10-Day Weather Forecast - Grantsburg, IL

Sunny, hot with highs in the upper 90s. Calm winds, becoming southwest around 5 mph in the afternoon. Highest heat index readings heat index readings up to 106 in the afternoon.

Clear. Lows in the mid 70s. Calm winds.

Sunny, hot with highs in the upper 90s. West winds around 5 mph.

Mostly clear. Lows in the lower 70s. Calm winds.

Mostly clear. Highs in the lower 90s.

Mostly clear. Lows in the upper 60s.

Mostly clear. Highs in the lower 90s.

Mostly clear. Lows in the upper 60s.

Mostly clear. Highs in the lower 90s.

Mostly clear. Lows in the mid 70s.

Mostly clear. Highs in the mid 90s.

Mostly clear. Lows in the mid 70s.

Mostly clear. Highs in the mid 90s.

Clear with a 30% chance for rain and thunderstorms. Low temperature around 73F. Dew point will be around 69F with an average humidity of 74%. Winds will be 3 mph from the SW.

Sunny. High temperature around 90F. Dew point will be around 69F with an average humidity of 64%. Winds will be 4 mph from the SW.

Clear. Low temperature around 69F. Dew point will be around 69F with an average humidity of 79%. Winds will be 0 mph from the E.

Sunny. High temperature around 88F. Dew point will be around 68F with an average humidity of 67%. Winds will be 2 mph from the SW.

Clear. Low temperature around 67F. Dew point will be around 66F with an average humidity of 77%. Winds will be 1 mph from the SE.