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Grand Isle, ME

89°F
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Grand Isle, ME Weather
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Winter Center
Today Hourly

Daily

 Radar MinuteCast Monthly Air Quality Health & Activities
2
Air Quality Alert

July 16 - August 29

Wed 7/16

89° /65°
8%
Sunny and very warm; possible danger of dehydration and heatstroke while doing strenuous activities
alerts

Air Quality Alert

9:39 AM Tuesday - 11:00 PM Wednesday

RealFeel®96°

RealFeel Shade™88°

Max UV Index9 (Very High)

WindSSW 8 mph

Thu 7/17

87° /59°
70%
Very warm and humid with a thick cloud cover; a thunderstorm in the afternoon

RealFeel®90°

RealFeel Shade™88°

Max UV Index3 (Moderate)

WindSSE 9 mph

Fri 7/18

76° /52°
1%
Not as warm with clouds yielding to sun; breezy in the morning, then becoming less humid

RealFeel®76°

RealFeel Shade™73°

Max UV Index8 (Very High)

WindWNW 13 mph

Sat 7/19

78° /56°
8%
Pleasant with times of clouds and sun

RealFeel®81°

RealFeel Shade™74°

Max UV Index8 (Very High)

WindWSW 8 mph

Sun 7/20

72° /51°
80%
Cloudy with a thunderstorm

RealFeel®72°

RealFeel Shade™72°

Max UV Index2 (Low)

WindSSE 2 mph

Mon 7/21

69° /48°
10%
Sunny to partly cloudy

RealFeel®73°

RealFeel Shade™65°

Max UV Index8 (Very High)

WindNNW 13 mph

Tue 7/22

76° /53°
2%
Pleasant with clouds and sunshine

RealFeel®79°

RealFeel Shade™74°

Max UV Index8 (Very High)

WindWNW 7 mph

Wed 7/23

79° /57°
20%
Overcast

RealFeel®77°

RealFeel Shade™76°

Max UV Index4 (Moderate)

WindSW 9 mph

Thu 7/24

77° /56°
55%
A couple of showers in the morning; otherwise, times of sun and clouds

RealFeel®81°

RealFeel Shade™76°

Max UV Index8 (Very High)

WindWSW 7 mph

Fri 7/25

78° /57°
4%
Humid with sunshine and a few clouds

RealFeel®86°

RealFeel Shade™81°

Max UV Index8 (Very High)

WindWNW 7 mph

Sat 7/26

75° /52°
62%
Mostly cloudy; a shower in spots in the morning followed by a little rain in the afternoon

RealFeel®74°

RealFeel Shade™72°

Max UV Index7 (High)

WindW 9 mph

Sun 7/27

72° /52°
59%
Mainly cloudy; a morning shower in spots followed by a little rain in the afternoon

RealFeel®72°

RealFeel Shade™69°

Max UV Index4 (Moderate)

WindWNW 10 mph

Mon 7/28

74° /56°
55%
A couple of morning showers; otherwise, sunshine and some clouds

RealFeel®78°

RealFeel Shade™72°

Max UV Index7 (High)

WindNW 7 mph

Tue 7/29

73° /55°
38%
Mostly cloudy with a shower in places

RealFeel®72°

RealFeel Shade™72°

Max UV Index3 (Moderate)

WindSE 6 mph

Wed 7/30

72° /58°
67%
Mostly cloudy; a passing shower in the morning followed by periods of rain in the afternoon

RealFeel®72°

RealFeel Shade™71°

Max UV Index3 (Moderate)

WindSW 6 mph

Thu 7/31

74° /55°
20%
Mostly sunny

RealFeel®83°

RealFeel Shade™73°

Max UV Index8 (Very High)

WindNW 4 mph

Fri 8/1

73° /58°
60%
Mostly cloudy with a little rain in the afternoon

RealFeel®73°

RealFeel Shade™71°

Max UV Index5 (Moderate)

WindS 8 mph

Sat 8/2

77° /55°
65%
Mostly cloudy; a couple of morning showers and a thunderstorm followed by a little rain in the afternoon

RealFeel®76°

RealFeel Shade™74°

Max UV Index2 (Low)

WindW 10 mph

Sun 8/3

71° /51°
25%
Turning cloudy

RealFeel®70°

RealFeel Shade™68°

Max UV Index7 (High)

WindWNW 12 mph

Mon 8/4

70° /52°
20%
Some sun, then increasing clouds

RealFeel®73°

RealFeel Shade™67°

Max UV Index7 (High)

WindNW 8 mph

Tue 8/5

71° /52°
20%
Mostly sunny

RealFeel®78°

RealFeel Shade™68°

Max UV Index7 (High)

WindNW 5 mph

Wed 8/6

71° /51°
20%
Mostly sunny

RealFeel®79°

RealFeel Shade™70°

Max UV Index7 (High)

WindN 2 mph

Thu 8/7

72° /54°
25%
Considerable cloudiness

RealFeel®73°

RealFeel Shade™73°

Max UV Index3 (Moderate)

WindNNW 2 mph

Fri 8/8

75° /56°
20%
Sunshine and some clouds

RealFeel®82°

RealFeel Shade™72°

Max UV Index7 (High)

WindSW 5 mph

Sat 8/9

77° /57°
25%
Times of clouds and sun

RealFeel®78°

RealFeel Shade™75°

Max UV Index3 (Moderate)

WindN 5 mph

Sun 8/10

73° /57°
25%
Mostly cloudy

RealFeel®72°

RealFeel Shade™72°

Max UV Index3 (Moderate)

WindESE 6 mph

Mon 8/11

71° /58°
60%
Cloudy; a shower in spots in the morning followed by a little rain in the afternoon

RealFeel®70°

RealFeel Shade™70°

Max UV Index2 (Low)

WindE 5 mph

Tue 8/12

71° /58°
58%
A couple of morning showers; otherwise, mostly cloudy

RealFeel®73°

RealFeel Shade™72°

Max UV Index2 (Low)

WindNW 2 mph

Wed 8/13

77° /57°
20%
Sunny

RealFeel®85°

RealFeel Shade™75°

Max UV Index7 (High)

WindSSW 4 mph

Thu 8/14

78° /58°
10%
Mostly sunny

RealFeel®85°

RealFeel Shade™77°

Max UV Index7 (High)

WindSW 5 mph

Fri 8/15

78° /58°
64%
Becoming cloudy and humid; a couple of afternoon showers and a thunderstorm

RealFeel®84°

RealFeel Shade™78°

Max UV Index7 (High)

WindSSW 7 mph

Sat 8/16

77° /57°
56%
A touch of rain in the morning; otherwise, humid with considerable cloudiness

RealFeel®81°

RealFeel Shade™78°

Max UV Index3 (Moderate)

WindSW 6 mph

Sun 8/17

77° /56°
25%
Mostly cloudy and less humid

RealFeel®75°

RealFeel Shade™74°

Max UV Index3 (Moderate)

WindWNW 10 mph

Mon 8/18

69° /56°
10%
Mostly sunny

RealFeel®73°

RealFeel Shade™67°

Max UV Index6 (High)

WindWNW 8 mph

Tue 8/19

75° /57°
25%
Mostly cloudy

RealFeel®76°

RealFeel Shade™73°

Max UV Index2 (Low)

WindWSW 6 mph

Wed 8/20

77° /57°
20%
Plenty of sunshine

RealFeel®81°

RealFeel Shade™76°

Max UV Index6 (High)

WindSW 6 mph

Thu 8/21

78° /56°
20%
Partly sunny and humid

RealFeel®85°

RealFeel Shade™78°

Max UV Index6 (High)

WindSSW 5 mph

Fri 8/22

77° /57°
70%
Periods of rain in the morning; otherwise, cloudy and humid

RealFeel®81°

RealFeel Shade™78°

Max UV Index2 (Low)

WindW 4 mph

Sat 8/23

76° /55°
10%
Brilliant sunshine and less humid

RealFeel®78°

RealFeel Shade™74°

Max UV Index6 (High)

WindNNW 8 mph

Sun 8/24

75° /55°
25%
Mostly cloudy

RealFeel®75°

RealFeel Shade™75°

Max UV Index2 (Low)

WindE 4 mph

Mon 8/25

71° /54°
25%
A blend of sunshine and clouds

RealFeel®72°

RealFeel Shade™71°

Max UV Index3 (Moderate)

WindSE 5 mph

Tue 8/26

72° /53°
10%
Sunshine

RealFeel®78°

RealFeel Shade™70°

Max UV Index6 (High)

WindWNW 2 mph

Wed 8/27

75° /54°
5%
Plenty of sun

RealFeel®80°

RealFeel Shade™73°

Max UV Index6 (High)

WindSW 4 mph

Thu 8/28

74° /54°
20%
Mostly sunny

RealFeel®79°

RealFeel Shade™73°

Max UV Index5 (Moderate)

WindSW 5 mph

Fri 8/29

66° /45°
70%
Cloudy; rain in the morning followed by showers and thunderstorms in the afternoon

RealFeel®63°

RealFeel Shade™63°

Max UV Index1 (Low)

WindESE 13 mph

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World North America United States Maine Grand Isle

Weather Near Grand Isle:

  • Caribou, ME
  • Houlton, ME
  • Presque Isle, ME
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