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Hottest day yet as heat wave intensifies in the eastern US. Click for the forecast. Chevron right
4th of July forecast: Where will storms disrupt outdoor plans? Chevron right

Prospect Harbor, ME

93°F
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Prospect Harbor

Maine

93°
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Prospect Harbor, ME Weather
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6 PM

89°
RealFeel® 95°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 7%
Chevron down
Partly sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

3:15 PM Thursday - 12:00 AM Monday

RealFeel Shade™93°

Heat Index96°

WindSW 8 mph

Air QualityFair

Max UV Index2.2 (Low)

Wind Gusts16 mph

Humidity56%

Indoor Humidity56% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

86°
RealFeel® 91°
Hot
RealFeel Guide
Hot
90° to 100°
Caution advised. Possible danger of dehydration, heat stroke, heat exhaustion and heat cramps if outside for extended periods, and especially while doing strenuous activities.
LEARN MORE
rain drop 6%
Chevron down
Partly sunny
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

3:15 PM Thursday - 12:00 AM Monday

RealFeel Shade™89°

Heat Index91°

WindSW 7 mph

Air QualityFair

Max UV Index1.3 (Low)

Wind Gusts14 mph

Humidity61%

Indoor Humidity61% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

83°
RealFeel® 87°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 4%
Chevron down
Intermittent clouds
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

3:15 PM Thursday - 12:00 AM Monday

RealFeel Shade™87°

Heat Index87°

WindSW 6 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts12 mph

Humidity66%

Indoor Humidity66% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

80°
RealFeel® 83°
Very Warm
RealFeel Guide
Very Warm
82° to 89°
Older adults, infants, and those with sensitive medical conditions should minimize outdoor activity, especially in the sunshine.
LEARN MORE
rain drop 4%
Chevron down
Intermittent clouds
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

3:15 PM Thursday - 12:00 AM Monday

Heat Index83°

WindWSW 6 mph

Air QualityFair

Wind Gusts12 mph

Humidity72%

Indoor Humidity72% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover74%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

77°
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 4%
Chevron down
Mostly cloudy
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

3:15 PM Thursday - 12:00 AM Monday

WindWSW 6 mph

Air QualityFair

Wind Gusts10 mph

Humidity77%

Indoor Humidity77% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover84%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

74°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 4%
Chevron down
Cloudy
alerts

Heat Advisory

11:00 AM Thursday - 8:00 PM Friday
alerts

Air Quality Alert

3:15 PM Thursday - 12:00 AM Monday

WindWSW 6 mph

Air QualityFair

Wind Gusts9 mph

Humidity84%

Indoor Humidity84% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover90%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Prospect Harbor

AccuWeather's hourly forecast for Prospect Harbor provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 89° with a RealFeel® of 95°, partly sunny with a 7% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

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