Get AccuWeather alerts right in your browser!
Enable Notifications
  • Early AM

    Aug 18

    67° Lo
    Mostly cloudy w/ t-storms
    • Stargazing
    • Weather
    • Cloud Cover: 56%
    • Precip: 67%
    • Hours of Precip: 3
    More
  • Today

    Aug 18

    82° /62°
    Showers and a heavier t-storm
    • Poor
    • for stargazing
    • Stargazing Forecast
    • Poor
    • Cloud Cover: 70%
    • Precip: 55%
    • Hours of Precip: 3.5
    More
  • Mon

    Aug 19

    81° /59°
    Partly sunny
    • Good
    • for stargazing
    • Stargazing Forecast
    • Good
    • Cloud Cover: 26%
    • Precip: 4%
    • Hours of Precip: 0
    More
  • Tue

    Aug 20

    87° /67°F
    Partly sunny; warm
    • Poor
    • for stargazing
    • Stargazing Forecast
    • Poor
    • Cloud Cover: 67%
    • Precip: 52%
    • Hours of Precip: 1
  • Wed

    Aug 21

    80° /56°
    Partly sunny
    • Very Good
    • for stargazing
    • Stargazing Forecast
    • Very Good
    • Cloud Cover: 13%
    • Precip: 4%
    • Hours of Precip: 0
    More

Day

87°Hi RealFeel® 92° Precipitation 7%
Partly sunny; warm
  • Winds from the
  • S 6 mph
  • Gusts: 9 mph
  • Max UV Index: 6 (High)
  • Thunderstorms: 24%
  • Precipitation: 0 in
  • Rain: 0 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 0 hrs
  • Hours of Rain: 0 hrs

Night

67°Lo RealFeel® 66° Precipitation 52%
A thunderstorm in parts of the area in the evening; otherwise, partly cloudy; humid
  • Winds from the
  • WNW 5 mph
  • Gusts: 8 mph
  • Max UV Index: N/A
  • Thunderstorms: 60%
  • Precipitation: 0.27 in
  • Rain: 0.27 in
  • Snow: 0 in
  • Ice: 0 in
  • Hours of Precipitation: 1 hrs
  • Hours of Rain: 1 hrs

Temperature History

  Today Normal Record 8/20/2018
High 87° 80° N/A 75°
Low 67° 58° N/A 62°

Sunrise/Sunset

Sunrise
Sunset
Duration

Moonrise/Moonset

Moonrise
Moonset
Duration

Solunar Information for McHenry, IL

Fri, Aug 23
Last
Fri, Aug 30
New
Fri, Sep 6
First
Sat, Sep 14
Full

Tue. Stargazing