Monthly outlook for Grout Mill, NY: average high 55°, average low 40.1°. That is 1° below the climate normal for October. Precipitation is expected on 4 days (about 2.0 inches), against a normal of 7 days and 2.3 inches. The warmest day looks like 13 October (67.5°), the coolest 19 October (25.9°).
55°/40.1°
Average high / low
−1°
Below normal
4 / 7
Wet days / normal
2.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
56.7°
58°
-0.7°
19 October – 28 October
52.2°
54.2°
-1.1°
29 October – 7 November
at normal
50.8°
—
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).
Sat, 1065° / 39°0
65 °
Grout Mill, Saturday, 10 October
Overcast. High 65°, low 39°.
Pressure30.45 inHg
Wind3.8 mph SE
Humidity52%
Visibility6.2 mi
Dew point40°
Sun, 1155° / 45°0.71
55 °
Grout Mill, Sunday, 11 October
Rain. High 55°, low 45°.
Pressure30.21 inHg
Wind15.4 mph SE
Humidity92%
Visibility2.2 mi
Dew point50°
Mon, 1262° / 54°0.02
62 °
Grout Mill, Monday, 12 October
Light rain. High 62°, low 54°.
Pressure29.85 inHg
Wind8.1 mph NW
Humidity87%
Visibility6.2 mi
Dew point55°
Tue, 1367° / 57°0.21
67 °
Grout Mill, Tuesday, 13 October
Light rain. High 67°, low 57°.
Pressure29.77 inHg
Wind8.9 mph SW
Humidity92%
Visibility4.4 mi
Dew point62°
Wed, 1455° / 52°0.02
55 °
Grout Mill, Wednesday, 14 October
Light rain. High 55°, low 52°.
Pressure29.97 inHg
Wind8.4 mph NW
Humidity96%
Visibility—
Dew point52°
Thu, 1557° / 45°0
57 °
Grout Mill, Thursday, 15 October
Overcast. High 57°, low 45°.
Pressure30.27 inHg
Wind13.9 mph S
Humidity50%
Visibility—
Dew point35°
Fri, 1659° / 46°0.91
59 °
Grout Mill, Friday, 16 October
Rain. High 59°, low 46°.
Pressure29.91 inHg
Wind24 mph S
Humidity91%
Visibility—
Dew point48°
Sat, 1747° / 36°0.02
47 °
Grout Mill, Saturday, 17 October
Light rain. High 47°, low 36°.
Pressure29.85 inHg
Wind17.5 mph W
Humidity63%
Visibility—
Dew point34°
Sun, 1838° / 26°0.11
38 °
Grout Mill, Sunday, 18 October
Snow. High 38°, low 26°.
Pressure30.36 inHg
Wind13.9 mph NW
Humidity89%
Visibility—
Dew point30°
Mon, 1945° / 26°0
45 °
Grout Mill, Monday, 19 October
Clear. High 45°, low 26°.
Pressure30.56 inHg
Wind4.9 mph NW
Humidity61%
Visibility—
Dew point25°
Tue, 2050° / 32°0
50 °
Grout Mill, Tuesday, 20 October
Overcast. High 50°, low 32°.
Pressure30.53 inHg
Wind4.9 mph SE
Humidity49%
Visibility—
Dew point26°
Wed, 2154° / 33°0
54 °
Grout Mill, Wednesday, 21 October
Clear. High 54°, low 33°.
Pressure30.45 inHg
Wind7 mph SE
Humidity52%
Visibility—
Dew point29°
Thu, 2256° / 36°0
56 °
Grout Mill, Thursday, 22 October
Overcast. High 56°, low 36°.
Pressure30.18 inHg
Wind11.9 mph SW
Humidity54%
Visibility—
Dew point32°
Fri, 2354° / 39°0
54 °
Grout Mill, Friday, 23 October
Clear. High 54°, low 39°.
Pressure30.06 inHg
Wind11.9 mph W
Humidity62%
Visibility—
Dew point36°
Sat, 2455° / 36°0
55 °
Grout Mill, Saturday, 24 October
Clear. High 55°, low 36°.
Pressure30.18 inHg
Wind8.5 mph S
Humidity66%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2554° / 41°0.15
54 °
Grout Mill, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high54°
Average low41°
Average precipitation0.15 in
Chance of precipitation42%
Record high75° (1963)
Record low29° (2002)
Mon, 2653° / 41°0.15
53 °
Grout Mill, Monday, 26 October
Climate normal for this date — 60-year average.
Average high53°
Average low41°
Average precipitation0.15 in
Chance of precipitation42%
Record high75° (1963)
Record low29° (1997)
Tue, 2753° / 40°0.15
53 °
Grout Mill, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high53°
Average low40°
Average precipitation0.15 in
Chance of precipitation40%
Record high74° (2023)
Record low26° (1976)
Wed, 2853° / 39°0.14
53 °
Grout Mill, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high53°
Average low39°
Average precipitation0.14 in
Chance of precipitation45%
Record high74° (1984)
Record low27° (1976)
Thu, 2951° / 38°0.12
51 °
Grout Mill, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.12 in
Chance of precipitation42%
Record high68° (1989)
Record low26° (1965)
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)
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.