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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

Belfast, ME

82°F
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Belfast

Maine

82°
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Belfast, ME Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

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9 AM

79°
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 11%
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Partly sunny

RealFeel Shade™85°

Heat Index80°

WindWSW 6 mph

Air QualityFair

Max UV Index3.4 (Moderate)

Wind Gusts9 mph

Humidity87%

Indoor Humidity87% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover47%

Visibility10 mi

Cloud Ceiling30000 ft

10 AM

81°
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 11%
Chevron down
Intermittent clouds

RealFeel Shade™88°

Heat Index87°

WindW 7 mph

Air QualityFair

Max UV Index4.7 (Moderate)

Wind Gusts12 mph

Humidity83%

Indoor Humidity83% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover50%

Visibility10 mi

Cloud Ceiling30000 ft

11 AM

84°
RealFeel® 98°
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 11%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™90°

Heat Index91°

WindW 7 mph

Air QualityFair

Max UV Index6.9 (High)

Wind Gusts14 mph

Humidity73%

Indoor Humidity73% (Extremely Humid)

Dew Point75° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover43%

Visibility10 mi

Cloud Ceiling30000 ft

12 PM

88°
RealFeel® 103°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 11%
Chevron down
Partly sunny
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™94°

Heat Index97°

WindW 8 mph

Air QualityFair

Max UV Index8.8 (Very High)

Wind Gusts15 mph

Humidity63%

Indoor Humidity63% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover46%

Visibility10 mi

Cloud Ceiling30000 ft

1 PM

93°
RealFeel® 107°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 11%
Chevron down
Intermittent clouds
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™98°

Heat Index102°

WindW 8 mph

Air QualityFair

Max UV Index9.6 (Very High)

Wind Gusts16 mph

Humidity53%

Indoor Humidity53% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover55%

Visibility10 mi

Cloud Ceiling30000 ft

2 PM

95°
RealFeel® 108°
Dangerous Heat
RealFeel Guide
Dangerous Heat
108° to 115°
Caution advised. 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 12%
Chevron down
Intermittent clouds
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™100°

Heat Index104°

WindWSW 8 mph

Air QualityFair

Max UV Index8.2 (Very High)

Wind Gusts17 mph

Humidity49%

Indoor Humidity49% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

3 PM

94°
RealFeel® 105°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 12%
Chevron down
Intermittent clouds
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™99°

Heat Index103°

WindWSW 8 mph

Air QualityFair

Max UV Index6.1 (High)

Wind Gusts17 mph

Humidity50%

Indoor Humidity50% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover68%

Visibility10 mi

Cloud Ceiling30000 ft

4 PM

93°
RealFeel® 103°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 16%
Chevron down
Intermittent clouds
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™98°

Heat Index102°

WindWSW 7 mph

Air QualityFair

Max UV Index4.2 (Moderate)

Wind Gusts18 mph

Humidity51%

Indoor Humidity51% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover67%

Visibility10 mi

Cloud Ceiling30000 ft

5 PM

92°
RealFeel® 101°
Very Hot
RealFeel Guide
Very Hot
101° to 107°
Caution advised. 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 43%
Chevron down
Intermittent clouds
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™97°

Heat Index100°

WindWSW 7 mph

Air QualityFair

Max UV Index3.1 (Moderate)

Wind Gusts17 mph

Humidity54%

Indoor Humidity54% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

6 PM

91°
RealFeel® 99°
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 47%
Chevron down
Intermittent clouds
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™96°

Heat Index99°

WindWSW 7 mph

Air QualityFair

Max UV Index2.1 (Low)

Wind Gusts16 mph

Humidity56%

Indoor Humidity56% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™7 (Bright)

Cloud Cover63%

Visibility10 mi

Cloud Ceiling30000 ft

7 PM

87°
RealFeel® 93°
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 51%
Chevron down
Mostly cloudy w/ t-storms
alerts

Extreme Heat Warning

11:00 AM Thursday - 8:00 PM Thursday

RealFeel Shade™93°

Heat Index98°

WindWSW 6 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts14 mph

Humidity70%

Indoor Humidity70% (Extremely Humid)

Dew Point76° F

AccuLumen Brightness Index™6 (Medium)

Cloud Cover63%

Rain0.10 in

Visibility4 mi

Cloud Ceiling2000 ft

8 PM

85°
RealFeel® 92°
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 15%
Chevron down
Intermittent clouds

RealFeel Shade™92°

Heat Index92°

WindWSW 6 mph

Air QualityFair

Max UV Index0.5 (Low)

Wind Gusts13 mph

Humidity68%

Indoor Humidity68% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™2 (Dark)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

9 PM

83°
RealFeel® 89°
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 11%
Chevron down
Intermittent clouds

Heat Index89°

WindW 6 mph

Air QualityFair

Wind Gusts12 mph

Humidity74%

Indoor Humidity74% (Extremely Humid)

Dew Point74° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover68%

Visibility10 mi

Cloud Ceiling30000 ft

10 PM

81°
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 11%
Chevron down
Intermittent clouds

Heat Index85°

WindW 6 mph

Air QualityFair

Wind Gusts10 mph

Humidity76%

Indoor Humidity76% (Extremely Humid)

Dew Point73° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover69%

Visibility10 mi

Cloud Ceiling30000 ft

11 PM

78°
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 11%
Chevron down
Intermittent clouds

Heat Index80°

WindW 6 mph

Air QualityFair

Wind Gusts9 mph

Humidity80%

Indoor Humidity80% (Extremely Humid)

Dew Point72° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover65%

Visibility10 mi

Cloud Ceiling30000 ft

Hourly Weather Forecast for Belfast

AccuWeather's hourly forecast for Belfast provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 79° with a RealFeel® of 91°, partly sunny with a 11% 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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