McHenry, IL Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for McHenry, IL in one place.
Sunny, with a high near 82. West wind 5 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: Oct 12, 2026 3:53 AM CDT.
The active forecast window currently covers Oct 13 to Oct 18, 2026 for McHenry, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 18, 2026
- Latest sync
- Oct 12, 2026 3:53 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in McHenry
Tuesday looks like the warmest upcoming period in McHenry at 82 degrees F.
Friday Night is the coolest period ahead with temperatures near 34 degrees F.
The strongest winds are forecast for Friday at about 15 to 20 mph NW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 12, 2026 3:53 AM CDT
- Coverage
- 6 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
Rain showers likely after 7pm. Mostly cloudy, with a low around 59. North wind 0 to 5 mph. Chance of precipitation is 70%.
Rain showers likely before 1pm. Mostly cloudy, with a high near 69. Chance of precipitation is 70%.
A slight chance of rain showers after 1am. Mostly cloudy, with a low around 52.
A slight chance of rain showers before 7am, then showers and thunderstorms likely. Mostly cloudy, with a high near 66.
Showers and thunderstorms likely before 1am. Mostly cloudy, with a low around 46.
Partly sunny, with a high near 57.
Partly cloudy, with a low around 34.
Sunny, with a high near 56.
Mostly clear, with a low around 37.
Sunny, with a high near 62.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Sunny
|
82°F |
5 to 15 mph
W
|
|
Tuesday Night
Oct 13
|
Rain Showers Likely
|
59°F |
0 to 5 mph
N
|
|
Wednesday
Oct 14
|
Rain Showers Likely
|
69°F |
5 to 10 mph
NE
|
|
Wednesday Night
Oct 14
|
Mostly Cloudy then Slight Chance Rain Showers
|
52°F |
5 to 10 mph
NE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms Likely
|
66°F |
10 mph
ENE
|
|
Thursday Night
Oct 15
|
Showers And Thunderstorms Likely
|
46°F |
5 to 15 mph
NNW
|
|
Friday
Oct 16
|
Partly Sunny
|
57°F |
15 to 20 mph
NW
|
|
Friday Night
Oct 16
|
Partly Cloudy
|
34°F |
0 to 15 mph
NNW
|
|
Saturday
Oct 17
|
Sunny
|
56°F |
0 to 5 mph
W
|
|
Saturday Night
Oct 17
|
Mostly Clear
|
37°F |
0 to 5 mph
SW
|
|
Sunday
Oct 18
|
Sunny
|
62°F |
10 to 15 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around McHenry.
