McHenry, IL Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for McHenry, IL in one place.
Mostly cloudy, with a high near 72. East northeast wind 10 to 15 mph, with gusts as high as 25 mph.
Local Weather Overview
This forecast page for McHenry, 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: May 28, 2026 6:47 PM CDT.
The active forecast window currently covers May 30 to Jun 3, 2026 for McHenry, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- May 30 to Jun 3, 2026
- Latest sync
- May 28, 2026 6:47 PM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in McHenry
Monday looks like the warmest upcoming period in McHenry at 81 degrees F.
Saturday Night is the coolest period ahead with temperatures near 49 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 mph ENE.
The forecast from May 30 through Jun 3 stays mostly dry.
Forecast Details
- Last updated
- May 28, 2026 6:47 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
Mostly cloudy, with a low around 49.
Mostly sunny, with a high near 76.
Partly cloudy, with a low around 54.
Mostly sunny, with a high near 81.
Mostly clear, with a low around 53.
Sunny, with a high near 78.
Mostly clear, with a low around 53.
Sunny, with a high near 80.
Mostly clear, with a low around 58.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
May 30
|
Mostly Cloudy
|
72°F |
10 to 15 mph
ENE
|
|
Saturday Night
May 30
|
Mostly Cloudy
|
49°F |
5 to 15 mph
E
|
|
Sunday
May 31
|
Mostly Sunny
|
76°F |
5 mph
ESE
|
|
Sunday Night
May 31
|
Partly Cloudy
|
54°F |
0 to 5 mph
NE
|
|
Monday
Jun 1
|
Mostly Sunny
|
81°F |
0 to 10 mph
NNE
|
|
Monday Night
Jun 1
|
Mostly Clear
|
53°F |
5 to 10 mph
NE
|
|
Tuesday
Jun 2
|
Sunny
|
78°F |
5 to 10 mph
ENE
|
|
Tuesday Night
Jun 2
|
Mostly Clear
|
53°F |
5 to 10 mph
E
|
|
Wednesday
Jun 3
|
Sunny
|
80°F |
5 to 10 mph
SE
|
|
Wednesday Night
Jun 3
|
Mostly Clear
|
58°F |
5 to 10 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around McHenry.
