Monthly outlook for Olean, NY: average high 56.6°, average low 40.4°. That is 0.3° above the climate normal for October. Precipitation is expected on 6 days (about 3.5 inches), against a normal of 7 days and 1.9 inches. The warmest day looks like 10 October (71.4°), the coolest 14 October (30.4°).
56.6°/40.4°
Average high / low
+0.3°
Above normal
6 / 7
Wet days / normal
3.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
7 October – 16 October
60.8°
57.7°
+1.7°
17 October – 26 October
49.4°
53°
-2°
27 October – 5 November
at normal
50.3°
—
October records over 66 years
81.3°1 October 2019All-time high
21.2°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Otto (10 mi).
Thu, 0865° / 45°0.02
65 °
Olean, Thursday, 8 October
Light rain. High 65°, low 45°.
Pressure29.91 inHg
Wind13.2 mph W
Humidity51%
Visibility6.2 mi
Dew point41°
Fri, 0962° / 44°0
62 °
Olean, Friday, 9 October
Partly cloudy. High 62°, low 44°.
Pressure30.21 inHg
Wind11.5 mph W
Humidity51%
Visibility6.2 mi
Dew point41°
Sat, 1071° / 42°0
71 °
Olean, Saturday, 10 October
Clear. High 71°, low 42°.
Pressure30.39 inHg
Wind8.3 mph S
Humidity46%
Visibility6.2 mi
Dew point43°
Sun, 1161° / 55°0.18
61 °
Olean, Sunday, 11 October
Light rain. High 61°, low 55°.
Pressure30.18 inHg
Wind11.9 mph SE
Humidity98%
Visibility—
Dew point58°
Mon, 1268° / 53°0.01
68 °
Olean, Monday, 12 October
Light rain. High 68°, low 53°.
Pressure29.74 inHg
Wind10 mph W
Humidity79%
Visibility—
Dew point60°
Tue, 1344° / 34°0.58
44 °
Olean, Tuesday, 13 October
Snow. High 44°, low 34°.
Pressure29.94 inHg
Wind8.2 mph NE
Humidity95%
Visibility—
Dew point38°
Wed, 1447° / 30°0
47 °
Olean, Wednesday, 14 October
Overcast. High 47°, low 30°.
Pressure30.33 inHg
Wind8.1 mph N
Humidity82%
Visibility—
Dew point34°
Thu, 1554° / 33°0
54 °
Olean, Thursday, 15 October
Overcast. High 54°, low 33°.
Pressure30.27 inHg
Wind5.7 mph SE
Humidity54%
Visibility—
Dew point32°
Fri, 1668° / 48°0.23
68 °
Olean, Friday, 16 October
Rain. High 68°, low 48°.
Pressure30.00 inHg
Wind11.7 mph S
Humidity84%
Visibility—
Dew point52°
Sat, 1755° / 43°2.29
55 °
Olean, Saturday, 17 October
Heavy rain. High 55°, low 43°.
Pressure29.85 inHg
Wind10 mph NW
Humidity98%
Visibility—
Dew point46°
Sun, 1842° / 36°0.09
42 °
Olean, Sunday, 18 October
Snow. High 42°, low 36°.
Pressure29.91 inHg
Wind14.6 mph NW
Humidity82%
Visibility—
Dew point37°
Mon, 1949° / 35°0.01
49 °
Olean, Monday, 19 October
Light rain. High 49°, low 35°.
Pressure30.24 inHg
Wind12.6 mph W
Humidity71%
Visibility—
Dew point34°
Tue, 2048° / 34°0
48 °
Olean, Tuesday, 20 October
Clear. High 48°, low 34°.
Pressure30.42 inHg
Wind11.4 mph NW
Humidity58%
Visibility—
Dew point30°
Wed, 2153° / 32°0
53 °
Olean, Wednesday, 21 October
Clear. High 53°, low 32°.
Pressure30.36 inHg
Wind10 mph W
Humidity68%
Visibility—
Dew point34°
Thu, 2249° / 40°0.08
49 °
Olean, Thursday, 22 October
Light rain. High 49°, low 40°.
Pressure30.06 inHg
Wind6.2 mph W
Humidity92%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 2354° / 39°0.1
54 °
Olean, Friday, 23 October
Climate normal for this date — 60-year average.
Average high54°
Average low39°
Average precipitation0.1 in
Chance of precipitation40%
Record high73° (2020)
Record low22° (1969)
Sat, 2453° / 39°0.09
53 °
Olean, Saturday, 24 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.09 in
Chance of precipitation48%
Record high72° (1963)
Record low23° (1969)
Sun, 2553° / 39°0.14
53 °
Olean, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.14 in
Chance of precipitation35%
Record high73° (1963)
Record low26° (1962)
Mon, 2652° / 39°0.09
52 °
Olean, Monday, 26 October
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.09 in
Chance of precipitation38%
Record high73° (1963)
Record low27° (1960)
Tue, 2752° / 38°0.13
52 °
Olean, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.13 in
Chance of precipitation38%
Record high71° (2023)
Record low24° (1976)
Wed, 2851° / 37°0.11
51 °
Olean, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.11 in
Chance of precipitation45%
Record high67° (1971)
Record low23° (1976)
Thu, 2949° / 36°0.15
49 °
Olean, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.15 in
Chance of precipitation38%
Record high67° (1971)
Record low23° (1965)
Fri, 3050° / 36°0.09
50 °
Olean, Friday, 30 October
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.09 in
Chance of precipitation28%
Record high70° (2024)
Record low24° (1980)
Sat, 3151° / 37°0.11
51 °
Olean, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.11 in
Chance of precipitation35%
Record high72° (2024)
Record low24° (1988)
Sun, 0151° / 38°0.11
51 °
Olean, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.11 in
Chance of precipitation42%
Record high67° (1974)
Record low26° (2023)
Mon, 0251° / 37°0.13
51 °
Olean, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.13 in
Chance of precipitation50%
Record high69° (2016)
Record low23° (1965)
Tue, 0350° / 36°0.08
50 °
Olean, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low36°
Average precipitation0.08 in
Chance of precipitation32%
Record high67° (2015)
Record low25° (1984)
Wed, 0448° / 36°0.1
48 °
Olean, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.1 in
Chance of precipitation37%
Record high70° (2003)
Record low21° (1991)
Thu, 0548° / 36°0.09
48 °
Olean, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.09 in
Chance of precipitation47%
Record high71° (2022)
Record low17° (1991)
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 Olean, 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 Olean, 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.