Monthly outlook for Altona, NY: average high 55.6°, average low 40.3°. That is 1.9° above the climate normal for October. Precipitation is expected on 3 days (about 1.0 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 19 October (64.4°), the coolest 18 October (34.8°).
55.6°/40.3°
Average high / low
+1.9°
Above normal
3 / 6
Wet days / normal
1.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
16 October – 25 October
56.6°
53.4°
+1.8°
26 October – 4 November
54.1°
50°
+2.3°
5 November – 14 November
at normal
45.2°
—
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).
Sat, 1743° / 35°0
43 °
Altona, Saturday, 17 October
Partly cloudy. High 43°, low 35°.
Pressure30.21 inHg
Wind13.6 mph NW
Humidity65%
Visibility6.2 mi
Dew point20°
Sun, 1858° / 35°0
58 °
Altona, Sunday, 18 October
Overcast. High 58°, low 35°.
Pressure30.50 inHg
Wind8.5 mph SW
Humidity52%
Visibility6.2 mi
Dew point36°
Mon, 1964° / 44°0
64 °
Altona, Monday, 19 October
Clear. High 64°, low 44°.
Pressure30.45 inHg
Wind5.8 mph W
Humidity44%
Visibility6.2 mi
Dew point38°
Tue, 2060° / 44°0
60 °
Altona, Tuesday, 20 October
Clear. High 60°, low 44°.
Pressure30.39 inHg
Wind8.1 mph W
Humidity63%
Visibility—
Dew point42°
Wed, 2154° / 38°0
54 °
Altona, Wednesday, 21 October
Partly cloudy. High 54°, low 38°.
Pressure30.47 inHg
Wind6.4 mph NE
Humidity66%
Visibility—
Dew point36°
Thu, 2255° / 37°0
55 °
Altona, Thursday, 22 October
Mostly clear. High 55°, low 37°.
Pressure30.47 inHg
Wind4.6 mph SW
Humidity53%
Visibility—
Dew point31°
Fri, 2357° / 40°0
57 °
Altona, Friday, 23 October
Mostly clear. High 57°, low 40°.
Pressure30.36 inHg
Wind4.1 mph N
Humidity50%
Visibility—
Dew point35°
Sat, 2456° / 41°0
56 °
Altona, Saturday, 24 October
Clear. High 56°, low 41°.
Pressure30.47 inHg
Wind5.1 mph NE
Humidity68%
Visibility—
Dew point41°
Sun, 2559° / 39°0
59 °
Altona, Sunday, 25 October
Clear. High 59°, low 39°.
Pressure30.53 inHg
Wind3.7 mph E
Humidity59%
Visibility—
Dew point38°
Mon, 2659° / 42°0
59 °
Altona, Monday, 26 October
Clear. High 59°, low 42°.
Pressure30.36 inHg
Wind5.1 mph N
Humidity65%
Visibility—
Dew point42°
Tue, 2756° / 42°0
56 °
Altona, Tuesday, 27 October
Overcast. High 56°, low 42°.
Pressure30.12 inHg
Wind5.2 mph N
Humidity72%
Visibility—
Dew point42°
Wed, 2854° / 39°0
54 °
Altona, Wednesday, 28 October
Clear. High 54°, low 39°.
Pressure30.09 inHg
Wind4.8 mph NE
Humidity68%
Visibility—
Dew point38°
Thu, 2956° / 40°0
56 °
Altona, Thursday, 29 October
Overcast. High 56°, low 40°.
Pressure30.03 inHg
Wind8.6 mph SE
Humidity77%
Visibility—
Dew point42°
Fri, 3047° / 46°0.09
47 °
Altona, Friday, 30 October
Light rain. High 47°, low 46°.
Pressure30.00 inHg
Wind5.2 mph S
Humidity91%
Visibility—
Dew point44°
Sat, 3152° / 43°0.13
52 °
Altona, Saturday, 31 October
Light rain. High 52°, low 43°.
Pressure29.94 inHg
Wind6.5 mph S
Humidity91%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Fri, 1342° / 31°0.09
42 °
Altona, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.09 in
Chance of precipitation42%
Record high58° (2012)
Record low9° (2019)
Sat, 1442° / 32°0.1
42 °
Altona, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.1 in
Chance of precipitation38%
Record high63° (2011)
Record low14° (1971)
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.