McDonough County, IL Weather Forecast
County weather hub
Areas Of Frost then Sunny
Compare major city weather across McDonough County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Areas of frost before 9am. Sunny, with a high near 57. East wind around 0 mph.
County Weather Overview
This county weather page brings together forecast coverage for McDonough County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in McDonough County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Oct 17 to Oct 22, 2026
- Latest sync
- Oct 15, 2026 10:23 PM CDT
- Forecast office
- DVN
- Source
- NOAA / NWS
Daily Outlook
This Week in McDonough County
Wednesday looks like the warmest upcoming period in McDonough County at 76 degrees F.
Saturday Night is the coolest period ahead with temperatures near 36 degrees F.
The strongest winds are forecast for Sunday at about 5 to 10 mph S.
The forecast from Oct 17 through Oct 22 stays mostly dry.
Forecast Details
- Last updated
- Oct 15, 2026 10:23 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- DVN
- Radar station
- KILX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Areas of frost after 5am. Clear, with a low around 36.
Areas of frost before 8am. Sunny, with a high near 66.
Mostly clear, with a low around 40.
Mostly sunny, with a high near 69.
Partly cloudy, with a low around 44.
Mostly sunny, with a high near 74.
Mostly clear, with a low around 48.
Sunny, with a high near 76.
Mostly clear, with a low around 51.
Sunny, with a high near 76.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Oct 17
|
Areas Of Frost then Sunny
|
57°F |
0 mph
|
|
Saturday Night
Oct 17
|
Clear then Areas Of Frost
|
36°F |
0 to 5 mph
S
|
|
Sunday
Oct 18
|
Areas Of Frost then Sunny
|
66°F |
5 to 10 mph
S
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
40°F |
0 to 5 mph
S
|
|
Monday
Oct 19
|
Mostly Sunny
|
69°F |
0 to 5 mph
S
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
44°F |
0 mph
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
74°F |
0 mph
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
48°F |
0 mph
|
|
Wednesday
Oct 21
|
Sunny
|
76°F |
0 to 5 mph
SE
|
|
Wednesday Night
Oct 21
|
Mostly Clear
|
51°F |
0 to 5 mph
SE
|
|
Thursday
Oct 22
|
Sunny
|
76°F |
0 to 5 mph
S
|
Major City Forecasts
Live forecast snapshots for major cities across McDonough County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in McDonough County.
Largest mapped city population in this region: 17,206.
