Monthly outlook for Decatur, NY: average high 51.4°, average low 33.5°. That is 0.9° above the climate normal for October. Precipitation is expected on 7 days (about 0.9 inches), against a normal of 6 days and 1.9 inches. The warmest day looks like 22 October (60.6°), the coolest 4 November (25.2°).
51.4°/33.5°
Average high / low
+0.9°
Above normal
7 / 6
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
54.8°
50.6°
+2.4°
1 November – 10 November
45.7°
47.3°
-0.9°
11 November – 20 November
at normal
41.7°
—
October records over 66 years
81.1°4 October 2023All-time high
19.2°31 October 2011All-time low
Climate normals and records are computed from the nearest reference point — Summit (8 mi).
Fri, 2353° / 25°0
53 °
Decatur, Friday, 23 October
Clear. High 53°, low 25°.
Pressure30.42 inHg
Wind6 mph NE
Humidity56%
Visibility6.2 mi
Dew point27°
Sat, 2454° / 33°0
54 °
Decatur, Saturday, 24 October
Overcast. High 54°, low 33°.
Pressure30.53 inHg
Wind2.6 mph NW
Humidity47%
Visibility6.2 mi
Dew point31°
Sun, 2557° / 36°0
57 °
Decatur, Sunday, 25 October
Clear. High 57°, low 36°.
Pressure30.53 inHg
Wind5.3 mph SW
Humidity45%
Visibility6.2 mi
Dew point32°
Mon, 2660° / 37°0
60 °
Decatur, Monday, 26 October
Mostly clear. High 60°, low 37°.
Pressure30.39 inHg
Wind7.3 mph SW
Humidity54%
Visibility—
Dew point35°
Tue, 2751° / 36°0
51 °
Decatur, Tuesday, 27 October
Overcast. High 51°, low 36°.
Pressure30.42 inHg
Wind4.9 mph NE
Humidity84%
Visibility—
Dew point42°
Wed, 2855° / 39°0.08
55 °
Decatur, Wednesday, 28 October
Light rain. High 55°, low 39°.
Pressure30.15 inHg
Wind11.6 mph SW
Humidity68%
Visibility—
Dew point37°
Thu, 2947° / 31°0.04
47 °
Decatur, Thursday, 29 October
Light rain. High 47°, low 31°.
Pressure30.21 inHg
Wind11.1 mph NW
Humidity70%
Visibility—
Dew point32°
Fri, 3052° / 29°0
52 °
Decatur, Friday, 30 October
Clear. High 52°, low 29°.
Pressure30.33 inHg
Wind5.2 mph W
Humidity40%
Visibility—
Dew point21°
Sat, 3159° / 35°0
59 °
Decatur, Saturday, 31 October
Clear. High 59°, low 35°.
Pressure30.42 inHg
Wind5.7 mph S
Humidity39%
Visibility—
Dew point26°
Sun, 0160° / 37°0
60 °
Decatur, Sunday, 1 November
Mostly clear. High 60°, low 37°.
Pressure30.39 inHg
Wind8.5 mph S
Humidity42%
Visibility—
Dew point29°
Mon, 0251° / 39°0.17
51 °
Decatur, Monday, 2 November
Rain. High 51°, low 39°.
Pressure30.03 inHg
Wind13.7 mph SW
Humidity57%
Visibility—
Dew point35°
Tue, 0342° / 31°0.16
42 °
Decatur, Tuesday, 3 November
Snow. High 42°, low 31°.
Pressure29.80 inHg
Wind22.2 mph W
Humidity91%
Visibility—
Dew point31°
Wed, 0432° / 25°0.16
32 °
Decatur, Wednesday, 4 November
Snow. High 32°, low 25°.
Pressure30.03 inHg
Wind18.6 mph W
Humidity75%
Visibility—
Dew point23°
Thu, 0546° / 38°0.23
46 °
Decatur, Thursday, 5 November
Light rain. High 46°, low 38°.
Pressure29.80 inHg
Wind23.8 mph S
Humidity60%
Visibility—
Dew point31°
Fri, 0643° / 35°0.05
43 °
Decatur, Friday, 6 November
Snow. High 43°, low 35°.
Pressure30.00 inHg
Wind15.1 mph W
Humidity82%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0745° / 33°0.08
45 °
Decatur, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.08 in
Chance of precipitation38%
Record high67° (1975)
Record low6° (1962)
Sun, 0845° / 32°0.11
45 °
Decatur, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.11 in
Chance of precipitation32%
Record high65° (2020)
Record low17° (2002)
Mon, 0946° / 32°0.12
46 °
Decatur, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.12 in
Chance of precipitation33%
Record high67° (2020)
Record low16° (1971)
Tue, 1046° / 32°0.1
46 °
Decatur, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.1 in
Chance of precipitation52%
Record high68° (2020)
Record low15° (2017)
Wed, 1144° / 32°0.14
44 °
Decatur, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.14 in
Chance of precipitation47%
Record high64° (2022)
Record low11° (2017)
Thu, 1243° / 30°0.15
43 °
Decatur, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low30°
Average precipitation0.15 in
Chance of precipitation45%
Record high64° (1964)
Record low14° (2019)
Fri, 1341° / 28°0.12
41 °
Decatur, Friday, 13 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.12 in
Chance of precipitation48%
Record high60° (1985)
Record low10° (2019)
Sat, 1442° / 29°0.13
42 °
Decatur, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.13 in
Chance of precipitation35%
Record high62° (1989)
Record low11° (1986)
Sun, 1542° / 29°0.13
42 °
Decatur, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.13 in
Chance of precipitation45%
Record high62° (1993)
Record low12° (1967)
Mon, 1642° / 29°0.1
42 °
Decatur, Monday, 16 November
Climate normal for this date — 60-year average.
Average high42°
Average low29°
Average precipitation0.1 in
Chance of precipitation32%
Record high60° (1990)
Record low10° (1967)
Tue, 1741° / 28°0.11
41 °
Decatur, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.11 in
Chance of precipitation40%
Record high60° (2006)
Record low6° (1972)
Wed, 1841° / 28°0.09
41 °
Decatur, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.09 in
Chance of precipitation33%
Record high61° (2021)
Record low11° (1972)
Thu, 1941° / 28°0.07
41 °
Decatur, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.07 in
Chance of precipitation28%
Record high61° (1985)
Record low8° (1972)
Fri, 2041° / 28°0.15
41 °
Decatur, Friday, 20 November
Climate normal for this date — 60-year average.
Average high41°
Average low28°
Average precipitation0.15 in
Chance of precipitation45%
Record high66° (1991)
Record low-3° (1986)
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 Decatur, 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 Decatur, 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.