Monthly outlook for Harrison, NY: average high 65.7°, average low 50.7°. That is 2° above the climate normal for October. Precipitation is expected on 4 days (about 0.3 inches), against a normal of 4 days and 1.9 inches. The warmest day looks like 13 October (75.5°), the coolest 18 October (40.2°).
65.7°/50.7°
Average high / low
+2°
Above normal
4 / 4
Wet days / normal
0.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
8 October – 17 October
66.6°
63.1°
+1.9°
18 October – 27 October
64.4°
59.6°
+2.6°
28 October – 6 November
at normal
56.5°
—
October records over 66 years
89.8°2 October 2019All-time high
30.6°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — White Plains (2 mi).
Fri, 0971° / 50°0
71 °
Harrison, Friday, 9 October
Clear. High 71°, low 50°.
Pressure30.12 inHg
Wind8.5 mph W
Humidity47%
Visibility6.2 mi
Dew point45°
Sat, 1066° / 48°0
66 °
Harrison, Saturday, 10 October
Overcast. High 66°, low 48°.
Pressure30.47 inHg
Wind1.5 mph NW
Humidity48%
Visibility6.2 mi
Dew point43°
Sun, 1163° / 52°0.15
63 °
Harrison, Sunday, 11 October
Light rain. High 63°, low 52°.
Pressure30.36 inHg
Wind4.9 mph SE
Humidity67%
Visibility6.2 mi
Dew point52°
Mon, 1266° / 57°0.05
66 °
Harrison, Monday, 12 October
Light rain. High 66°, low 57°.
Pressure29.77 inHg
Wind9.2 mph NE
Humidity91%
Visibility—
Dew point58°
Tue, 1376° / 54°0
76 °
Harrison, Tuesday, 13 October
Partly cloudy. High 76°, low 54°.
Pressure29.74 inHg
Wind10.7 mph W
Humidity72%
Visibility—
Dew point58°
Wed, 1462° / 47°0
62 °
Harrison, Wednesday, 14 October
Clear. High 62°, low 47°.
Pressure30.00 inHg
Wind9.1 mph N
Humidity48%
Visibility—
Dew point34°
Thu, 1557° / 45°0
57 °
Harrison, Thursday, 15 October
Partly cloudy. High 57°, low 45°.
Pressure30.33 inHg
Wind8.2 mph N
Humidity39%
Visibility—
Dew point29°
Fri, 1669° / 54°0.02
69 °
Harrison, Friday, 16 October
Light rain. High 69°, low 54°.
Pressure30.21 inHg
Wind14.1 mph SW
Humidity55%
Visibility—
Dew point45°
Sat, 1765° / 44°0
65 °
Harrison, Saturday, 17 October
Overcast. High 65°, low 44°.
Pressure30.15 inHg
Wind17.5 mph N
Humidity48%
Visibility—
Dew point35°
Sun, 1856° / 40°0
56 °
Harrison, Sunday, 18 October
Clear. High 56°, low 40°.
Pressure30.56 inHg
Wind9.3 mph N
Humidity32%
Visibility—
Dew point20°
Mon, 1963° / 48°0
63 °
Harrison, Monday, 19 October
Overcast. High 63°, low 48°.
Pressure30.47 inHg
Wind8.1 mph W
Humidity32%
Visibility—
Dew point26°
Tue, 2064° / 54°0
64 °
Harrison, Tuesday, 20 October
Overcast. High 64°, low 54°.
Pressure30.30 inHg
Wind9.3 mph SW
Humidity44%
Visibility—
Dew point36°
Wed, 2166° / 55°0.05
66 °
Harrison, Wednesday, 21 October
Light rain. High 66°, low 55°.
Pressure30.18 inHg
Wind9.9 mph SW
Humidity70%
Visibility—
Dew point50°
Thu, 2270° / 56°0
70 °
Harrison, Thursday, 22 October
Mostly clear. High 70°, low 56°.
Pressure30.15 inHg
Wind8 mph SW
Humidity73%
Visibility—
Dew point54°
Fri, 2367° / 54°0.07
67 °
Harrison, Friday, 23 October
Light rain. High 67°, low 54°.
Pressure29.94 inHg
Wind13.9 mph SW
Humidity76%
Visibility—
Dew point58°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2459° / 46°0.16
59 °
Harrison, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high59°
Average low46°
Average precipitation0.16 in
Chance of precipitation30%
Record high75° (2001)
Record low31° (1969)
Sun, 2559° / 47°0.13
59 °
Harrison, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high59°
Average low47°
Average precipitation0.13 in
Chance of precipitation32%
Record high75° (1963)
Record low37° (1962)
Mon, 2658° / 47°0.14
58 °
Harrison, Monday, 26 October
Climate normal for this date — 60-year average.
Average high58°
Average low47°
Average precipitation0.14 in
Chance of precipitation32%
Record high76° (1963)
Record low35° (1962)
Tue, 2758° / 46°0.16
58 °
Harrison, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.16 in
Chance of precipitation25%
Record high79° (1963)
Record low31° (1976)
Wed, 2858° / 45°0.17
58 °
Harrison, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.17 in
Chance of precipitation30%
Record high79° (2023)
Record low31° (1976)
Thu, 2956° / 44°0.21
56 °
Harrison, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.21 in
Chance of precipitation23%
Record high72° (1984)
Record low32° (1965)
Fri, 3056° / 43°0.13
56 °
Harrison, Friday, 30 October
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.13 in
Chance of precipitation22%
Record high75° (2024)
Record low33° (2011)
Sat, 3157° / 44°0.06
57 °
Harrison, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.06 in
Chance of precipitation22%
Record high80° (2024)
Record low31° (2020)
Sun, 0158° / 46°0.1
58 °
Harrison, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high58°
Average low46°
Average precipitation0.1 in
Chance of precipitation27%
Record high78° (2024)
Record low35° (1976)
Mon, 0258° / 45°0.09
58 °
Harrison, Monday, 2 November
Climate normal for this date — 60-year average.
Average high58°
Average low45°
Average precipitation0.09 in
Chance of precipitation35%
Record high73° (1982)
Record low31° (1965)
Tue, 0357° / 44°0.1
57 °
Harrison, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high57°
Average low44°
Average precipitation0.1 in
Chance of precipitation23%
Record high74° (2003)
Record low34° (1996)
Wed, 0456° / 43°0.05
56 °
Harrison, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high56°
Average low43°
Average precipitation0.05 in
Chance of precipitation20%
Record high71° (1975)
Record low33° (2006)
Thu, 0556° / 44°0.12
56 °
Harrison, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high56°
Average low44°
Average precipitation0.12 in
Chance of precipitation33%
Record high72° (2022)
Record low34° (1965)
Fri, 0654° / 43°0.08
54 °
Harrison, Friday, 6 November
Climate normal for this date — 60-year average.
Average high54°
Average low43°
Average precipitation0.08 in
Chance of precipitation28%
Record high78° (2024)
Record low33° (1962)
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 Harrison, 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 Harrison, 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.