Monthly outlook for Grout Mill, NY: average high 56.5°, average low 42°. That is 1° above the climate normal for October. Precipitation is expected on 6 days (about 1.8 inches), against a normal of 7 days and 2.4 inches. The warmest day looks like 16 October (71.5°), the coolest 28 October (32.8°).
56.5°/42°
Average high / low
+1°
Above normal
6 / 7
Wet days / normal
1.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
57.9°
55.7°
+1.2°
24 October – 2 November
54.2°
52.7°
+0.8°
3 November – 12 November
at normal
48.3°
—
October records over 66 years
82.4°1 October 2019All-time high
24.8°20 October 1972All-time low
Climate normals and records are computed from the nearest reference point — Groton (11 mi).
Thu, 1559° / 46°0
59 °
Grout Mill, Thursday, 15 October
Overcast. High 59°, low 46°.
Pressure30.24 inHg
Wind1.4 mph NE
Humidity66%
Visibility6.2 mi
Dew point40°
Fri, 1671° / 47°0.6
71 °
Grout Mill, Friday, 16 October
Rain. High 71°, low 47°.
Pressure29.62 inHg
Wind18 mph SW
Humidity83%
Visibility6.2 mi
Dew point62°
Sat, 1746° / 37°0.02
46 °
Grout Mill, Saturday, 17 October
Light rain. High 46°, low 37°.
Pressure30.30 inHg
Wind14.2 mph N
Humidity67%
Visibility6.2 mi
Dew point29°
Sun, 1853° / 36°0
53 °
Grout Mill, Sunday, 18 October
Clear. High 53°, low 36°.
Pressure30.56 inHg
Wind4.6 mph S
Humidity58%
Visibility6.2 mi
Dew point34°
Mon, 1958° / 39°0
58 °
Grout Mill, Monday, 19 October
Clear. High 58°, low 39°.
Pressure30.45 inHg
Wind6.3 mph NW
Humidity49%
Visibility—
Dew point34°
Tue, 2060° / 44°0
60 °
Grout Mill, Tuesday, 20 October
Overcast. High 60°, low 44°.
Pressure30.36 inHg
Wind9.2 mph NW
Humidity75%
Visibility—
Dew point46°
Wed, 2157° / 40°0
57 °
Grout Mill, Wednesday, 21 October
Clear. High 57°, low 40°.
Pressure30.45 inHg
Wind6.7 mph SE
Humidity52%
Visibility—
Dew point34°
Thu, 2259° / 41°0.05
59 °
Grout Mill, Thursday, 22 October
Light rain. High 59°, low 41°.
Pressure30.30 inHg
Wind16.5 mph S
Humidity75%
Visibility—
Dew point43°
Fri, 2354° / 51°0.5
54 °
Grout Mill, Friday, 23 October
Rain. High 54°, low 51°.
Pressure30.12 inHg
Wind10.8 mph S
Humidity97%
Visibility—
Dew point51°
Sat, 2463° / 52°0
63 °
Grout Mill, Saturday, 24 October
Overcast. High 63°, low 52°.
Pressure30.27 inHg
Wind17.5 mph S
Humidity85%
Visibility—
Dew point53°
Sun, 2561° / 44°0.28
61 °
Grout Mill, Sunday, 25 October
Rain. High 61°, low 44°.
Pressure30.12 inHg
Wind19.1 mph S
Humidity84%
Visibility—
Dew point54°
Mon, 2649° / 37°0.26
49 °
Grout Mill, Monday, 26 October
Rain. High 49°, low 37°.
Pressure30.21 inHg
Wind14 mph W
Humidity74%
Visibility—
Dew point37°
Tue, 2746° / 33°0
46 °
Grout Mill, Tuesday, 27 October
Mostly clear. High 46°, low 33°.
Pressure30.39 inHg
Wind8.9 mph NW
Humidity64%
Visibility—
Dew point29°
Wed, 2851° / 33°0
51 °
Grout Mill, Wednesday, 28 October
Overcast. High 51°, low 33°.
Pressure30.27 inHg
Wind10.3 mph S
Humidity58%
Visibility—
Dew point29°
Thu, 2956° / 38°0
56 °
Grout Mill, Thursday, 29 October
Overcast. High 56°, low 38°.
Pressure30.12 inHg
Wind9.7 mph SW
Humidity58%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3051° / 38°0.09
51 °
Grout Mill, Friday, 30 October
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.09 in
Chance of precipitation27%
Record high73° (2024)
Record low29° (1990)
Sat, 3152° / 38°0.1
52 °
Grout Mill, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.1 in
Chance of precipitation33%
Record high75° (2024)
Record low26° (2008)
Sun, 0153° / 39°0.12
53 °
Grout Mill, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.12 in
Chance of precipitation40%
Record high69° (1974)
Record low29° (1992)
Mon, 0252° / 39°0.18
52 °
Grout Mill, Monday, 2 November
Climate normal for this date — 60-year average.
Average high52°
Average low39°
Average precipitation0.18 in
Chance of precipitation43%
Record high72° (1982)
Record low25° (1965)
Tue, 0352° / 38°0.09
52 °
Grout Mill, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high52°
Average low38°
Average precipitation0.09 in
Chance of precipitation47%
Record high71° (1982)
Record low28° (1988)
Wed, 0450° / 38°0.12
50 °
Grout Mill, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.12 in
Chance of precipitation33%
Record high70° (2015)
Record low26° (1991)
Thu, 0550° / 38°0.11
50 °
Grout Mill, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.11 in
Chance of precipitation47%
Record high70° (2022)
Record low23° (1991)
Fri, 0649° / 37°0.12
49 °
Grout Mill, Friday, 6 November
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.12 in
Chance of precipitation40%
Record high71° (2022)
Record low26° (1962)
Sat, 0748° / 36°0.1
48 °
Grout Mill, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.1 in
Chance of precipitation47%
Record high68° (1975)
Record low12° (1962)
Sun, 0848° / 35°0.15
48 °
Grout Mill, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.15 in
Chance of precipitation40%
Record high67° (2020)
Record low23° (1976)
Mon, 0948° / 35°0.11
48 °
Grout Mill, Monday, 9 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.11 in
Chance of precipitation37%
Record high69° (2020)
Record low19° (2019)
Tue, 1048° / 35°0.15
48 °
Grout Mill, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.15 in
Chance of precipitation52%
Record high69° (2020)
Record low19° (2017)
Wed, 1146° / 35°0.16
46 °
Grout Mill, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.16 in
Chance of precipitation58%
Record high64° (2012)
Record low17° (2017)
Thu, 1245° / 33°0.16
45 °
Grout Mill, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.16 in
Chance of precipitation50%
Record high66° (1964)
Record low17° (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 Grout Mill, 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 Grout Mill, 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.