Monthly outlook for Altona, NY: average high 53°, average low 38.1°. That is 0.1° below the climate normal for October. Precipitation is expected on 5 days (about 1.8 inches), against a normal of 6 days and 2.3 inches. The warmest day looks like 16 October (69°), the coolest 26 October (30.8°).
53°/38.1°
Average high / low
−0.1°
Below normal
5 / 6
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
55.4°
54.4°
+0.6°
24 October – 2 November
49.2°
50.8°
-0.9°
3 November – 12 November
at normal
46.5°
—
October records over 66 years
79.9°5 October 2025All-time high
25.7°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Chazy (10 mi).
Thu, 1548° / 39°0
48 °
Altona, Thursday, 15 October
Overcast. High 48°, low 39°.
Pressure30.27 inHg
Wind4.9 mph NW
Humidity55%
Visibility6.2 mi
Dew point33°
Fri, 1669° / 41°0.91
69 °
Altona, Friday, 16 October
Rain. High 69°, low 41°.
Pressure29.53 inHg
Wind2.7 mph S
Humidity98%
Visibility3.2 mi
Dew point54°
Sat, 1742° / 34°0
42 °
Altona, Saturday, 17 October
Mostly clear. High 42°, low 34°.
Pressure30.12 inHg
Wind14.9 mph NW
Humidity65%
Visibility6.2 mi
Dew point20°
Sun, 1854° / 32°0
54 °
Altona, Sunday, 18 October
Clear. High 54°, low 32°.
Pressure30.50 inHg
Wind11.7 mph SW
Humidity52%
Visibility—
Dew point28°
Mon, 1963° / 46°0
63 °
Altona, Monday, 19 October
Clear. High 63°, low 46°.
Pressure30.50 inHg
Wind12 mph SW
Humidity42%
Visibility—
Dew point33°
Tue, 2061° / 43°0
61 °
Altona, Tuesday, 20 October
Mostly clear. High 61°, low 43°.
Pressure30.30 inHg
Wind9.8 mph NW
Humidity60%
Visibility—
Dew point43°
Wed, 2157° / 41°0
57 °
Altona, Wednesday, 21 October
Partly cloudy. High 57°, low 41°.
Pressure30.36 inHg
Wind5.4 mph W
Humidity50%
Visibility—
Dew point33°
Thu, 2262° / 43°0.43
62 °
Altona, Thursday, 22 October
Rain. High 62°, low 43°.
Pressure30.00 inHg
Wind18.5 mph NW
Humidity56%
Visibility—
Dew point42°
Fri, 2345° / 33°0
45 °
Altona, Friday, 23 October
Clear. High 45°, low 33°.
Pressure30.27 inHg
Wind16.6 mph NW
Humidity58%
Visibility—
Dew point26°
Sat, 2448° / 32°0
48 °
Altona, Saturday, 24 October
Overcast. High 48°, low 32°.
Pressure30.33 inHg
Wind5.6 mph S
Humidity49%
Visibility—
Dew point26°
Sun, 2555° / 36°0.06
55 °
Altona, Sunday, 25 October
Light rain. High 55°, low 36°.
Pressure29.65 inHg
Wind16.2 mph W
Humidity88%
Visibility—
Dew point50°
Mon, 2638° / 31°0
38 °
Altona, Monday, 26 October
Overcast. High 38°, low 31°.
Pressure30.03 inHg
Wind17.3 mph W
Humidity69%
Visibility—
Dew point25°
Tue, 2751° / 31°0
51 °
Altona, Tuesday, 27 October
Overcast. High 51°, low 31°.
Pressure30.06 inHg
Wind9.8 mph W
Humidity58%
Visibility—
Dew point30°
Wed, 2856° / 38°0
56 °
Altona, Wednesday, 28 October
Partly cloudy. High 56°, low 38°.
Pressure30.09 inHg
Wind4.9 mph W
Humidity62%
Visibility—
Dew point37°
Thu, 2947° / 45°0.28
47 °
Altona, Thursday, 29 October
Light rain. High 47°, low 45°.
Pressure29.77 inHg
Wind5.7 mph SE
Humidity95%
Visibility—
Dew point44°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3049° / 38°0.07
49 °
Altona, Friday, 30 October
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.07 in
Chance of precipitation25%
Record high67° (1989)
Record low26° (2002)
Sat, 3150° / 38°0.1
50 °
Altona, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.1 in
Chance of precipitation27%
Record high71° (2024)
Record low26° (1972)
Sun, 0151° / 39°0.13
51 °
Altona, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.13 in
Chance of precipitation47%
Record high65° (2019)
Record low26° (1965)
Mon, 0250° / 39°0.15
50 °
Altona, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.15 in
Chance of precipitation43%
Record high66° (1971)
Record low23° (1965)
Tue, 0349° / 38°0.13
49 °
Altona, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.13 in
Chance of precipitation47%
Record high68° (1982)
Record low22° (2002)
Wed, 0448° / 38°0.11
48 °
Altona, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.11 in
Chance of precipitation40%
Record high66° (1987)
Record low27° (1989)
Thu, 0548° / 37°0.15
48 °
Altona, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.15 in
Chance of precipitation47%
Record high67° (2022)
Record low23° (1986)
Fri, 0649° / 38°0.14
49 °
Altona, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.14 in
Chance of precipitation43%
Record high67° (2024)
Record low25° (1962)
Sat, 0747° / 37°0.08
47 °
Altona, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low37°
Average precipitation0.08 in
Chance of precipitation40%
Record high66° (1975)
Record low19° (2002)
Sun, 0845° / 35°0.12
45 °
Altona, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high45°
Average low35°
Average precipitation0.12 in
Chance of precipitation32%
Record high68° (1975)
Record low25° (2002)
Mon, 0946° / 35°0.1
46 °
Altona, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.1 in
Chance of precipitation40%
Record high62° (2009)
Record low22° (1971)
Tue, 1046° / 36°0.13
46 °
Altona, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low36°
Average precipitation0.13 in
Chance of precipitation42%
Record high63° (1966)
Record low20° (2017)
Wed, 1144° / 35°0.15
44 °
Altona, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low35°
Average precipitation0.15 in
Chance of precipitation53%
Record high63° (2002)
Record low19° (2017)
Thu, 1243° / 33°0.14
43 °
Altona, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low33°
Average precipitation0.14 in
Chance of precipitation47%
Record high62° (2012)
Record low15° (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 Altona, 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 Altona, 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.