Round Lake Heights, IL Weather Forecast
Local 7-day forecast
Partly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Round Lake Heights, IL in one place.
Partly cloudy. Low around 36, with temperatures rising to around 38 overnight. West southwest wind 10 to 15 mph, with gusts as high as 25 mph.
Local Weather Overview
This forecast page for Round Lake Heights, 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 8, 2026 3:17 AM CST.
The active forecast window currently covers Nov 8 to Nov 14, 2026 for Round Lake Heights, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 8 to Nov 14, 2026
- Latest sync
- Nov 8, 2026 3:17 AM CST
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in Round Lake Heights
Tuesday looks like the warmest upcoming period in Round Lake Heights at 61 degrees F.
Thursday Night is the coolest period ahead with temperatures near 29 degrees F.
The strongest winds are forecast for Overnight at about 10 to 15 mph WSW.
Precipitation is mentioned in 3 upcoming forecast periods.
Forecast Details
- Last updated
- Nov 8, 2026 3:17 AM 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
Sunny. High near 59, with temperatures falling to around 54 in the afternoon. West wind 10 to 15 mph, with gusts as high as 30 mph.
Mostly clear, with a low around 36. West northwest wind 5 to 10 mph.
Mostly sunny, with a high near 57. West southwest wind 0 to 10 mph, with gusts as high as 20 mph.
Mostly clear, with a low around 40. West wind 5 to 10 mph, with gusts as high as 20 mph.
Sunny, with a high near 61.
Partly cloudy, with a low around 37.
A slight chance of rain showers. Partly sunny, with a high near 54.
A slight chance of rain. Mostly cloudy, with a low around 35.
A slight chance of rain before noon. Partly sunny, with a high near 47.
Partly cloudy, with a low around 29.
Mostly sunny, with a high near 46.
Partly cloudy, with a low around 31.
Mostly sunny, with a high near 52.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Nov 8
|
Partly Cloudy
|
36°F |
10 to 15 mph
WSW
|
|
Sunday
Nov 8
|
Sunny
|
59°F |
10 to 15 mph
W
|
|
Sunday Night
Nov 8
|
Mostly Clear
|
36°F |
5 to 10 mph
WNW
|
|
Monday
Nov 9
|
Mostly Sunny
|
57°F |
0 to 10 mph
WSW
|
|
Monday Night
Nov 9
|
Mostly Clear
|
40°F |
5 to 10 mph
W
|
|
Tuesday
Nov 10
|
Sunny
|
61°F |
5 mph
WNW
|
|
Tuesday Night
Nov 10
|
Partly Cloudy
|
37°F |
0 to 5 mph
NW
|
|
Veterans Day
Nov 11
|
Slight Chance Rain Showers
|
54°F |
0 to 5 mph
N
|
|
Wednesday Night
Nov 11
|
Slight Chance Rain
|
35°F |
5 to 10 mph
N
|
|
Thursday
Nov 12
|
Slight Chance Rain then Partly Sunny
|
47°F |
10 mph
N
|
|
Thursday Night
Nov 12
|
Partly Cloudy
|
29°F |
5 to 10 mph
N
|
|
Friday
Nov 13
|
Mostly Sunny
|
46°F |
5 mph
NNW
|
|
Friday Night
Nov 13
|
Partly Cloudy
|
31°F |
0 mph
|
|
Saturday
Nov 14
|
Mostly Sunny
|
52°F |
5 mph
WNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Round Lake Heights.