Grantsburg, Illinois | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Partly Cloudy
    62°
    Friday 5/17
    Forecast night icon
    62°
    Partly Cloudy
    Hourly
    Night Details
    Partly cloudy. Areas of fog after midnight. Lows in the upper 50s. Calm winds.
  • Forecast day icon
    Saturday
    Mostly Sunny
    80°
    Forecast night icon
    Night
    Mostly Clear
    63°
    Saturday 5/18
    Day
    80°
    Mostly Sunny
    Forecast day icon
    Night
    63°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Areas of fog in the morning. A slight chance of showers and thunderstorms in the afternoon. Highs in the lower 80s. Northeast winds around 5 mph. Chance of rain 20 percent.
    Night Details
    Mostly clear. Lows in the lower 60s. North winds around 5 mph in the evening becoming light and variable.
  • Forecast day icon
    Sunday
    Sunny
    85°
    Forecast night icon
    Night
    Mostly Clear
    65°
    Sunday 5/19
    Day
    85°
    Sunny
    Forecast day icon
    Night
    65°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the mid 80s. North winds around 5 mph becoming southeast in the afternoon.
    Night Details
    Mostly clear. Lows in the mid 60s. Calm winds becoming southeast around 5 mph after midnight.
  • Forecast day icon
    Monday
    Mostly Sunny
    86°
    Forecast night icon
    Night
    Mostly Clear
    67°
    Monday 5/20
    Day
    86°
    Mostly Sunny
    Forecast day icon
    Night
    67°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the upper 80s.
    Night Details
    Mostly clear. Lows in the upper 60s. Highs in the upper 80s.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    87°
    Forecast night icon
    Night
    50% Chance of Storms
    71°
    Tuesday 5/21
    Day
    87°
    Mostly Sunny
    Forecast day icon
    Night
    71°
    50% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly clear. Lows in the upper 60s. Highs in the upper 80s.
    Night Details
    Partly cloudy in the evening then becoming mostly cloudy. A chance of showers and thunderstorms. Lows around 70. Chance of rain 50 percent.
  • Forecast day icon
    Wednesday
    60% Chance of Storms
    82°
    Forecast night icon
    Night
    60% Chance of Storms
    64°
    Wednesday 5/22
    Day
    82°
    60% Chance of Storms
    Forecast day icon
    Night
    64°
    60% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Partly sunny with a chance of thunderstorms. A chance of showers in the morning then showers likely in the afternoon. Highs in the mid 80s. Chance of rain 60 percent.
    Night Details
    Becoming partly cloudy after midnight. A chance of thunderstorms. Showers likely mainly in the evening. Lows in the lower 60s. Chance of rain 60 percent.
  • Forecast day icon
    Thursday
    50% Chance of Storms
    79°
    Forecast night icon
    Night
    40% Chance of Storms
    61°
    Thursday 5/23
    Day
    79°
    50% Chance of Storms
    Forecast day icon
    Night
    61°
    40% Chance of Storms
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny with a chance of showers. A chance of thunderstorms in the afternoon. Highs in the lower 80s. Chance of rain 50 percent.
    Night Details
    Partly cloudy. A chance of showers and thunderstorms. Lows in the lower 60s. Highs in the lower 80s. Chance of rain 40 percent.
  • Forecast day icon
    Friday
    40% Chance of Storms
    78°
    Forecast night icon
    Night
    40% Chance of Rain
    62°
    Friday 5/24
    Day
    78°
    40% Chance of Storms
    Forecast day icon
    Night
    62°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy. A chance of showers and thunderstorms. Lows in the lower 60s. Highs in the lower 80s. Chance of rain 40 percent.
    Night Details
    Clear with a chance of rain. Chance of precipitation 40%. Low temperature around 62F. Dew point will be around 61F with an average humidity of 82%. Winds will be 3 mph from the SE.
  • Forecast day icon
    Saturday
    40% Chance of Rain
    80°
    Forecast night icon
    Night
    50% Chance of Rain
    66°
    Saturday 5/25
    Day
    80°
    40% Chance of Rain
    Forecast day icon
    Night
    66°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Mostly sunny with a chance of rain. Chance of precipitation 40%. High temperature around 80F. Dew point will be around 65F with an average humidity of 76%. Winds will be 4 mph from the S.
    Night Details
    Clear with a chance of rain. Chance of precipitation 45%. Low temperature around 66F. Dew point will be around 65F with an average humidity of 84%. Winds will be 3 mph from the S.
  • Forecast day icon
    Sunday
    50% Chance of Rain
    81°
    Forecast night icon
    Night
    60% Chance of Rain
    66°
    Sunday 5/26
    Day
    81°
    50% Chance of Rain
    Forecast day icon
    Night
    66°
    60% Chance of Rain
    Forecast night icon
    Day Details
    Partly cloudy with a 45% chance for rain and thunderstorms. High temperature around 81F. Dew point will be around 67F with an average humidity of 76%. Winds will be 4 mph from the S.
    Night Details
    Partly cloudy with a 55% chance for rain and thunderstorms. Low temperature around 66F. Dew point will be around 66F with an average humidity of 84%. Winds will be 2 mph from the S.