Winnebago County, IL Weather Forecast
County weather hub
Sunny
Compare major city weather across Winnebago County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Sunny, with a high near 93.
County Weather Overview
This county weather page brings together forecast coverage for Winnebago County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 5 of 5 mapped cities in Winnebago County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jul 14 to Jul 18, 2026
- Latest sync
- Jul 11, 2026 8:54 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Winnebago County
Tuesday looks like the warmest upcoming period in Winnebago County at 93 degrees F.
Wednesday Night is the coolest period ahead with temperatures near 69 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 mph SW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 11, 2026 8:54 PM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KMKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 70.
Sunny, with a high near 92.
Mostly clear, with a low around 69.
Sunny, with a high near 89.
Partly cloudy, with a low around 69.
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 89.
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 69.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jul 14
|
Sunny
|
93°F |
0 to 5 mph
NW
|
|
Tuesday Night
Jul 14
|
Clear
|
70°F |
0 to 5 mph
WNW
|
|
Wednesday
Jul 15
|
Sunny
|
92°F |
0 to 5 mph
WNW
|
|
Wednesday Night
Jul 15
|
Mostly Clear
|
69°F |
0 to 5 mph
WSW
|
|
Thursday
Jul 16
|
Sunny
|
89°F |
0 to 10 mph
SW
|
|
Thursday Night
Jul 16
|
Partly Cloudy
|
69°F |
5 to 10 mph
SW
|
|
Friday
Jul 17
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
89°F |
5 to 10 mph
SW
|
|
Friday Night
Jul 17
|
Slight Chance Showers And Thunderstorms
|
69°F |
5 to 10 mph
SSW
|
|
Saturday
Jul 18
|
Slight Chance Showers And Thunderstorms
|
88°F |
10 to 15 mph
SW
|
Major City Forecasts
Live forecast snapshots for major cities across Winnebago County.
Coverage
Forecast coverage currently spans 5 of 5 mapped cities in Winnebago County.
Largest mapped city population in this region: 144,835.
