Monthly outlook for Grindstone, ME: average high 45.6°, average low 32.6°. That is 2.5° below the climate normal for October. Precipitation is expected on 9 days (about 2.7 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 12 October (56.8°), the coolest 18 October (25.3°).
45.6°/32.6°
Average high / low
−2.5°
Below normal
9 / 6
Wet days / normal
2.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 October – 21 October
46.5°
51.3°
-2.6°
22 October – 31 October
44.1°
47.2°
-1.7°
1 November – 10 November
at normal
43.2°
—
October records over 66 years
82°6 October 2025All-time high
15.3°30 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Mapleton (9 mi).
Tue, 1345° / 31°0.09
45 °
Grindstone, Tuesday, 13 October
Light rain. High 45°, low 31°.
Pressure30.18 inHg
Wind5.3 mph SE
Humidity60%
Visibility6.2 mi
Dew point28°
Wed, 1445° / 38°0.46
45 °
Grindstone, Wednesday, 14 October
Rain. High 45°, low 38°.
Pressure29.85 inHg
Wind5.9 mph E
Humidity98%
Visibility4.7 mi
Dew point43°
Thu, 1551° / 36°0
51 °
Grindstone, Thursday, 15 October
Partly cloudy. High 51°, low 36°.
Pressure30.06 inHg
Wind15.4 mph NW
Humidity48%
Visibility6.2 mi
Dew point27°
Fri, 1638° / 32°0.74
38 °
Grindstone, Friday, 16 October
Snow. High 38°, low 32°.
Pressure29.91 inHg
Wind9.7 mph E
Humidity91%
Visibility—
Dew point35°
Sat, 1739° / 29°0.24
39 °
Grindstone, Saturday, 17 October
Snow. High 39°, low 29°.
Pressure29.59 inHg
Wind17.8 mph NW
Humidity77%
Visibility—
Dew point31°
Sun, 1838° / 25°0
38 °
Grindstone, Sunday, 18 October
Partly cloudy. High 38°, low 25°.
Pressure30.24 inHg
Wind15.6 mph NW
Humidity52%
Visibility—
Dew point17°
Mon, 1955° / 33°0
55 °
Grindstone, Monday, 19 October
Mostly clear. High 55°, low 33°.
Pressure30.27 inHg
Wind11.1 mph SW
Humidity55%
Visibility—
Dew point31°
Tue, 2056° / 37°0
56 °
Grindstone, Tuesday, 20 October
Overcast. High 56°, low 37°.
Pressure30.09 inHg
Wind12.1 mph SW
Humidity67%
Visibility—
Dew point42°
Wed, 2143° / 29°0
43 °
Grindstone, Wednesday, 21 October
Overcast. High 43°, low 29°.
Pressure30.33 inHg
Wind14 mph NW
Humidity57%
Visibility—
Dew point25°
Thu, 2243° / 26°0
43 °
Grindstone, Thursday, 22 October
Clear. High 43°, low 26°.
Pressure30.62 inHg
Wind8.8 mph N
Humidity41%
Visibility—
Dew point15°
Fri, 2345° / 28°0.25
45 °
Grindstone, Friday, 23 October
Rain. High 45°, low 28°.
Pressure30.18 inHg
Wind13.5 mph NW
Humidity54%
Visibility—
Dew point27°
Sat, 2442° / 31°0.01
42 °
Grindstone, Saturday, 24 October
Light rain. High 42°, low 31°.
Pressure30.09 inHg
Wind14.7 mph NW
Humidity67%
Visibility—
Dew point30°
Sun, 2546° / 29°0.08
46 °
Grindstone, Sunday, 25 October
Light rain. High 46°, low 29°.
Pressure30.12 inHg
Wind12.9 mph S
Humidity55%
Visibility—
Dew point25°
Mon, 2645° / 40°0.31
45 °
Grindstone, Monday, 26 October
Light rain. High 45°, low 40°.
Pressure29.62 inHg
Wind11.7 mph S
Humidity98%
Visibility—
Dew point44°
Tue, 2743° / 40°0.42
43 °
Grindstone, Tuesday, 27 October
Rain. High 43°, low 40°.
Pressure29.15 inHg
Wind12.5 mph NW
Humidity94%
Visibility—
Dew point40°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2847° / 33°0.17
47 °
Grindstone, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high47°
Average low33°
Average precipitation0.17 in
Chance of precipitation48%
Record high69° (2023)
Record low15° (1976)
Thu, 2946° / 32°0.09
46 °
Grindstone, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.09 in
Chance of precipitation28%
Record high63° (1989)
Record low23° (1969)
Fri, 3044° / 31°0.06
44 °
Grindstone, Friday, 30 October
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.06 in
Chance of precipitation27%
Record high65° (1989)
Record low15° (1962)
Sat, 3146° / 32°0.1
46 °
Grindstone, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high46°
Average low32°
Average precipitation0.1 in
Chance of precipitation25%
Record high71° (2024)
Record low21° (2020)
Sun, 0146° / 33°0.11
46 °
Grindstone, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high46°
Average low33°
Average precipitation0.11 in
Chance of precipitation35%
Record high64° (2019)
Record low19° (1972)
Mon, 0245° / 32°0.14
45 °
Grindstone, Monday, 2 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.14 in
Chance of precipitation42%
Record high59° (2001)
Record low17° (1993)
Tue, 0344° / 32°0.18
44 °
Grindstone, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.18 in
Chance of precipitation45%
Record high60° (1967)
Record low10° (1993)
Wed, 0444° / 31°0.09
44 °
Grindstone, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.09 in
Chance of precipitation37%
Record high64° (2022)
Record low13° (2002)
Thu, 0544° / 31°0.13
44 °
Grindstone, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.13 in
Chance of precipitation33%
Record high69° (2022)
Record low18° (1965)
Fri, 0644° / 31°0.09
44 °
Grindstone, Friday, 6 November
Climate normal for this date — 60-year average.
Average high44°
Average low31°
Average precipitation0.09 in
Chance of precipitation37%
Record high70° (2022)
Record low19° (1962)
Sat, 0743° / 31°0.09
43 °
Grindstone, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.09 in
Chance of precipitation40%
Record high62° (2022)
Record low9° (2002)
Sun, 0841° / 29°0.09
41 °
Grindstone, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.09 in
Chance of precipitation32%
Record high58° (1996)
Record low-2° (2002)
Mon, 0941° / 29°0.07
41 °
Grindstone, Monday, 9 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.07 in
Chance of precipitation28%
Record high62° (2020)
Record low17° (1992)
Tue, 1041° / 29°0.1
41 °
Grindstone, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high41°
Average low29°
Average precipitation0.1 in
Chance of precipitation43%
Record high67° (2020)
Record low11° (2004)
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 Grindstone, ME 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 Grindstone, ME 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.