Deer Lake, IL Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Deer Lake, IL in one place.
Mostly cloudy. Low around 36, with temperatures rising to around 38 overnight. North northwest wind around 10 mph, with gusts as high as 25 mph.
Local Weather Overview
This forecast page for Deer Lake, 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 6, 2026 6:18 AM CST.
The active forecast window currently covers Nov 6 to Nov 12, 2026 for Deer Lake, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 12, 2026
- Latest sync
- Nov 6, 2026 6:18 AM CST
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Deer Lake
Monday looks like the warmest upcoming period in Deer Lake at 62 degrees F.
Friday Night is the coolest period ahead with temperatures near 31 degrees F.
The strongest winds are forecast for Friday at about 10 to 15 mph NNW.
Precipitation is mentioned in 1 upcoming forecast period.
Forecast Details
- Last updated
- Nov 6, 2026 6:18 AM CST
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LOT
- Radar station
- KLOT
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly sunny. High near 46, with temperatures falling to around 43 in the afternoon. North northwest wind 10 to 15 mph, with gusts as high as 25 mph.
Partly cloudy, with a low around 31. North northwest wind around 5 mph, with gusts as high as 15 mph.
Mostly sunny, with a high near 50. West wind around 5 mph, with gusts as high as 15 mph.
Partly cloudy, with a low around 36. West southwest wind 5 to 10 mph.
Sunny, with a high near 59.
Mostly clear, with a low around 36.
Sunny, with a high near 62.
Mostly clear, with a low around 41.
Sunny, with a high near 61.
Partly cloudy, with a low around 38.
Mostly sunny, with a high near 57.
Mostly cloudy, with a low around 39.
A slight chance of rain before noon. Partly sunny, with a high near 53.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Nov 6
|
Mostly Cloudy
|
36°F |
10 mph
NNW
|
|
Friday
Nov 6
|
Mostly Sunny
|
46°F |
10 to 15 mph
NNW
|
|
Friday Night
Nov 6
|
Partly Cloudy
|
31°F |
5 mph
NNW
|
|
Saturday
Nov 7
|
Mostly Sunny
|
50°F |
5 mph
W
|
|
Saturday Night
Nov 7
|
Partly Cloudy
|
36°F |
5 to 10 mph
WSW
|
|
Sunday
Nov 8
|
Sunny
|
59°F |
10 mph
W
|
|
Sunday Night
Nov 8
|
Mostly Clear
|
36°F |
0 to 5 mph
W
|
|
Monday
Nov 9
|
Sunny
|
62°F |
0 to 10 mph
SW
|
|
Monday Night
Nov 9
|
Mostly Clear
|
41°F |
5 to 10 mph
WSW
|
|
Tuesday
Nov 10
|
Sunny
|
61°F |
5 mph
WNW
|
|
Tuesday Night
Nov 10
|
Partly Cloudy
|
38°F |
0 to 5 mph
WNW
|
|
Veterans Day
Nov 11
|
Mostly Sunny
|
57°F |
0 to 5 mph
NNW
|
|
Wednesday Night
Nov 11
|
Mostly Cloudy
|
39°F |
0 to 5 mph
N
|
|
Thursday
Nov 12
|
Slight Chance Rain then Partly Sunny
|
53°F |
5 to 10 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Deer Lake.