Winnebago, IL Weather Forecast
Local 7-day forecast
Partly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Winnebago, IL in one place.
Partly sunny, with a high near 79.
Local Weather Overview
This forecast page for Winnebago, IL is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Aug 27, 2026 6:14 AM CDT.
The active forecast window currently covers Aug 29 to Sep 2, 2026 for Winnebago, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 2, 2026
- Latest sync
- Aug 27, 2026 6:14 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Winnebago
Sunday looks like the warmest upcoming period in Winnebago at 86 degrees F.
Saturday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Sunday at about 15 to 20 mph SSW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 27, 2026 6:14 AM 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
A chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 66.
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 86.
A chance of showers and thunderstorms after 7pm. Mostly cloudy, with a low around 70.
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 86.
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70.
A chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 86.
A slight chance of showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 68.
A chance of showers and thunderstorms before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 85.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Partly Sunny
|
79°F |
5 to 15 mph
S
|
|
Saturday Night
Aug 29
|
Chance Showers And Thunderstorms
|
66°F |
15 mph
S
|
|
Sunday
Aug 30
|
Chance Showers And Thunderstorms
|
86°F |
15 to 20 mph
SSW
|
|
Sunday Night
Aug 30
|
Chance Showers And Thunderstorms
|
70°F |
15 mph
S
|
|
Monday
Aug 31
|
Chance Showers And Thunderstorms
|
86°F |
10 to 15 mph
SSW
|
|
Monday Night
Aug 31
|
Partly Cloudy then Chance Showers And Thunderstorms
|
70°F |
5 to 10 mph
SSW
|
|
Tuesday
Sep 1
|
Chance Showers And Thunderstorms
|
86°F |
5 to 10 mph
SW
|
|
Tuesday Night
Sep 1
|
Slight Chance Showers And Thunderstorms
|
68°F |
5 mph
SSE
|
|
Wednesday
Sep 2
|
Chance Showers And Thunderstorms then Slight Chance Showers And Thunderstorms
|
85°F |
5 to 10 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Winnebago.