
Aug 24
|
Partly Cloudy
|
63°F |
3 mph
E
|
|
Tuesday
Aug 25
|
Mostly Sunny
|
83°F |
5 mph
E
|
|
Tuesday Night
Aug 25
|
Partly Cloudy then Slight Chance Rain Showers
|
66°F |
3 mph
SE
|
|
Wednesday
Aug 26
|
Slight Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
86°F |
3 mph
SW
|
|
Wednesday Night
Aug 26
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
67°F |
3 mph
SW
|
|
Thursday
Aug 27
|
Sunny
|
85°F |
6 mph
NW
|
|
Thursday Night
Aug 27
|
Mostly Clear
|
64°F |
1 to 5 mph
N
|
|
Friday
Aug 28
|
Sunny
|
85°F |
2 mph
NE
|
|
Friday Night
Aug 28
|
Mostly Clear
|
65°F |
3 mph
SE
|
|
Saturday
Aug 29
|
Mostly Sunny
|
87°F |
5 mph
S
|
|
Saturday Night
Aug 29
|
Mostly Cloudy then Slight Chance Rain Showers
|
69°F |
6 mph
S
|
|
Sunday
Aug 30
|
Slight Chance Rain Showers then Mostly Sunny
|
90°F |
7 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.