Monthly outlook for Calais, ME: average high 50.8°, average low 35.3°. That is 1.8° below the climate normal for October. Precipitation is expected on 4 days (about 2.2 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 12 October (68.9°), the coolest 19 October (26.6°).
50.8°/35.3°
Average high / low
−1.8°
Below normal
4 / 5
Wet days / normal
2.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
51.4°
54.9°
-1.9°
21 October – 30 October
49.7°
51.4°
-1°
31 October – 9 November
at normal
48°
—
October records over 66 years
83.7°6 October 2025All-time high
25.7°24 October 1969All-time low
Mon, 1269° / 38°0.04
69 °
Calais, Monday, 12 October
Light rain. High 69°, low 38°.
Pressure29.68 inHg
Wind5.2 mph W
Humidity55%
Visibility6.2 mi
Dew point46°
Tue, 1349° / 35°0.31
49 °
Calais, Tuesday, 13 October
Rain. High 49°, low 35°.
Pressure30.15 inHg
Wind6.6 mph E
Humidity54%
Visibility6.2 mi
Dew point32°
Wed, 1453° / 44°0.56
53 °
Calais, Wednesday, 14 October
Rain. High 53°, low 44°.
Pressure29.80 inHg
Wind9 mph E
Humidity94%
Visibility6.2 mi
Dew point50°
Thu, 1554° / 40°0
54 °
Calais, Thursday, 15 October
Overcast. High 54°, low 40°.
Pressure29.94 inHg
Wind16.6 mph NW
Humidity54%
Visibility—
Dew point34°
Fri, 1645° / 36°0.88
45 °
Calais, Friday, 16 October
Rain. High 45°, low 36°.
Pressure29.94 inHg
Wind12.8 mph NE
Humidity63%
Visibility—
Dew point32°
Sat, 1753° / 39°0.38
53 °
Calais, Saturday, 17 October
Rain. High 53°, low 39°.
Pressure29.50 inHg
Wind17.7 mph NW
Humidity67%
Visibility—
Dew point41°
Sun, 1842° / 30°0
42 °
Calais, Sunday, 18 October
Overcast. High 42°, low 30°.
Pressure29.97 inHg
Wind14.7 mph N
Humidity58%
Visibility—
Dew point25°
Mon, 1946° / 27°0
46 °
Calais, Monday, 19 October
Clear. High 46°, low 27°.
Pressure30.50 inHg
Wind5.8 mph NW
Humidity40%
Visibility—
Dew point17°
Tue, 2048° / 33°0
48 °
Calais, Tuesday, 20 October
Overcast. High 48°, low 33°.
Pressure30.27 inHg
Wind4.8 mph W
Humidity56%
Visibility—
Dew point31°
Wed, 2150° / 36°0
50 °
Calais, Wednesday, 21 October
Mostly clear. High 50°, low 36°.
Pressure30.42 inHg
Wind8.2 mph N
Humidity58%
Visibility—
Dew point32°
Thu, 2250° / 31°0
50 °
Calais, Thursday, 22 October
Mostly clear. High 50°, low 31°.
Pressure30.47 inHg
Wind8.2 mph N
Humidity55%
Visibility—
Dew point28°
Fri, 2351° / 32°0
51 °
Calais, Friday, 23 October
Clear. High 51°, low 32°.
Pressure30.45 inHg
Wind4.7 mph NE
Humidity58%
Visibility—
Dew point31°
Sat, 2452° / 35°0
52 °
Calais, Saturday, 24 October
Overcast. High 52°, low 35°.
Pressure30.21 inHg
Wind3.3 mph SE
Humidity61%
Visibility—
Dew point33°
Sun, 2549° / 39°0
49 °
Calais, Sunday, 25 October
Partly cloudy. High 49°, low 39°.
Pressure29.88 inHg
Wind9.1 mph NE
Humidity63%
Visibility—
Dew point36°
Mon, 2647° / 38°0.01
47 °
Calais, Monday, 26 October
Light rain. High 47°, low 38°.
Pressure29.91 inHg
Wind7.6 mph NW
Humidity64%
Visibility—
Dew point31°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2750° / 39°0.12
50 °
Calais, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high50°
Average low39°
Average precipitation0.12 in
Chance of precipitation33%
Record high71° (1963)
Record low28° (2018)
Wed, 2851° / 38°0.17
51 °
Calais, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high51°
Average low38°
Average precipitation0.17 in
Chance of precipitation35%
Record high77° (2023)
Record low28° (1974)
Thu, 2950° / 38°0.13
50 °
Calais, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high50°
Average low38°
Average precipitation0.13 in
Chance of precipitation30%
Record high66° (1989)
Record low29° (1965)
Fri, 3048° / 37°0.12
48 °
Calais, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.12 in
Chance of precipitation28%
Record high65° (1989)
Record low28° (2002)
Sat, 3149° / 37°0.14
49 °
Calais, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high49°
Average low37°
Average precipitation0.14 in
Chance of precipitation28%
Record high72° (2024)
Record low27° (2020)
Sun, 0151° / 39°0.1
51 °
Calais, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high51°
Average low39°
Average precipitation0.1 in
Chance of precipitation32%
Record high69° (2024)
Record low26° (1972)
Mon, 0249° / 38°0.15
49 °
Calais, Monday, 2 November
Climate normal for this date — 60-year average.
Average high49°
Average low38°
Average precipitation0.15 in
Chance of precipitation37%
Record high60° (2001)
Record low23° (2002)
Tue, 0348° / 38°0.2
48 °
Calais, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.2 in
Chance of precipitation47%
Record high65° (2017)
Record low23° (2002)
Wed, 0448° / 37°0.07
48 °
Calais, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.07 in
Chance of precipitation32%
Record high65° (2022)
Record low23° (2002)
Thu, 0548° / 38°0.13
48 °
Calais, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low38°
Average precipitation0.13 in
Chance of precipitation37%
Record high69° (2022)
Record low23° (1965)
Fri, 0648° / 37°0.17
48 °
Calais, Friday, 6 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.17 in
Chance of precipitation40%
Record high70° (2024)
Record low27° (1973)
Sat, 0748° / 37°0.11
48 °
Calais, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high48°
Average low37°
Average precipitation0.11 in
Chance of precipitation38%
Record high70° (2022)
Record low17° (2002)
Sun, 0846° / 35°0.13
46 °
Calais, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.13 in
Chance of precipitation25%
Record high59° (2025)
Record low12° (2002)
Mon, 0946° / 35°0.11
46 °
Calais, Monday, 9 November
Climate normal for this date — 60-year average.
Average high46°
Average low35°
Average precipitation0.11 in
Chance of precipitation30%
Record high63° (2020)
Record low23° (1992)
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 Calais, 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 Calais, 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.