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Current weather in Belfast is clear sky.

Where can I find the hourly weather forecast for Belfast?

This page shows hourly weather forecast for Belfast, including temperature, wind, precipitation, humidity and cloud cover.

Is the weather forecast for Belfast updated regularly?

Weather data for Belfast is updated regularly with the latest available observations and forecasts.

Now · 1:56 PM

Belfast Weather & Hourly Forecast

United States · Maine · 04915

74°F

Sunny

Feels like: 73°F

💧 Humidity 50% 🌡 Pressure 30.12 inHg 💨 Wind 7 mph 👁 Visibility 6.2 mi ☁ Clouds 0% ☀️ UV index 6.4 · High 🌅 Sunrise 5:55 AM 🌇 Sunset 7:19 PM

Hourly Forecast for Belfast

Today

2:00 PM

Sunny

74° 💧 None 💨 7 mph H 50%30.12 inHg

5:00 PM

Sunny

75° 💧 None 💨 2 mph H 44%30.09 inHg

8:00 PM

Clear night

65° 💧 None 💨 4 mph H 76%30.12 inHg

11:00 PM

Mostly cloudy night

62° 💧 None 💨 4 mph H 80%30.12 inHg

Tomorrow

2:00 AM

Mostly cloudy night

60° 💧 None 💨 5 mph H 87%30.09 inHg

5:00 AM

Mostly clear night

60° 💧 None 💨 5 mph H 94%30.06 inHg

8:00 AM

Partly cloudy

67° 💧 None 💨 6 mph H 66%30.06 inHg

11:00 AM

Mostly cloudy

78° 💧 None 💨 8 mph H 44%30.00 inHg

2:00 PM

Mostly cloudy

75° 💧 0.03 in 💨 7 mph H 48%29.97 inHg

5:00 PM

Light rain

69° 💧 0.00 in 💨 4 mph H 94%29.97 inHg

8:00 PM

Overcast night

67° 💧 0.06 in 💨 4 mph H 93%29.97 inHg

11:00 PM

Moderate rain

67° 💧 0.07 in 💨 3 mph H 98%29.97 inHg

Monday

2:00 AM

Overcast night

62° 💧 None 💨 4 mph H 97%29.97 inHg

5:00 AM

Clear night

56° 💧 None 💨 5 mph H 96%30.03 inHg

8:00 AM

Sunny

59° 💧 None 💨 5 mph H 90%30.09 inHg

11:00 AM

Sunny

69° 💧 None 💨 6 mph H 49%30.09 inHg

Today

2:00 PM

Sunny

74° 💧 None 💨 7 mph H 50%30.12 inHg

3:00 PM

Sunny

75° 💧 None 💨 5 mph H 48%30.12 inHg

4:00 PM

Sunny

75° 💧 None 💨 3 mph H 45%30.12 inHg

5:00 PM

Sunny

75° 💧 None 💨 2 mph H 44%30.09 inHg

6:00 PM

Sunny

73° 💧 None 💨 5 mph H 56%30.09 inHg

7:00 PM

Sunny

68° 💧 None 💨 4 mph H 75%30.09 inHg

8:00 PM

Clear night

65° 💧 None 💨 4 mph H 76%30.12 inHg

9:00 PM

Partly cloudy night

64° 💧 None 💨 4 mph H 75%30.12 inHg

10:00 PM

Mostly cloudy night

62° 💧 None 💨 5 mph H 76%30.12 inHg

11:00 PM

Mostly cloudy night

62° 💧 None 💨 4 mph H 80%30.12 inHg

Tomorrow

12:00 AM

Partly cloudy night

62° 💧 None 💨 4 mph H 80%30.12 inHg

1:00 AM

Mostly cloudy night

61° 💧 None 💨 4 mph H 81%30.09 inHg

2:00 AM

Mostly cloudy night

60° 💧 None 💨 5 mph H 87%30.09 inHg

3:00 AM

Mostly clear night

60° 💧 None 💨 5 mph H 95%30.09 inHg

4:00 AM

Mostly clear night

60° 💧 None 💨 5 mph H 95%30.06 inHg

5:00 AM

Mostly clear night

60° 💧 None 💨 5 mph H 94%30.06 inHg

6:00 AM

Sunny

60° 💧 None 💨 5 mph H 90%30.06 inHg

7:00 AM

Partly cloudy

63° 💧 None 💨 4 mph H 81%30.06 inHg

8:00 AM

Partly cloudy

67° 💧 None 💨 6 mph H 66%30.06 inHg

9:00 AM

Partly cloudy

72° 💧 None 💨 7 mph H 54%30.03 inHg

10:00 AM

Mostly cloudy

75° 💧 None 💨 7 mph H 49%30.03 inHg

11:00 AM

Mostly cloudy

78° 💧 None 💨 8 mph H 44%30.00 inHg

12:00 PM

Mostly cloudy

79° 💧 None 💨 9 mph H 41%30.00 inHg

1:00 PM

Mostly cloudy

80° 💧 None 💨 8 mph H 40%29.97 inHg

2:00 PM

Mostly cloudy

75° 💧 None 💨 7 mph H 48%29.97 inHg

3:00 PM

Overcast

74° 💧 None 💨 9 mph H 66%29.97 inHg

4:00 PM

Light rain

72° 💧 0.03 in 💨 4 mph H 93%29.97 inHg

5:00 PM

Light rain

69° 💧 0.00 in 💨 4 mph H 94%29.97 inHg

6:00 PM

Overcast

68° 💧 None 💨 1 mph H 94%29.97 inHg

7:00 PM

Overcast

68° 💧 None 💨 2 mph H 94%29.94 inHg

8:00 PM

Overcast night

67° 💧 None 💨 4 mph H 93%29.97 inHg

9:00 PM

Light rain

67° 💧 0.02 in 💨 2 mph H 94%29.97 inHg

10:00 PM

Light rain

67° 💧 0.04 in 💨 4 mph H 96%29.97 inHg

11:00 PM

Moderate rain

67° 💧 0.06 in 💨 3 mph H 98%29.97 inHg

Monday

12:00 AM

Light rain

65° 💧 0.01 in 💨 4 mph H 98%29.97 inHg

1:00 AM

Overcast night

63° 💧 None 💨 6 mph H 96%29.97 inHg

2:00 AM

Overcast night

62° 💧 None 💨 4 mph H 97%29.97 inHg

3:00 AM

Clear night

58° 💧 None 💨 5 mph H 96%30.00 inHg

4:00 AM

Clear night

57° 💧 None 💨 5 mph H 96%30.00 inHg

5:00 AM

Clear night

56° 💧 None 💨 5 mph H 96%30.03 inHg

6:00 AM

Sunny

55° 💧 None 💨 5 mph H 96%30.03 inHg

7:00 AM

Sunny

56° 💧 None 💨 4 mph H 95%30.06 inHg

8:00 AM

Sunny

59° 💧 None 💨 5 mph H 90%30.09 inHg

9:00 AM

Sunny

62° 💧 None 💨 5 mph H 78%30.09 inHg

10:00 AM

Sunny

66° 💧 None 💨 6 mph H 57%30.09 inHg

11:00 AM

Sunny

69° 💧 None 💨 6 mph H 49%30.09 inHg

12:00 PM

Sunny

71° 💧 None 💨 6 mph H 44%30.06 inHg

1:00 PM

Sunny

73° 💧 None 💨 5 mph H 42%30.06 inHg

2:00 PM

Sunny

74° 💧 None 💨 4 mph H 41%30.06 inHg

3:00 PM

Sunny

75° 💧 None 💨 3 mph H 40%30.03 inHg

4:00 PM

Mostly cloudy

74° 💧 None 💨 2 mph H 42%30.03 inHg

5:00 PM

Partly cloudy

72° 💧 None 💨 2 mph H 48%30.03 inHg

6:00 PM

Partly cloudy

67° 💧 None 💨 6 mph H 67%30.03 inHg

7:00 PM

Partly cloudy

61° 💧 None 💨 6 mph H 82%30.03 inHg

8:00 PM

Mostly clear night

58° 💧 None 💨 5 mph H 89%30.06 inHg

9:00 PM

Clear night

57° 💧 None 💨 3 mph H 93%30.09 inHg

10:00 PM

Clear night

56° 💧 None 💨 3 mph H 94%30.09 inHg

11:00 PM

Clear night

56° 💧 None 💨 3 mph H 94%30.09 inHg

Tuesday

12:00 AM

Mostly clear night

56° 💧 None 💨 4 mph H 95%30.09 inHg

1:00 AM

Partly cloudy night

56° 💧 None 💨 3 mph H 96%30.09 inHg

2:00 AM

Partly cloudy night

56° 💧 None 💨 3 mph H 96%30.09 inHg

3:00 AM

Overcast night

55° 💧 None 💨 3 mph H 96%30.09 inHg

4:00 AM

Overcast night

55° 💧 None 💨 3 mph H 96%30.09 inHg

5:00 AM

Overcast night

54° 💧 None 💨 3 mph H 95%30.09 inHg

6:00 AM

Overcast

54° 💧 None 💨 3 mph H 94%30.09 inHg

7:00 AM

Overcast

55° 💧 None 💨 3 mph H 90%30.09 inHg

8:00 AM

Overcast

59° 💧 None 💨 2 mph H 82%30.09 inHg

9:00 AM

Overcast

61° 💧 None 💨 2 mph H 78%30.09 inHg

10:00 AM

Overcast

63° 💧 None 💨 3 mph H 78%30.09 inHg

11:00 AM

Overcast

65° 💧 None 💨 4 mph H 78%30.09 inHg

12:00 PM

Overcast

64° 💧 None 💨 5 mph H 82%30.06 inHg

1:00 PM

Overcast

62° 💧 None 💨 6 mph H 88%30.06 inHg

2:00 PM

Overcast

61° 💧 None 💨 6 mph H 93%30.06 inHg

3:00 PM

Overcast

61° 💧 None 💨 7 mph H 92%30.06 inHg

4:00 PM

Light rain

62° 💧 0.01 in 💨 9 mph H 91%30.06 inHg

5:00 PM

Moderate rain

60° 💧 0.04 in 💨 7 mph H 97%30.06 inHg

6:00 PM

Moderate rain

59° 💧 0.08 in 💨 7 mph H 99%30.06 inHg

7:00 PM

Moderate rain

59° 💧 0.09 in 💨 7 mph H 99%30.09 inHg

8:00 PM

Moderate rain

58° 💧 0.06 in 💨 6 mph H 98%30.09 inHg

9:00 PM

Moderate rain

58° 💧 0.04 in 💨 5 mph H 99%30.12 inHg

10:00 PM

Light rain

58° 💧 0.03 in 💨 5 mph H 99%30.12 inHg

11:00 PM

Light rain

57° 💧 0.01 in 💨 4 mph H 98%30.12 inHg

Wednesday

12:00 AM

Light rain

57° 💧 0.00 in 💨 3 mph H 98%30.12 inHg

1:00 AM

Light rain

57° 💧 0.02 in 💨 3 mph H 98%30.12 inHg

2:00 AM

Light rain

57° 💧 0.02 in 💨 3 mph H 98%30.12 inHg

3:00 AM

Light rain

57° 💧 0.01 in 💨 2 mph H 98%30.12 inHg

4:00 AM

Overcast night

57° 💧 None 💨 2 mph H 98%30.12 inHg

5:00 AM

Overcast night

57° 💧 None 💨 2 mph H 97%30.15 inHg

6:00 AM

Overcast night

57° 💧 None 💨 2 mph H 97%30.15 inHg

7:00 AM

Overcast

57° 💧 None 💨 2 mph H 97%30.15 inHg

8:00 AM

Overcast

57° 💧 None 💨 2 mph H 97%30.18 inHg

9:00 AM

Overcast

58° 💧 None 💨 2 mph H 96%30.15 inHg

10:00 AM

Overcast

59° 💧 None 💨 1 mph H 94%30.18 inHg

11:00 AM

Overcast

60° 💧 None 💨 2 mph H 92%30.18 inHg

12:00 PM

Overcast

61° 💧 None 💨 0 mph H 87%30.15 inHg

1:00 PM

Overcast

62° 💧 None 💨 2 mph H 84%30.15 inHg

In Belfast and, more broadly, across the state of Maine: The rest of the day will feature clear skies and mild to warm temperatures, ranging from 62 to 75 degrees Fahrenheit. Winds will be light, coming from the northwest at around 8 mph, with occasional gusts reaching 11 mph. No precipitation is expected, so it should remain dry throughout the afternoon. Expect a pleasant and comfortable evening with clear conditions and gentle breezes.

15-Day Weather Outlook for Belfast

TomorrowTomorrow

Moderate rain 80°/60° 💧 0.15 in 💨 9 mph

Monday, Aug 31Mon Aug 31

Light rain 75°/55° 💧 0.01 in 💨 6 mph

Tuesday, Sep 1Tue Sep 1

Moderate rain 65°/54° 💧 0.38 in 💨 7 mph

Wednesday, Sep 2Wed Sep 2

Light rain 66°/56° 💧 0.07 in 💨 5 mph

Thursday, Sep 3Thu Sep 3

Moderate rain 58°/55° 💧 0.40 in 💨 6 mph

Friday, Sep 4Fri Sep 4

Light rain 63°/56° 💧 0.03 in 💨 4 mph

Saturday, Sep 5Sat Sep 5

Moderate rain 69°/57° 💧 0.30 in 💨 5 mph

Sunday, Sep 6Sun Sep 6

Sunny 73°/54° 💧 None 💨 11 mph

Monday, Sep 7Mon Sep 7

Sunny 67°/52° 💧 None 💨 10 mph

Tuesday, Sep 8Tue Sep 8

Light rain 70°/60° 💧 0.03 in 💨 9 mph

Wednesday, Sep 9Wed Sep 9

Light rain 94°/67° 💧 0.02 in 💨 10 mph

Thursday, Sep 10Thu Sep 10

Light rain 88°/68° 💧 0.01 in 💨 13 mph

Friday, Sep 11Fri Sep 11

Sunny 71°/54° 💧 None 💨 14 mph

Saturday, Sep 12Sat Sep 12

Sunny 74°/51° 💧 None 💨 9 mph

Sunday, Sep 13Sun Sep 13

Light rain 66°/49° 💧 0.00 in 💨 13 mph

TEMPERATURE OUTLOOK

Temperature & Weather Trends in Belfast

Vertical axis: °F · Color based on temperature

AIR QUALITY FORECAST

Air Quality Forecast for Belfast

Hourly forecast · Updated every 2 hours

Fair

Nearest forecast value 2:00 PM

PM2.5 Fine particles Good 2,0µg/m³

Microscopic particles that can penetrate deep into the lungs. Elevated concentrations can especially affect children, older adults and people with respiratory conditions.

PM10 Particulate matter Good 2,2µg/m³

Includes dust, pollen and other airborne particles. High concentrations may irritate the respiratory system.

O₃ Ozone Fair 76,4µg/m³

Ground-level ozone can irritate the eyes and respiratory system when concentrations are elevated.

NO₂ Nitrogen dioxide Good 0,7µg/m³

A gas emitted mainly by traffic and some industrial activity. High exposure can affect respiratory health.

Air quality is acceptable for most people.

UV & HEALTH

UV, Sun & Health Outlook in Belfast

Maximum daily UV Today, tomorrow and the following day show the maximum UV index forecast for each day.

0–2 Low 3–5 Moderate 6–7 High 8–10 Very high 11+ Extreme

Today UV 6,4High 🙂Fair

Tomorrow UV 5,8Moderate 🙂Fair

Monday UV 5,7Moderate 🙂Fair

Tuesday UV 6,1High 🙂Fair

Wednesday UV 4,0Moderate 🙂Fair

Thursday UV 5,0Moderate —Unavailable

Friday UV 6,0High —Unavailable

Hourly UV index today

2:00 PMUV 5,6 3:00 PMUV 4,2 4:00 PMUV 2,5 5:00 PMUV 1,1 6:00 PMUV 0,4 7:00 PMUV 0,0

Today's weather health advice Open today's recommendations.

Strong UV exposure

Protect exposed skin with SPF 30+ sunscreen, wear sunglasses, and try to limit direct midday sun.

Acceptable air quality

Air quality is acceptable for most people. Very sensitive people may want to reduce prolonged exertion.

Comfortable temperature conditions

Temperatures should feel comfortable for most people, with no particular heat or cold precautions needed.

Good conditions for outdoor activities

Outdoor activities can generally be enjoyed normally, with sun protection adjusted to the UV level.

WIND OUTLOOK

Hourly Wind Forecast for Belfast

Vertical axis: mph · Horizontal axis: hours

Sustained wind Max gusts

Internal PR simulation: 4.10 Population: 6,986

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Forecast data for Belfast were last refreshed today at 1:56 PM. The current forecast period extends through 31/08/2026 at 11:00 AM. Weather, air-quality and UV-index data are provided through WEATHER-INFO.COM. Forecasts are produced automatically from the latest available data and are subject to periodic technical checks. This service is intended for general weather information.