McHenry, IL Weather Forecast
Local 7-day forecast
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for McHenry, IL in one place.
Showers and thunderstorms likely before 7am, then a slight chance of showers and thunderstorms between 7am and 1pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 80.
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: Apr 10, 2026 11:28 AM CDT.
The active forecast window currently covers Apr 14 to Apr 16, 2026 for McHenry, IL.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 14 to Apr 16, 2026
- Latest sync
- Apr 10, 2026 11:28 AM CDT
- Forecast office
- LOT
- Source
- NOAA / NWS
Daily Outlook
This Week in McHenry
Tuesday looks like the warmest upcoming period in McHenry at 80 degrees F.
Thursday Night is the coolest period ahead with temperatures near 50 degrees F.
The strongest winds are forecast for Wednesday at about 15 to 20 mph WSW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 10, 2026 11:28 AM CDT
- Coverage
- 3 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
Showers and thunderstorms. Mostly cloudy, with a low around 59.
A chance of rain showers before 7am, then a chance of showers and thunderstorms. Partly sunny, with a high near 71.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 51.
A chance of rain showers. Mostly sunny, with a high near 75.
A chance of rain showers. Partly cloudy, with a low around 50.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Apr 14
|
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
|
80°F |
15 mph
SW
|
|
Tuesday Night
Apr 14
|
Showers And Thunderstorms
|
59°F |
15 mph
SSW
|
|
Wednesday
Apr 15
|
Chance Showers And Thunderstorms
|
71°F |
15 to 20 mph
WSW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
51°F |
5 to 15 mph
WSW
|
|
Thursday
Apr 16
|
Chance Rain Showers
|
75°F |
5 to 15 mph
SSW
|
|
Thursday Night
Apr 16
|
Chance Rain Showers
|
50°F |
10 mph
WSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around McHenry.
