Macoupin County, IL Weather Forecast
County weather hub
Mostly Clear
Compare major city weather across Macoupin County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly clear, with a low around 60. Southeast wind around 2 mph.
County Weather Overview
This county weather page brings together forecast coverage for Macoupin County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 9 of 9 mapped cities in Macoupin County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Aug 29 to Sep 4, 2026
- Latest sync
- Aug 29, 2026 2:58 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Macoupin County
Tuesday looks like the warmest upcoming period in Macoupin County at 97 degrees F.
Overnight is the coolest period ahead with temperatures near 60 degrees F.
The strongest winds are forecast for Sunday at about 6 to 10 mph S.
The forecast from Aug 29 through Sep 4 stays mostly dry.
Forecast Details
- Last updated
- Aug 29, 2026 2:58 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 87. South wind 2 to 8 mph.
Partly cloudy, with a low around 67. South wind around 7 mph.
Mostly sunny, with a high near 92. South wind 6 to 10 mph.
Mostly clear, with a low around 73. South wind around 8 mph.
Sunny, with a high near 96.
Mostly clear, with a low around 75.
Sunny, with a high near 97.
Mostly clear, with a low around 76.
Sunny, with a high near 96.
Mostly clear, with a low around 76.
Sunny, with a high near 96.
Mostly clear, with a low around 75.
Sunny, with a high near 95.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Aug 29
|
Mostly Clear
|
60°F |
2 mph
SE
|
|
Saturday
Aug 29
|
Mostly Sunny
|
87°F |
2 to 8 mph
S
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
67°F |
7 mph
S
|
|
Sunday
Aug 30
|
Mostly Sunny
|
92°F |
6 to 10 mph
S
|
|
Sunday Night
Aug 30
|
Mostly Clear
|
73°F |
8 mph
S
|
|
Monday
Aug 31
|
Sunny
|
96°F |
6 to 9 mph
S
|
|
Monday Night
Aug 31
|
Mostly Clear
|
75°F |
6 mph
S
|
|
Tuesday
Sep 1
|
Sunny
|
97°F |
5 to 8 mph
SW
|
|
Tuesday Night
Sep 1
|
Mostly Clear
|
76°F |
6 mph
S
|
|
Wednesday
Sep 2
|
Sunny
|
96°F |
7 mph
SW
|
|
Wednesday Night
Sep 2
|
Mostly Clear
|
76°F |
5 mph
S
|
|
Thursday
Sep 3
|
Sunny
|
96°F |
6 mph
SW
|
|
Thursday Night
Sep 3
|
Mostly Clear
|
75°F |
5 mph
S
|
|
Friday
Sep 4
|
Sunny
|
95°F |
3 to 7 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Macoupin County.
Coverage
Forecast coverage currently spans 9 of 9 mapped cities in Macoupin County.
Largest mapped city population in this region: 5,441.
