Winthrop Harbor, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Winthrop Harbor, IL in one place.
Sunny. High near 60, with temperatures falling to around 54 in the afternoon. West northwest wind 5 to 10 mph.
Local Weather Overview
This forecast page for Winthrop Harbor, 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: Nov 9, 2026 5:07 PM CST.
The active forecast window currently covers Nov 10 to Nov 15, 2026 for Winthrop Harbor, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 10 to Nov 15, 2026
- Latest sync
- Nov 9, 2026 5:07 PM CST
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Winthrop Harbor
Tuesday looks like the warmest upcoming period in Winthrop Harbor at 60 degrees F.
Friday Night is the coolest period ahead with temperatures near 29 degrees F.
The strongest winds are forecast for Thursday at about 20 to 25 mph N.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 9, 2026 5:07 PM CST
- Coverage
- 7 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
Mostly cloudy, with a low around 39. West wind 0 to 5 mph.
A chance of rain. Mostly cloudy, with a high near 53. North wind 0 to 10 mph. Chance of precipitation is 40%.
A chance of rain. Mostly cloudy, with a low around 38. Chance of precipitation is 40%.
A chance of rain. Mostly cloudy, with a high near 46.
A chance of rain before 9pm, then a chance of rain and snow. Mostly cloudy, with a low around 31.
A chance of snow before noon, then a chance of rain. Mostly sunny, with a high near 44.
A slight chance of rain before 9pm, then a slight chance of snow between 9pm and midnight. Partly cloudy, with a low around 29.
Sunny, with a high near 46.
Mostly clear, with a low around 32.
Sunny, with a high near 48.
Partly cloudy, with a low around 36.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Nov 10
|
Sunny
|
60°F |
5 to 10 mph
WNW
|
|
Tuesday Night
Nov 10
|
Mostly Cloudy
|
39°F |
0 to 5 mph
W
|
|
Veterans Day
Nov 11
|
Chance Rain
|
53°F |
0 to 10 mph
N
|
|
Wednesday Night
Nov 11
|
Chance Rain
|
38°F |
10 to 15 mph
N
|
|
Thursday
Nov 12
|
Chance Rain
|
46°F |
20 to 25 mph
N
|
|
Thursday Night
Nov 12
|
Chance Rain And Snow
|
31°F |
15 mph
NNW
|
|
Friday
Nov 13
|
Chance Snow then Chance Rain
|
44°F |
10 to 15 mph
NNW
|
|
Friday Night
Nov 13
|
Slight Chance Snow then Partly Cloudy
|
29°F |
5 to 10 mph
NNW
|
|
Saturday
Nov 14
|
Sunny
|
46°F |
5 mph
NW
|
|
Saturday Night
Nov 14
|
Mostly Clear
|
32°F |
0 to 5 mph
NW
|
|
Sunday
Nov 15
|
Sunny
|
48°F |
5 mph
SW
|
|
Sunday Night
Nov 15
|
Partly Cloudy
|
36°F |
5 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Winthrop Harbor.