Monthly outlook for Kosterville, NY: average high 53°, average low 40.9°. That is 0.7° below the climate normal for October. Precipitation is expected on 8 days (about 5.2 inches), against a normal of 8 days and 2.8 inches. The warmest day looks like 13 October (66.5°), the coolest 18 October (27°).
53°/40.9°
Average high / low
−0.7°
Below normal
8 / 8
Wet days / normal
5.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
56.2°
55.3°
+0.5°
22 October – 31 October
47.6°
51.4°
-2.1°
1 November – 10 November
at normal
48°
—
October records over 66 years
81.7°4 October 2023All-time high
20.7°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Leyden (6 mi).
Tue, 1366° / 49°1.19
66 °
Kosterville, Tuesday, 13 October
Heavy rain. High 66°, low 49°.
Pressure29.80 inHg
Wind9.1 mph S
Humidity98%
Visibility2.1 mi
Dew point60°
Wed, 1459° / 52°0.04
59 °
Kosterville, Wednesday, 14 October
Light rain. High 59°, low 52°.
Pressure29.91 inHg
Wind6.4 mph NW
Humidity87%
Visibility6.2 mi
Dew point52°
Thu, 1554° / 44°0.01
54 °
Kosterville, Thursday, 15 October
Light rain. High 54°, low 44°.
Pressure30.27 inHg
Wind4.9 mph N
Humidity61%
Visibility6.2 mi
Dew point37°
Fri, 1652° / 40°0.61
52 °
Kosterville, Friday, 16 October
Rain. High 52°, low 40°.
Pressure29.56 inHg
Wind15.3 mph NW
Humidity98%
Visibility—
Dew point51°
Sat, 1740° / 28°0.08
40 °
Kosterville, Saturday, 17 October
Snow. High 40°, low 28°.
Pressure30.24 inHg
Wind17.2 mph NW
Humidity72%
Visibility—
Dew point29°
Sun, 1846° / 27°0
46 °
Kosterville, Sunday, 18 October
Overcast. High 46°, low 27°.
Pressure30.59 inHg
Wind11.4 mph S
Humidity60%
Visibility—
Dew point25°
Mon, 1957° / 35°0
57 °
Kosterville, Monday, 19 October
Mostly clear. High 57°, low 35°.
Pressure30.42 inHg
Wind10.2 mph SW
Humidity56%
Visibility—
Dew point34°
Tue, 2064° / 42°0
64 °
Kosterville, Tuesday, 20 October
Clear. High 64°, low 42°.
Pressure30.33 inHg
Wind5.7 mph NW
Humidity66%
Visibility—
Dew point45°
Wed, 2163° / 46°0
63 °
Kosterville, Wednesday, 21 October
Clear. High 63°, low 46°.
Pressure30.36 inHg
Wind7.2 mph S
Humidity66%
Visibility—
Dew point46°
Thu, 2262° / 50°0
62 °
Kosterville, Thursday, 22 October
Overcast. High 62°, low 50°.
Pressure30.24 inHg
Wind18.2 mph SE
Humidity73%
Visibility—
Dew point47°
Fri, 2356° / 47°2.52
56 °
Kosterville, Friday, 23 October
Heavy rain. High 56°, low 47°.
Pressure29.71 inHg
Wind18.5 mph SE
Humidity92%
Visibility—
Dew point53°
Sat, 2446° / 36°0.38
46 °
Kosterville, Saturday, 24 October
Snow. High 46°, low 36°.
Pressure29.53 inHg
Wind16.5 mph NW
Humidity93%
Visibility—
Dew point42°
Sun, 2540° / 36°0.31
40 °
Kosterville, Sunday, 25 October
Snow. High 40°, low 36°.
Pressure29.53 inHg
Wind14.9 mph NW
Humidity98%
Visibility—
Dew point37°
Mon, 2640° / 39°0
40 °
Kosterville, Monday, 26 October
Light rain. High 40°, low 39°.
Pressure29.74 inHg
Wind8.7 mph NW
Humidity98%
Visibility—
Dew point40°
Tue, 2741° / 38°0.01
41 °
Kosterville, Tuesday, 27 October
Light rain. High 41°, low 38°.
Pressure29.80 inHg
Wind8.8 mph NW
Humidity80%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2851° / 37°0.19
51 °
Kosterville, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.19 in
Chance of precipitation42%
Record high71° (1984)
Record low23° (1976)
Thu, 2949° / 36°0.11
49 °
Kosterville, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation42%
Record high67° (1971)
Record low25° (2013)
Fri, 3050° / 36°0.12
50 °
Kosterville, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.12 in
Chance of precipitation28%
Record high70° (2024)
Record low24° (2008)
Sat, 3151° / 36°0.13
51 °
Kosterville, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low36°
Average precipitation0.13 in
Chance of precipitation38%
Record high72° (2024)
Record low21° (2020)
Sun, 0151° / 37°0.2
51 °
Kosterville, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.2 in
Chance of precipitation48%
Record high67° (2024)
Record low26° (2023)
Mon, 0250° / 37°0.23
50 °
Kosterville, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.23 in
Chance of precipitation52%
Record high68° (1971)
Record low22° (1965)
Tue, 0350° / 36°0.15
50 °
Kosterville, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.15 in
Chance of precipitation55%
Record high68° (1982)
Record low17° (2020)
Wed, 0448° / 35°0.16
48 °
Kosterville, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.16 in
Chance of precipitation47%
Record high66° (2015)
Record low21° (2020)
Thu, 0548° / 36°0.17
48 °
Kosterville, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.17 in
Chance of precipitation50%
Record high70° (2022)
Record low19° (1962)
Fri, 0648° / 36°0.19
48 °
Kosterville, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.19 in
Chance of precipitation55%
Record high68° (2005)
Record low23° (1962)
Sat, 0746° / 34°0.12
46 °
Kosterville, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high46°
Average low34°
Average precipitation0.12 in
Chance of precipitation50%
Record high67° (1975)
Record low12° (1962)
Sun, 0845° / 33°0.16
45 °
Kosterville, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.16 in
Chance of precipitation43%
Record high65° (1975)
Record low15° (1992)
Mon, 0946° / 33°0.15
46 °
Kosterville, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.15 in
Chance of precipitation38%
Record high67° (2020)
Record low14° (1995)
Tue, 1047° / 33°0.19
47 °
Kosterville, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.19 in
Chance of precipitation48%
Record high66° (2020)
Record low13° (1995)
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 Kosterville, 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 Kosterville, 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.