As of 03:59 EDT

Weather in Belfast, ME

45°

Belfast, Friday, 9 October, 03:59

Overcast. Feels like 45°. High 60°, low 45°.

Pressure29.88 inHg

Wind0.2 mph NW

Humidity93%

Visibility6.2 mi

Dew point43°

See detailed hourly forecast

Monthly outlook for Belfast, ME: average high 56.7°, average low 41.4°. That is 1° above the climate normal for October. Precipitation is expected on 6 days (about 0.8 inches), against a normal of 5 days and 2.3 inches. The warmest day looks like 17 October (67.8°), the coolest 24 October (31.9°).

56.7°/41.4°

Average high / low

+1°

Above normal

6 / 5

Wet days / normal

0.8 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 October – 18 October	58.1°	55.7°	+1.3°
19 October – 28 October	54.3°	52.6°	+0.9°
29 October – 7 November	at normal	49.2°	—

October records over 66 years

83.1°6 October 2025All-time high

25.7°31 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Swanville (7 mi).

Sat, 1054° / 41°

54 °

Belfast, Saturday, 10 October

Clear. High 54°, low 41°.

Pressure30.39 inHg

Wind11.6 mph NW

Humidity48%

Visibility6.2 mi

Dew point30°

Sun, 1160° / 38°

60 °

Belfast, Sunday, 11 October

Overcast. High 60°, low 38°.

Pressure30.36 inHg

Wind7.9 mph SW

Humidity48%

Visibility6.2 mi

Dew point38°

Mon, 1265° / 50°

0.05

65 °

Belfast, Monday, 12 October

Light rain. High 65°, low 50°.

Pressure29.74 inHg

Wind4.1 mph W

Humidity70%

Visibility6.2 mi

Dew point51°

Tue, 1354° / 45°

0.28

54 °

Belfast, Tuesday, 13 October

Light rain. High 54°, low 45°.

Pressure29.77 inHg

Wind10.3 mph NE

Humidity99%

Visibility—

Dew point49°

Wed, 1454° / 44°

0.09

54 °

Belfast, Wednesday, 14 October

Light rain. High 54°, low 44°.

Pressure29.80 inHg

Wind18.2 mph N

Humidity82%

Visibility—

Dew point43°

Thu, 1557° / 43°

57 °

Belfast, Thursday, 15 October

Clear. High 57°, low 43°.

Pressure30.21 inHg

Wind11.4 mph NW

Humidity54%

Visibility—

Dew point34°

Fri, 1657° / 45°

0.22

57 °

Belfast, Friday, 16 October

Rain. High 57°, low 45°.

Pressure30.21 inHg

Wind14.3 mph S

Humidity92%

Visibility—

Dew point47°

Sat, 1768° / 47°

0.11

68 °

Belfast, Saturday, 17 October

Light rain. High 68°, low 47°.

Pressure29.85 inHg

Wind12.8 mph NW

Humidity81%

Visibility—

Dew point60°

Sun, 1850° / 38°

50 °

Belfast, Sunday, 18 October

Clear. High 50°, low 38°.

Pressure30.36 inHg

Wind14.1 mph NW

Humidity49%

Visibility—

Dew point26°

Mon, 1956° / 38°

56 °

Belfast, Monday, 19 October

Overcast. High 56°, low 38°.

Pressure30.33 inHg

Wind9.9 mph NW

Humidity48%

Visibility—

Dew point30°

Tue, 2052° / 34°

52 °

Belfast, Tuesday, 20 October

Clear. High 52°, low 34°.

Pressure30.59 inHg

Wind8.2 mph NW

Humidity39%

Visibility—

Dew point21°

Wed, 2156° / 41°

0.09

56 °

Belfast, Wednesday, 21 October

Light rain. High 56°, low 41°.

Pressure30.33 inHg

Wind13.8 mph SW

Humidity59%

Visibility—

Dew point39°

Thu, 2263° / 46°

63 °

Belfast, Thursday, 22 October

Clear. High 63°, low 46°.

Pressure30.00 inHg

Wind11.4 mph NW

Humidity67%

Visibility—

Dew point47°

Fri, 2351° / 36°

51 °

Belfast, Friday, 23 October

Overcast. High 51°, low 36°.

Pressure30.15 inHg

Wind7.6 mph N

Humidity63%

Visibility—

Dew point35°

Sat, 2448° / 32°

48 °

Belfast, Saturday, 24 October

Clear. High 48°, low 32°.

Pressure30.39 inHg

Wind5.4 mph N

Humidity38%

Visibility—

Dew point19°

From day 17 onward the outlook is built from 60-year climate statistics

Sun, 2552° / 42°

0.13

52 °

Belfast, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high52°

Average low42°

Average precipitation0.13 in

Chance of precipitation35%

Record high71° (1963)

Record low31° (2018)

Mon, 2651° / 41°

0.2

51 °

Belfast, Monday, 26 October

Climate normal for this date — 60-year average.

Average high51°

Average low41°

Average precipitation0.2 in

Chance of precipitation38%

Record high73° (1963)

Record low29° (2018)

Tue, 2751° / 40°

0.13

51 °

Belfast, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high51°

Average low40°

Average precipitation0.13 in

Chance of precipitation33%

Record high71° (1963)

Record low28° (1976)

Wed, 2851° / 39°

0.19

51 °

Belfast, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high51°

Average low39°

Average precipitation0.19 in

Chance of precipitation35%

Record high76° (2023)

Record low28° (1974)

Thu, 2950° / 38°

0.11

50 °

Belfast, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high50°

Average low38°

Average precipitation0.11 in

Chance of precipitation28%

Record high66° (1989)

Record low28° (1965)

Fri, 3048° / 37°

0.14

48 °

Belfast, Friday, 30 October

Climate normal for this date — 60-year average.

Average high48°

Average low37°

Average precipitation0.14 in

Chance of precipitation28%

Record high64° (1989)

Record low28° (1962)

Sat, 3150° / 38°

0.11

50 °

Belfast, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high50°

Average low38°

Average precipitation0.11 in

Chance of precipitation23%

Record high73° (2024)

Record low26° (2020)

Sun, 0151° / 39°

0.11

51 °

Belfast, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high51°

Average low39°

Average precipitation0.11 in

Chance of precipitation35%

Record high71° (2024)

Record low28° (1992)

Mon, 0249° / 39°

0.17

49 °

Belfast, Monday, 2 November

Climate normal for this date — 60-year average.

Average high49°

Average low39°

Average precipitation0.17 in

Chance of precipitation33%

Record high60° (2001)

Record low23° (2002)

Tue, 0349° / 38°

0.24

49 °

Belfast, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°

Average low38°

Average precipitation0.24 in

Chance of precipitation45%

Record high65° (2017)

Record low22° (2002)

Wed, 0449° / 38°

0.07

49 °

Belfast, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°

Average low38°

Average precipitation0.07 in

Chance of precipitation30%

Record high65° (1990)

Record low24° (2020)

Thu, 0549° / 38°

0.15

49 °

Belfast, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high49°

Average low38°

Average precipitation0.15 in

Chance of precipitation38%

Record high69° (2022)

Record low24° (1965)

Fri, 0648° / 38°

0.15

48 °

Belfast, Friday, 6 November

Climate normal for this date — 60-year average.

Average high48°

Average low38°

Average precipitation0.15 in

Chance of precipitation40%

Record high72° (2024)

Record low28° (1987)

Sat, 0748° / 37°

0.05

48 °

Belfast, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high48°

Average low37°

Average precipitation0.05 in

Chance of precipitation25%

Record high71° (2022)

Record low17° (2002)

About the monthly outlook

How accurate is a 30-day forecast?

The first 16 days come from weather models — reliable for the first 3–5 days and progressively less so after that. Days 17 through 30 for Belfast, ME are built from the climate normal, the 60-year average, so they show typical weather for those dates rather than a specific forecast.

What does "above normal" mean?

We compare the forecast against the climate normal for those exact calendar days, computed from 60 years of observations. The deviation shows how much the coming month differs from a typical one.

Where do the 66-year records come from?

They are real temperature extremes recorded in Belfast, ME since 1960: the highest and lowest reading for each calendar date, with the year it happened.

How often is it updated?

The forecast portion refreshes every hour; the climate portion is based on long-term data and stays stable.