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As of 18:49 EDT

Weather in Grand Isle, ME

71°Current weather

Grand Isle, Sunday, 9 August, 18:49

Clear. Feels like 72°. High 79°, low 66°.

Pressure29.80 inHg
Wind6 mph NW
Humidity78%
Visibility6.2 mi
Dew point64°

Two-week outlook for Grand Isle, ME: week one averages a high of 71.9° and week two 67.9°, so week two runs 4.1° cooler than week one. Around 3.2 inches of precipitation are expected over the 14 days, across 7 wet days. The nearest weekend, August 9: 79°, with precipitation.

Week one vs week two

WeekHighLowPrecipitationVs normal
1st (August 9 – August 15)71.9°55.3°1.3 in / 3 d—
2nd (August 16 – August 22)67.9°51.1°1.9 in / 4 d—

Weekend weather

Sun, August 9
Rain
79°66°
0.58 in
Sat, August 15
Partly cloudy
69°48°
no precip.
Sun, August 16
Light rain
72°52°
0.18 in
Sat, August 22
Overcast
66°44°
no precip.
Mon, 1083° / 61°0.02Light rain
83 °Light rain

Grand Isle, Monday, 10 August

Light rain. High 83°, low 61°.

Pressure29.88 inHg
Wind7.9 mph W
Humidity43%
Visibility6.2 mi
Dew point53°
Tue, 1171° / 56°0.28Rain
71 °Rain

Grand Isle, Tuesday, 11 August

Rain. High 71°, low 56°.

Pressure29.68 inHg
Wind6.5 mph W
Humidity93%
Visibility4.8 mi
Dew point64°
Wed, 1273° / 52°0Clear
73 °Clear

Grand Isle, Wednesday, 12 August

Clear. High 73°, low 52°.

Pressure29.68 inHg
Wind9.8 mph NW
Humidity47%
Visibility6.2 mi
Dew point52°
Thu, 1364° / 53°0.42Rain
64 °Rain

Grand Isle, Thursday, 13 August

Rain. High 64°, low 53°.

Pressure29.65 inHg
Wind3.9 mph W
Humidity97%
Visibility6.2 mi
Dew point57°
Fri, 1465° / 52°0Clear
65 °Clear

Grand Isle, Friday, 14 August

Clear. High 65°, low 52°.

Pressure29.85 inHg
Wind14.2 mph NW
Humidity50%
Visibility—
Dew point44°
Sat, 1569° / 48°0Partly cloudy
69 °Partly cloudy

Grand Isle, Saturday, 15 August

Partly cloudy. High 69°, low 48°.

Pressure30.03 inHg
Wind11.3 mph NW
Humidity48%
Visibility—
Dew point46°
Sun, 1672° / 52°0.18Light rain
72 °Light rain

Grand Isle, Sunday, 16 August

Light rain. High 72°, low 52°.

Pressure29.97 inHg
Wind5.8 mph S
Humidity53%
Visibility—
Dew point50°
Mon, 1763° / 51°0.33Light rain
63 °Light rain

Grand Isle, Monday, 17 August

Light rain. High 63°, low 51°.

Pressure29.88 inHg
Wind7.7 mph N
Humidity97%
Visibility—
Dew point55°
Tue, 1875° / 49°0Clear
75 °Clear

Grand Isle, Tuesday, 18 August

Clear. High 75°, low 49°.

Pressure30.00 inHg
Wind7.5 mph NW
Humidity55%
Visibility—
Dew point51°
Wed, 1964° / 55°0.46Rain
64 °Rain

Grand Isle, Wednesday, 19 August

Rain. High 64°, low 55°.

Pressure29.77 inHg
Wind11 mph SE
Humidity97%
Visibility—
Dew point56°
Thu, 2072° / 55°0Partly cloudy
72 °Partly cloudy

Grand Isle, Thursday, 20 August

Partly cloudy. High 72°, low 55°.

Pressure29.83 inHg
Wind11.2 mph NW
Humidity53%
Visibility—
Dew point49°
Fri, 2163° / 51°0.89Rain
63 °Rain

Grand Isle, Friday, 21 August

Rain. High 63°, low 51°.

Pressure29.68 inHg
Wind6 mph NW
Humidity99%
Visibility—
Dew point58°
Sat, 2266° / 44°0Overcast
66 °Overcast

Grand Isle, Saturday, 22 August

Overcast. High 66°, low 44°.

Pressure29.97 inHg
Wind7 mph NW
Humidity53%
Visibility—
Dew point40°

About this forecast

Can I plan a trip on a 2-week forecast?

Week one is solid for planning — accuracy is high. Week two shows the trend: go by the averages and the comparison with normal, and check the details closer to the date.

What does the "Vs normal" column mean?

It is the gap between the forecast and the climate normal for those same dates in Grand Isle, ME, computed over 60 years. A positive value means the week runs warmer than usual.

Why are weekends shown separately?

Saturday and Sunday plans are what people check most, so we give them their own cards with temperature and precipitation.