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McHenry, IL Weather Conditions

Updated: Fri Mar 13th 2026 12:00 AM CDT

Overcast

39^°F 4^°C

Feels Like 28^°F / -2^°C

McHenry, IL weather condition is Overcast and 39°F.

Today's Weather in McHenry,IL

The current weather in McHenry IL as of 12:00 AM CDT on Fri Mar 13th 2026, has a sky condition of Overcast with the visibility of 9 mile(s). It is 39 degrees fahrenheit but feels like 28 degrees. The barometric pressure is 29.85 - measured by inches of mercury - and is steady since its last observation. The humidity is 62 percent that's steady since the last report, with a dew point of 34 degrees fahrenheit which is steady. Wind direction is from the South at 25.5 miles per hour, gusting at 36.5 miles per hour. Sunrise is at 7:08 AM and Sunset is at 6:57 PM. The moon phase is a Waning Crescent moon rising at 4:26 AM. Thank you for listening to the weather report from LocalConditions.com!

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Sun & Moon

Sun

Sunrise: 7:08 AM

Sunset: 6:57 PM

As of:

Moon

Moonrise: 4:26 AM

Moonset: 1:06 PM

Phase: Waning Crescent Moon

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Hourly Forecast - Next 8 hours

Next 5 Days...

Overcast

Overcast with a high of 35°F and a low of 27°F. Winds will be moderate, blowing around 15mph. The humidity will be on the higher side, reaching around 73%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 35° \| Lo 27°	73%	0%	0%	15 mph

Moderate Rain

Moderate Rain with a high of 54°F and a low of 28°F. Probable rainfall forecasted, having an 86% chance with an estimated 0.57in. Possible light Snowfall with a 9% chance estimated at 0.3in accumulation. Winds will be strong at speeds peaking at 28mph. Expect high humidity with levels above 80% to 89%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 54° \| Lo 28°	89%	86% \| est. 0.57in	9% \| est. 0.3in	27.7 mph

Blizzard

Blizzard with a high of 20°F and a low of 7°F. Probable rainfall forecasted, having a 62% chance with an estimated 0.59in. Snowfall has a likely chance of 56% with an estimated accumulation of 0in. Winds will be strong at speeds peaking at 28mph. Expect high humidity with levels above 80% to 90%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 20° \| Lo 7°	90%	62% \| est. 0.59in	56% \| est. 0in	27.7 mph

Light Freezing Rain

Light Freezing Rain with a high of 18°F and a low of -4°F. Probable rainfall forecasted, having a 62% chance with an estimated 0.01in. Possible light Snowfall with a 4% chance estimated at 0.1in accumulation. Winds will be moderate, blowing around 11mph. Expect high humidity with levels above 80% to 90%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 18° \| Lo -4°	90%	62% \| est. 0.01in	4% \| est. 0.1in	11 mph

Light Snow

Light Snow with a high of 34°F and a low of 22°F. Probable rainfall forecasted, having a 68% chance with an estimated 0.04in. Snow is likely with a 45% chance having an estimated 0.2in. Winds will be moderate, blowing around 18mph. Expect high humidity with levels above 80% to 98%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 34° \| Lo 22°	98%	68% \| est. 0.04in	45% \| est. 0.2in	17.2 mph

Yesterday 5-Day Wind

Weather Radar Map

Live McHenry, IL weather with minute-by-minute precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Tuesday, as you toggle through each map layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the weather forecast.

Hourly Temperature

The current temperature today is 39^°F. The morning temperature of 34°^F is lowest at 9am with the daytime high of 41°^F at 2pm and a low around 30°^F at 11pm is expected.

Hourly Barometric Pressure

The highest pressure today is 30.11^inHg at 11pm and lowest being 29.45^inHg at 6am.

Hourly Wind Speeds

The fastest wind is reported to be 31.1^mph at 6am, while the slowest is 5.4^mph around 11pm; expect wind gusts peaking 45.3^mph at 6am. View live wind conditions in McHenry

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