Monthly outlook for Chester, ME: average high 49.8°, average low 37°. That is 1.7° below the climate normal for October. Precipitation is expected on 6 days (about 3.7 inches), against a normal of 5 days and 2.2 inches. The warmest day looks like 19 October (60.7°), the coolest 28 October (31.1°).
49.8°/37°
Average high / low
−1.7°
Below normal
6 / 5
Wet days / normal
3.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
14 October – 23 October
53.6°
54°
-0.2°
24 October – 2 November
43.5°
50.1°
-3.7°
3 November – 12 November
at normal
45.9°
—
October records over 66 years
83.3°6 October 2025All-time high
23.7°31 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Winn (9 mi).
Thu, 1554° / 39°0
54 °
Chester, Thursday, 15 October
Clear. High 54°, low 39°.
Pressure30.09 inHg
Wind11.7 mph NW
Humidity45%
Visibility6.2 mi
Dew point30°
Fri, 1650° / 38°0.33
50 °
Chester, Friday, 16 October
Rain. High 50°, low 38°.
Pressure29.91 inHg
Wind7.4 mph SE
Humidity79%
Visibility3.0 mi
Dew point38°
Sat, 1750° / 36°0.01
50 °
Chester, Saturday, 17 October
Light rain. High 50°, low 36°.
Pressure29.80 inHg
Wind14.6 mph NW
Humidity53%
Visibility6.2 mi
Dew point26°
Sun, 1848° / 32°0
48 °
Chester, Sunday, 18 October
Clear. High 48°, low 32°.
Pressure30.45 inHg
Wind9.4 mph SW
Humidity59%
Visibility—
Dew point28°
Mon, 1961° / 37°0
61 °
Chester, Monday, 19 October
Mostly clear. High 61°, low 37°.
Pressure30.45 inHg
Wind9.2 mph SW
Humidity54%
Visibility—
Dew point34°
Tue, 2060° / 40°0
60 °
Chester, Tuesday, 20 October
Mostly clear. High 60°, low 40°.
Pressure30.15 inHg
Wind10.9 mph W
Humidity59%
Visibility—
Dew point42°
Wed, 2155° / 40°0
55 °
Chester, Wednesday, 21 October
Overcast. High 55°, low 40°.
Pressure30.18 inHg
Wind7.1 mph W
Humidity51%
Visibility—
Dew point34°
Thu, 2256° / 41°0.13
56 °
Chester, Thursday, 22 October
Light rain. High 56°, low 41°.
Pressure29.94 inHg
Wind12.6 mph S
Humidity79%
Visibility—
Dew point43°
Fri, 2349° / 39°0
49 °
Chester, Friday, 23 October
Overcast. High 49°, low 39°.
Pressure29.74 inHg
Wind8.4 mph NW
Humidity74%
Visibility—
Dew point36°
Sat, 2446° / 37°2.37
46 °
Chester, Saturday, 24 October
Heavy rain. High 46°, low 37°.
Pressure29.32 inHg
Wind17 mph N
Humidity93%
Visibility—
Dew point42°
Sun, 2542° / 37°0.07
42 °
Chester, Sunday, 25 October
Light rain. High 42°, low 37°.
Pressure29.50 inHg
Wind10.1 mph NW
Humidity98%
Visibility—
Dew point38°
Mon, 2646° / 34°0.11
46 °
Chester, Monday, 26 October
Light rain. High 46°, low 34°.
Pressure29.65 inHg
Wind7.6 mph W
Humidity83%
Visibility—
Dew point38°
Tue, 2742° / 33°0.01
42 °
Chester, Tuesday, 27 October
Light rain. High 42°, low 33°.
Pressure29.68 inHg
Wind7.8 mph SW
Humidity90%
Visibility—
Dew point38°
Wed, 2842° / 31°0
42 °
Chester, Wednesday, 28 October
Light rain. High 42°, low 31°.
Pressure29.65 inHg
Wind6.6 mph W
Humidity72%
Visibility—
Dew point32°
Thu, 2942° / 34°0
42 °
Chester, Thursday, 29 October
Overcast. High 42°, low 34°.
Pressure29.65 inHg
Wind8.6 mph NW
Humidity65%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 3048° / 35°0.1
48 °
Chester, Friday, 30 October
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.1 in
Chance of precipitation23%
Record high67° (1989)
Record low24° (1962)
Sat, 3149° / 36°0.11
49 °
Chester, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high49°
Average low36°
Average precipitation0.11 in
Chance of precipitation25%
Record high71° (2024)
Record low24° (2020)
Sun, 0150° / 37°0.12
50 °
Chester, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high50°
Average low37°
Average precipitation0.12 in
Chance of precipitation37%
Record high68° (2003)
Record low25° (1972)
Mon, 0248° / 36°0.15
48 °
Chester, Monday, 2 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.15 in
Chance of precipitation42%
Record high62° (2001)
Record low21° (2002)
Tue, 0348° / 36°0.2
48 °
Chester, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high48°
Average low36°
Average precipitation0.2 in
Chance of precipitation50%
Record high64° (2017)
Record low19° (1993)
Wed, 0447° / 35°0.07
47 °
Chester, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.07 in
Chance of precipitation33%
Record high66° (1990)
Record low22° (2020)
Thu, 0548° / 35°0.11
48 °
Chester, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high48°
Average low35°
Average precipitation0.11 in
Chance of precipitation32%
Record high69° (2022)
Record low23° (1965)
Fri, 0647° / 36°0.13
47 °
Chester, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low36°
Average precipitation0.13 in
Chance of precipitation40%
Record high69° (2022)
Record low24° (2023)
Sat, 0747° / 35°0.09
47 °
Chester, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low35°
Average precipitation0.09 in
Chance of precipitation35%
Record high68° (2022)
Record low14° (2002)
Sun, 0845° / 33°0.12
45 °
Chester, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.12 in
Chance of precipitation27%
Record high59° (1975)
Record low11° (2002)
Mon, 0945° / 33°0.09
45 °
Chester, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.09 in
Chance of precipitation30%
Record high62° (1996)
Record low21° (1992)
Tue, 1045° / 33°0.11
45 °
Chester, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.11 in
Chance of precipitation40%
Record high66° (2020)
Record low19° (1965)
Wed, 1145° / 33°0.13
45 °
Chester, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high45°
Average low33°
Average precipitation0.13 in
Chance of precipitation40%
Record high65° (2020)
Record low21° (2017)
Thu, 1243° / 32°0.13
43 °
Chester, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high43°
Average low32°
Average precipitation0.13 in
Chance of precipitation37%
Record high64° (2022)
Record low22° (1976)
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 Chester, 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 Chester, 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.