Monthly outlook for Kosterville, NY: average high 57.7°, average low 44.4°. That is 1.9° above the climate normal for October. Precipitation is expected on 6 days (about 2.1 inches), against a normal of 8 days and 2.8 inches. The warmest day looks like 24 October (69.8°), the coolest 17 October (33°).
57.7°/44.4°
Average high / low
+1.9°
Above normal
6 / 8
Wet days / normal
2.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
56.1°
55.3°
+0.4°
22 October – 31 October
60.3°
51.4°
+4.9°
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, 1367° / 55°0.63
67 °
Kosterville, Tuesday, 13 October
Rain. High 67°, low 55°.
Pressure29.77 inHg
Wind11.5 mph S
Humidity97%
Visibility4.1 mi
Dew point60°
Wed, 1461° / 52°0.02
61 °
Kosterville, Wednesday, 14 October
Light rain. High 61°, low 52°.
Pressure29.91 inHg
Wind10 mph W
Humidity85%
Visibility6.2 mi
Dew point51°
Thu, 1554° / 44°0
54 °
Kosterville, Thursday, 15 October
Light rain. High 54°, low 44°.
Pressure30.27 inHg
Wind5.6 mph N
Humidity54%
Visibility6.2 mi
Dew point34°
Fri, 1651° / 39°0.48
51 °
Kosterville, Friday, 16 October
Rain. High 51°, low 39°.
Pressure29.50 inHg
Wind3.6 mph SW
Humidity98%
Visibility2.2 mi
Dew point49°
Sat, 1739° / 33°0.26
39 °
Kosterville, Saturday, 17 October
Snow. High 39°, low 33°.
Pressure30.21 inHg
Wind16.4 mph NW
Humidity83%
Visibility—
Dew point31°
Sun, 1850° / 36°0.01
50 °
Kosterville, Sunday, 18 October
Light rain. High 50°, low 36°.
Pressure30.39 inHg
Wind10.8 mph W
Humidity87%
Visibility—
Dew point38°
Mon, 1957° / 35°0
57 °
Kosterville, Monday, 19 October
Clear. High 57°, low 35°.
Pressure30.47 inHg
Wind11.9 mph S
Humidity54%
Visibility—
Dew point31°
Tue, 2060° / 41°0
60 °
Kosterville, Tuesday, 20 October
Overcast. High 60°, low 41°.
Pressure30.39 inHg
Wind4.9 mph S
Humidity66%
Visibility—
Dew point41°
Wed, 2163° / 44°0
63 °
Kosterville, Wednesday, 21 October
Clear. High 63°, low 44°.
Pressure30.27 inHg
Wind6.8 mph NW
Humidity69%
Visibility—
Dew point46°
Thu, 2263° / 44°0
63 °
Kosterville, Thursday, 22 October
Mostly clear. High 63°, low 44°.
Pressure30.30 inHg
Wind4.3 mph S
Humidity65%
Visibility—
Dew point44°
Fri, 2360° / 48°0
60 °
Kosterville, Friday, 23 October
Overcast. High 60°, low 48°.
Pressure30.15 inHg
Wind7.8 mph SW
Humidity79%
Visibility—
Dew point47°
Sat, 2470° / 57°0.08
70 °
Kosterville, Saturday, 24 October
Light rain. High 70°, low 57°.
Pressure29.80 inHg
Wind12.2 mph SW
Humidity60%
Visibility—
Dew point51°
Sun, 2559° / 48°0.59
59 °
Kosterville, Sunday, 25 October
Rain. High 59°, low 48°.
Pressure29.71 inHg
Wind12.8 mph W
Humidity88%
Visibility—
Dew point48°
Mon, 2652° / 42°0
52 °
Kosterville, Monday, 26 October
Overcast. High 52°, low 42°.
Pressure30.21 inHg
Wind6.1 mph W
Humidity78%
Visibility—
Dew point43°
Tue, 2758° / 40°0
58 °
Kosterville, Tuesday, 27 October
Overcast. High 58°, low 40°.
Pressure30.27 inHg
Wind7.5 mph SE
Humidity64%
Visibility—
Dew point38°
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.