Monthly outlook for Lewis, NY: average high 51.9°, average low 34.3°. That is 0.9° below the climate normal for October. Precipitation is expected on 1 day (about 1.0 inches), against a normal of 6 days and 2.2 inches. The warmest day looks like 19 October (69.9°), the coolest 24 October (28.1°).
51.9°/34.3°
Average high / low
−0.9°
Below normal
1 / 6
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
53.7°
54.8°
-0.6°
25 October – 3 November
48.8°
51.2°
-1.3°
4 November – 13 November
at normal
46.7°
—
October records over 66 years
81.5°4 October 2023All-time high
25.3°24 October 1969All-time low
Climate normals and records are computed from the nearest reference point — Westport (10 mi).
Fri, 1661° / 42°0.94
61 °
Lewis, Friday, 16 October
Heavy rain. High 61°, low 42°.
Pressure29.56 inHg
Wind6.3 mph S
Humidity88%
Visibility6.2 mi
Dew point54°
Sat, 1745° / 32°0
45 °
Lewis, Saturday, 17 October
Mostly clear. High 45°, low 32°.
Pressure30.15 inHg
Wind13 mph NW
Humidity64%
Visibility6.2 mi
Dew point18°
Sun, 1859° / 28°0
59 °
Lewis, Sunday, 18 October
Overcast. High 59°, low 28°.
Pressure30.45 inHg
Wind4.2 mph SW
Humidity47%
Visibility6.2 mi
Dew point31°
Mon, 1970° / 43°0
70 °
Lewis, Monday, 19 October
Clear. High 70°, low 43°.
Pressure30.42 inHg
Wind5.2 mph SW
Humidity35%
Visibility6.2 mi
Dew point32°
Tue, 2068° / 40°0
68 °
Lewis, Tuesday, 20 October
Clear. High 68°, low 40°.
Pressure30.33 inHg
Wind4.5 mph NW
Humidity45%
Visibility—
Dew point38°
Wed, 2149° / 35°0
49 °
Lewis, Wednesday, 21 October
Clear. High 49°, low 35°.
Pressure30.45 inHg
Wind8.4 mph NE
Humidity61%
Visibility—
Dew point31°
Thu, 2250° / 33°0
50 °
Lewis, Thursday, 22 October
Overcast. High 50°, low 33°.
Pressure30.42 inHg
Wind5.8 mph E
Humidity54%
Visibility—
Dew point28°
Fri, 2338° / 30°0.02
38 °
Lewis, Friday, 23 October
Snow. High 38°, low 30°.
Pressure30.53 inHg
Wind8.9 mph N
Humidity93%
Visibility—
Dew point33°
Sat, 2447° / 28°0
47 °
Lewis, Saturday, 24 October
Clear. High 47°, low 28°.
Pressure30.71 inHg
Wind4.3 mph E
Humidity55%
Visibility—
Dew point25°
Sun, 2552° / 32°0
52 °
Lewis, Sunday, 25 October
Clear. High 52°, low 32°.
Pressure30.53 inHg
Wind4.6 mph E
Humidity40%
Visibility—
Dew point22°
Mon, 2651° / 35°0
51 °
Lewis, Monday, 26 October
Overcast. High 51°, low 35°.
Pressure30.45 inHg
Wind10.7 mph N
Humidity56%
Visibility—
Dew point32°
Tue, 2752° / 30°0
52 °
Lewis, Tuesday, 27 October
Overcast. High 52°, low 30°.
Pressure30.33 inHg
Wind6.8 mph S
Humidity54%
Visibility—
Dew point26°
Wed, 2851° / 31°0.03
51 °
Lewis, Wednesday, 28 October
Light rain. High 51°, low 31°.
Pressure30.18 inHg
Wind13 mph NW
Humidity60%
Visibility—
Dew point26°
Thu, 2941° / 30°0.02
41 °
Lewis, Thursday, 29 October
Light rain. High 41°, low 30°.
Pressure30.33 inHg
Wind4.5 mph SE
Humidity54%
Visibility—
Dew point23°
Fri, 3045° / 38°0.01
45 °
Lewis, Friday, 30 October
Light rain. High 45°, low 38°.
Pressure30.15 inHg
Wind4 mph S
Humidity90%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3151° / 37°0.11
51 °
Lewis, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high51°
Average low37°
Average precipitation0.11 in
Chance of precipitation28%
Record high74° (2024)
Record low26° (1972)
Sun, 0151° / 39°0.13
51 °
Lewis, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.13 in
Chance of precipitation43%
Record high67° (1974)
Record low27° (1965)
Mon, 0251° / 38°0.15
51 °
Lewis, Monday, 2 November
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.15 in
Chance of precipitation42%
Record high67° (1982)
Record low23° (1965)
Tue, 0350° / 37°0.13
50 °
Lewis, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.13 in
Chance of precipitation43%
Record high69° (1982)
Record low24° (2002)
Wed, 0449° / 37°0.11
49 °
Lewis, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.11 in
Chance of precipitation32%
Record high67° (1987)
Record low27° (1989)
Thu, 0549° / 37°0.16
49 °
Lewis, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.16 in
Chance of precipitation45%
Record high70° (2022)
Record low24° (1986)
Fri, 0649° / 38°0.12
49 °
Lewis, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.12 in
Chance of precipitation38%
Record high72° (2022)
Record low26° (1962)
Sat, 0747° / 36°0.08
47 °
Lewis, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.08 in
Chance of precipitation40%
Record high67° (2020)
Record low21° (1962)
Sun, 0846° / 35°0.11
46 °
Lewis, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.11 in
Chance of precipitation35%
Record high68° (1975)
Record low24° (2002)
Mon, 0946° / 35°0.11
46 °
Lewis, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.11 in
Chance of precipitation37%
Record high64° (1996)
Record low22° (1976)
Tue, 1047° / 35°0.12
47 °
Lewis, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.12 in
Chance of precipitation42%
Record high65° (2020)
Record low23° (2017)
Wed, 1145° / 35°0.15
45 °
Lewis, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.15 in
Chance of precipitation45%
Record high64° (2022)
Record low20° (2017)
Thu, 1244° / 33°0.13
44 °
Lewis, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high44°
Average low33°
Average precipitation0.13 in
Chance of precipitation45%
Record high64° (2022)
Record low20° (2019)
Fri, 1343° / 31°0.1
43 °
Lewis, Friday, 13 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.1 in
Chance of precipitation37%
Record high58° (1964)
Record low13° (2019)
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 Lewis, 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 Lewis, 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.