Monthly outlook for Belfast, NY: average high 54.1°, average low 37.4°. That is 0.9° below the climate normal for October. Precipitation is expected on 6 days (about 1.1 inches), against a normal of 7 days and 1.9 inches. The warmest day looks like 13 October (79.1°), the coolest 19 October (24.4°).
54.1°/37.4°
Average high / low
−0.9°
Below normal
6 / 7
Wet days / normal
1.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
57.5°
56.7°
+0.4°
21 October – 30 October
48.6°
53.1°
-2.5°
31 October – 9 November
at normal
50°
—
October records over 66 years
83.1°5 October 2025All-time high
20.3°20 October 1972All-time low
Mon, 1268° / 46°0
68 °
Belfast, Monday, 12 October
Overcast. High 68°, low 46°.
Pressure29.94 inHg
Wind5.2 mph NW
Humidity82%
Visibility6.2 mi
Dew point56°
Tue, 1379° / 59°0
79 °
Belfast, Tuesday, 13 October
Overcast. High 79°, low 59°.
Pressure29.80 inHg
Wind13 mph SW
Humidity68%
Visibility6.2 mi
Dew point62°
Wed, 1467° / 55°0.06
67 °
Belfast, Wednesday, 14 October
Light rain. High 67°, low 55°.
Pressure29.91 inHg
Wind9.7 mph W
Humidity81%
Visibility6.2 mi
Dew point57°
Thu, 1555° / 44°0.01
55 °
Belfast, Thursday, 15 October
Light rain. High 55°, low 44°.
Pressure30.33 inHg
Wind11.5 mph NW
Humidity62%
Visibility—
Dew point38°
Fri, 1660° / 42°0.41
60 °
Belfast, Friday, 16 October
Rain. High 60°, low 42°.
Pressure29.91 inHg
Wind19.8 mph W
Humidity67%
Visibility—
Dew point42°
Sat, 1747° / 29°0.17
47 °
Belfast, Saturday, 17 October
Snow. High 47°, low 29°.
Pressure29.85 inHg
Wind14.2 mph N
Humidity97%
Visibility—
Dew point39°
Sun, 1837° / 24°0.02
37 °
Belfast, Sunday, 18 October
Light snow. High 37°, low 24°.
Pressure30.53 inHg
Wind11.7 mph N
Humidity72%
Visibility—
Dew point24°
Mon, 1947° / 24°0
47 °
Belfast, Monday, 19 October
Mostly clear. High 47°, low 24°.
Pressure30.65 inHg
Wind4.6 mph SW
Humidity58%
Visibility—
Dew point25°
Tue, 2054° / 31°0
54 °
Belfast, Tuesday, 20 October
Overcast. High 54°, low 31°.
Pressure30.50 inHg
Wind4.5 mph SW
Humidity49%
Visibility—
Dew point27°
Wed, 2156° / 34°0
56 °
Belfast, Wednesday, 21 October
Overcast. High 56°, low 34°.
Pressure30.36 inHg
Wind8.8 mph SW
Humidity49%
Visibility—
Dew point29°
Thu, 2261° / 44°0
61 °
Belfast, Thursday, 22 October
Partly cloudy. High 61°, low 44°.
Pressure30.00 inHg
Wind16.2 mph SW
Humidity52%
Visibility—
Dew point36°
Fri, 2347° / 35°0.06
47 °
Belfast, Friday, 23 October
Snow. High 47°, low 35°.
Pressure30.15 inHg
Wind8.6 mph NW
Humidity91%
Visibility—
Dew point40°
Sat, 2439° / 29°0
39 °
Belfast, Saturday, 24 October
Mostly clear. High 39°, low 29°.
Pressure30.27 inHg
Wind10.5 mph NW
Humidity59%
Visibility—
Dew point25°
Sun, 2537° / 28°0.09
37 °
Belfast, Sunday, 25 October
Snow. High 37°, low 28°.
Pressure30.33 inHg
Wind5.1 mph SW
Humidity99%
Visibility—
Dew point35°
Mon, 2652° / 29°0
52 °
Belfast, Monday, 26 October
Overcast. High 52°, low 29°.
Pressure30.47 inHg
Wind6.7 mph SW
Humidity83%
Visibility—
Dew point36°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2753° / 39°0.12
53 °
Belfast, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.12 in
Chance of precipitation40%
Record high72° (2023)
Record low25° (1976)
Wed, 2852° / 38°0.11
52 °
Belfast, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.11 in
Chance of precipitation43%
Record high70° (2014)
Record low24° (1976)
Thu, 2950° / 37°0.15
50 °
Belfast, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.15 in
Chance of precipitation43%
Record high68° (1971)
Record low24° (1965)
Fri, 3051° / 37°0.09
51 °
Belfast, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.09 in
Chance of precipitation27%
Record high71° (2024)
Record low24° (2011)
Sat, 3153° / 38°0.11
53 °
Belfast, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high53°
Average low38°
Average precipitation0.11 in
Chance of precipitation32%
Record high73° (2024)
Record low25° (1988)
Sun, 0152° / 39°0.11
52 °
Belfast, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.11 in
Chance of precipitation38%
Record high68° (1974)
Record low27° (1993)
Mon, 0253° / 39°0.14
53 °
Belfast, Monday, 2 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.14 in
Chance of precipitation52%
Record high71° (2016)
Record low22° (1993)
Tue, 0352° / 37°0.08
52 °
Belfast, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low37°
Average precipitation0.08 in
Chance of precipitation40%
Record high68° (2015)
Record low26° (1984)
Wed, 0450° / 37°0.11
50 °
Belfast, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.11 in
Chance of precipitation33%
Record high72° (2003)
Record low23° (1989)
Thu, 0550° / 37°0.09
50 °
Belfast, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.09 in
Chance of precipitation50%
Record high71° (2022)
Record low20° (1991)
Fri, 0649° / 36°0.09
49 °
Belfast, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.09 in
Chance of precipitation50%
Record high71° (2022)
Record low26° (1966)
Sat, 0747° / 34°0.1
47 °
Belfast, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low34°
Average precipitation0.1 in
Chance of precipitation47%
Record high69° (1975)
Record low19° (1992)
Sun, 0848° / 34°0.09
48 °
Belfast, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.09 in
Chance of precipitation32%
Record high68° (2020)
Record low18° (1992)
Mon, 0948° / 34°0.09
48 °
Belfast, Monday, 9 November
Climate normal for this date — 60-year average.
Average high48°
Average low34°
Average precipitation0.09 in
Chance of precipitation35%
Record high71° (2020)
Record low13° (1992)
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, NY 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, NY 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.