Monthly outlook for Belleville, NY: average high 57.1°, average low 45°. That is 1.3° above the climate normal for October. Precipitation is expected on 6 days (about 2.5 inches), against a normal of 8 days and 2.8 inches. The warmest day looks like 13 October (67°), the coolest 18 October (23.8°).
57.1°/45°
Average high / low
+1.3°
Above normal
6 / 8
Wet days / normal
2.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
55.4°
55.9°
-0.3°
21 October – 30 October
59.8°
52.1°
+4.3°
31 October – 9 November
at normal
48.9°
—
October records over 66 years
82.4°5 October 2023All-time high
27.3°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Henderson (6 mi).
Mon, 1264° / 48°0
64 °
Belleville, Monday, 12 October
Light rain. High 64°, low 48°.
Pressure29.88 inHg
Wind7.8 mph SW
Humidity85%
Visibility6.2 mi
Dew point55°
Tue, 1367° / 49°0.56
67 °
Belleville, Tuesday, 13 October
Rain. High 67°, low 49°.
Pressure29.74 inHg
Wind13.7 mph S
Humidity96%
Visibility3.2 mi
Dew point61°
Wed, 1458° / 50°0
58 °
Belleville, Wednesday, 14 October
Overcast. High 58°, low 50°.
Pressure29.94 inHg
Wind5 mph NW
Humidity86%
Visibility6.2 mi
Dew point49°
Thu, 1554° / 49°0
54 °
Belleville, Thursday, 15 October
Overcast. High 54°, low 49°.
Pressure30.27 inHg
Wind9.7 mph NE
Humidity58%
Visibility6.2 mi
Dew point39°
Fri, 1654° / 45°0.77
54 °
Belleville, Friday, 16 October
Rain. High 54°, low 45°.
Pressure29.65 inHg
Wind24.3 mph NW
Humidity94%
Visibility—
Dew point47°
Sat, 1743° / 31°0.52
43 °
Belleville, Saturday, 17 October
Snow. High 43°, low 31°.
Pressure30.21 inHg
Wind22.7 mph NW
Humidity81%
Visibility—
Dew point32°
Sun, 1842° / 24°0
42 °
Belleville, Sunday, 18 October
Mostly clear. High 42°, low 24°.
Pressure30.56 inHg
Wind15.2 mph S
Humidity72%
Visibility—
Dew point26°
Mon, 1956° / 37°0
56 °
Belleville, Monday, 19 October
Clear. High 56°, low 37°.
Pressure30.42 inHg
Wind17.1 mph SW
Humidity71%
Visibility—
Dew point37°
Tue, 2057° / 44°0
57 °
Belleville, Tuesday, 20 October
Partly cloudy. High 57°, low 44°.
Pressure30.45 inHg
Wind8.9 mph NE
Humidity74%
Visibility—
Dew point45°
Wed, 2160° / 44°0
60 °
Belleville, Wednesday, 21 October
Overcast. High 60°, low 44°.
Pressure30.56 inHg
Wind17.1 mph S
Humidity65%
Visibility—
Dew point42°
Thu, 2262° / 48°0
62 °
Belleville, Thursday, 22 October
Overcast. High 62°, low 48°.
Pressure30.53 inHg
Wind18.5 mph S
Humidity70%
Visibility—
Dew point44°
Fri, 2364° / 51°0
64 °
Belleville, Friday, 23 October
Overcast. High 64°, low 51°.
Pressure30.39 inHg
Wind13.4 mph S
Humidity66%
Visibility—
Dew point47°
Sat, 2464° / 55°0.15
64 °
Belleville, Saturday, 24 October
Rain. High 64°, low 55°.
Pressure30.06 inHg
Wind15.5 mph S
Humidity72%
Visibility—
Dew point51°
Sun, 2558° / 50°0.47
58 °
Belleville, Sunday, 25 October
Rain. High 58°, low 50°.
Pressure29.88 inHg
Wind10.7 mph NW
Humidity95%
Visibility—
Dew point52°
Mon, 2651° / 44°0
51 °
Belleville, Monday, 26 October
Overcast. High 51°, low 44°.
Pressure29.94 inHg
Wind11.3 mph SW
Humidity74%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2752° / 44°0.16
52 °
Belleville, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high52°
Average low44°
Average precipitation0.16 in
Chance of precipitation50%
Record high73° (2023)
Record low30° (1976)
Wed, 2851° / 43°0.19
51 °
Belleville, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high51°
Average low43°
Average precipitation0.19 in
Chance of precipitation52%
Record high67° (2017)
Record low32° (1976)
Thu, 2950° / 42°0.1
50 °
Belleville, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.1 in
Chance of precipitation40%
Record high66° (2019)
Record low31° (1965)
Fri, 3050° / 42°0.12
50 °
Belleville, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.12 in
Chance of precipitation25%
Record high71° (2024)
Record low30° (2020)
Sat, 3151° / 42°0.13
51 °
Belleville, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low42°
Average precipitation0.13 in
Chance of precipitation45%
Record high74° (2024)
Record low27° (2020)
Sun, 0151° / 43°0.19
51 °
Belleville, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low43°
Average precipitation0.19 in
Chance of precipitation52%
Record high67° (2024)
Record low31° (1965)
Mon, 0250° / 42°0.24
50 °
Belleville, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low42°
Average precipitation0.24 in
Chance of precipitation58%
Record high65° (1971)
Record low27° (1965)
Tue, 0350° / 41°0.15
50 °
Belleville, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low41°
Average precipitation0.15 in
Chance of precipitation50%
Record high62° (1961)
Record low29° (2002)
Wed, 0449° / 41°0.17
49 °
Belleville, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.17 in
Chance of precipitation60%
Record high69° (2022)
Record low29° (1989)
Thu, 0549° / 41°0.17
49 °
Belleville, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.17 in
Chance of precipitation53%
Record high74° (2022)
Record low29° (1965)
Fri, 0649° / 41°0.18
49 °
Belleville, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low41°
Average precipitation0.18 in
Chance of precipitation60%
Record high69° (2022)
Record low30° (1987)
Sat, 0747° / 39°0.13
47 °
Belleville, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low39°
Average precipitation0.13 in
Chance of precipitation48%
Record high63° (2020)
Record low25° (2002)
Sun, 0846° / 38°0.16
46 °
Belleville, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low38°
Average precipitation0.16 in
Chance of precipitation43%
Record high63° (2020)
Record low25° (2019)
Mon, 0947° / 38°0.13
47 °
Belleville, Monday, 9 November
Climate normal for this date — 60-year average.
Average high47°
Average low38°
Average precipitation0.13 in
Chance of precipitation48%
Record high69° (2020)
Record low24° (1976)
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 Belleville, 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 Belleville, 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.