10-Day Weather Forecast - Grand Isle, ME

Patchy fog this morning. Partly sunny this morning then mostly cloudy with isolated snow showers this afternoon. Highs in the lower 20s. Southwest winds around 5 mph. Chance of snow 20 percent.

Mostly cloudy with a 40 percent chance of snow showers. Little or no snow accumulation. Lows around 6 above. South winds around 5 mph increasing to southwest 10 to 15 mph with gusts up to 25 mph after midnight.

Mostly sunny. Highs around 13. Temperature falling to around 3 above in the afternoon. Southwest winds 15 to 20 mph with gusts up to 35 mph.

Partly cloudy. Much colder with lows around 9 below. West winds 10 to 15 mph with gusts up to 30 mph. Wind chill values as low as 23 below.

Mostly sunny in the morning then becoming mostly cloudy. Highs around 12. Southwest winds 5 to 10 mph. Wind chill values as low as 25 below in the morning.

Mostly cloudy. Snow likely after midnight. Light snow accumulation possible. Not as cool. Near steady temperature around 10 above. Temperature rising to around 10 above after midnight. Chance of snow 60 percent.

Mostly cloudy with a 50 percent chance of snow. Not as cool with highs in the mid 20s.

Mostly cloudy in the evening then becoming partly cloudy. Lows 5 to 10 above.

Mostly sunny. Cooler with highs around 10 above. Temperature falling to around 5 above in the afternoon.

Partly cloudy. Much colder with lows around 10 below. Wind chill values as low as 30 below.

Mostly sunny. Colder with highs around zero. Wind chill values as low as 35 below.

Partly cloudy. Cold with lows around 20 below. Wind chill values as low as 40 below.

Mostly sunny. Cold with highs around zero. Wind chill values as low as 40 below.

Mostly cloudy. Low temperature around -11F. Dew point will be around -14F with an average humidity of 76%. Winds will be 11 mph from the W.

Cloudy. High temperature around -0F. Dew point will be around -11F with an average humidity of 74%. Winds will be 11 mph from the W.

Cloudy. Low temperature around -6F. Dew point will be around -10F with an average humidity of 76%. Winds will be 12 mph from the W.

Cloudy. High temperature around 5F. Dew point will be around -6F with an average humidity of 74%. Winds will be 13 mph from the W.

Cloudy. Low temperature around -5F. Dew point will be around -7F with an average humidity of 78%. Winds will be 10 mph from the W.