Monthly outlook for Altona, NY: average high 49.9°, average low 33.9°. That is 0.7° below the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 27 October (64.9°), the coolest 31 October (26.4°).
49.9°/33.9°
Average high / low
−0.7°
Below normal
4 / 6
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
20 October – 29 October
53.4°
52.1°
+0.7°
30 October – 8 November
44°
48.6°
-2.6°
9 November – 18 November
at normal
42.9°
—
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).
Wed, 2157° / 31°0
57 °
Altona, Wednesday, 21 October
Clear. High 57°, low 31°.
Pressure30.33 inHg
Wind3.4 mph NE
Humidity60%
Visibility6.2 mi
Dew point35°
Thu, 2250° / 31°0
50 °
Altona, Thursday, 22 October
Light rain. High 50°, low 31°.
Pressure30.12 inHg
Wind9.9 mph NW
Humidity82%
Visibility3.2 mi
Dew point40°
Fri, 2345° / 34°0
45 °
Altona, Friday, 23 October
Clear. High 45°, low 34°.
Pressure30.42 inHg
Wind8.4 mph NW
Humidity64%
Visibility6.2 mi
Dew point27°
Sat, 2454° / 38°0
54 °
Altona, Saturday, 24 October
Clear. High 54°, low 38°.
Pressure30.50 inHg
Wind8.8 mph W
Humidity50%
Visibility—
Dew point31°
Sun, 2564° / 39°0
64 °
Altona, Sunday, 25 October
Partly cloudy. High 64°, low 39°.
Pressure30.39 inHg
Wind12.9 mph W
Humidity39%
Visibility—
Dew point32°
Mon, 2661° / 48°0
61 °
Altona, Monday, 26 October
Overcast. High 61°, low 48°.
Pressure30.24 inHg
Wind10.5 mph W
Humidity69%
Visibility—
Dew point46°
Tue, 2765° / 36°0.09
65 °
Altona, Tuesday, 27 October
Snow. High 65°, low 36°.
Pressure29.88 inHg
Wind13.9 mph W
Humidity62%
Visibility—
Dew point47°
Wed, 2836° / 27°0.03
36 °
Altona, Wednesday, 28 October
Light snow. High 36°, low 27°.
Pressure30.21 inHg
Wind13.2 mph NW
Humidity56%
Visibility—
Dew point17°
Thu, 2944° / 32°0
44 °
Altona, Thursday, 29 October
Overcast. High 44°, low 32°.
Pressure30.12 inHg
Wind8.9 mph S
Humidity56%
Visibility—
Dew point26°
Fri, 3039° / 30°0.04
39 °
Altona, Friday, 30 October
Light rain. High 39°, low 30°.
Pressure29.91 inHg
Wind11 mph NW
Humidity89%
Visibility—
Dew point36°
Sat, 3140° / 26°0
40 °
Altona, Saturday, 31 October
Mostly clear. High 40°, low 26°.
Pressure30.12 inHg
Wind13.8 mph W
Humidity49%
Visibility—
Dew point16°
Sun, 0145° / 38°0.16
45 °
Altona, Sunday, 1 November
Rain. High 45°, low 38°.
Pressure29.91 inHg
Wind13.3 mph SW
Humidity59%
Visibility—
Dew point31°
Mon, 0239° / 30°0.14
39 °
Altona, Monday, 2 November
Snow. High 39°, low 30°.
Pressure30.27 inHg
Wind10.7 mph W
Humidity69%
Visibility—
Dew point26°
Tue, 0348° / 32°0
48 °
Altona, Tuesday, 3 November
Partly cloudy. High 48°, low 32°.
Pressure30.56 inHg
Wind5.1 mph SE
Humidity55%
Visibility—
Dew point28°
Wed, 0453° / 36°0
53 °
Altona, Wednesday, 4 November
Overcast. High 53°, low 36°.
Pressure30.50 inHg
Wind9.1 mph SE
Humidity61%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 1542° / 32°0.14
42 °
Altona, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.14 in
Chance of precipitation45%
Record high60° (1989)
Record low17° (2018)
Mon, 1642° / 32°0.12
42 °
Altona, Monday, 16 November
Climate normal for this date — 60-year average.
Average high42°
Average low32°
Average precipitation0.12 in
Chance of precipitation35%
Record high63° (1989)
Record low10° (2019)
Tue, 1741° / 31°0.1
41 °
Altona, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high41°
Average low31°
Average precipitation0.1 in
Chance of precipitation43%
Record high62° (2006)
Record low19° (2019)
Wed, 1841° / 31°0.08
41 °
Altona, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high41°
Average low31°
Average precipitation0.08 in
Chance of precipitation30%
Record high56° (1987)
Record low15° (2018)
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.