Monthly outlook for St. John, ME: average high 44.4°, average low 29.8°. That is 1.5° below the climate normal for October. Precipitation is expected on 1 day (about 0.7 inches), against a normal of 6 days and 2.1 inches. The warmest day looks like 20 October (56.8°), the coolest 29 October (25°).
44.4°/29.8°
Average high / low
−1.5°
Below normal
1 / 6
Wet days / normal
0.7 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
45.3°
48.3°
-1.7°
25 October – 3 November
42.8°
44.4°
-0.8°
4 November – 13 November
at normal
39.8°
—
October records over 66 years
79.5°6 October 2025All-time high
14.9°30 October 1962All-time low
Climate normals and records are computed from the nearest reference point — Eagle Lake (10 mi).
Fri, 1644° / 31°0.59
44 °
St. John, Friday, 16 October
Snow. High 44°, low 31°.
Pressure29.88 inHg
Wind8.1 mph SE
Humidity95%
Visibility2.4 mi
Dew point34°
Sat, 1739° / 29°0.01
39 °
St. John, Saturday, 17 October
Light rain. High 39°, low 29°.
Pressure29.88 inHg
Wind16.3 mph NW
Humidity65%
Visibility6.2 mi
Dew point17°
Sun, 1842° / 26°0
42 °
St. John, Sunday, 18 October
Clear. High 42°, low 26°.
Pressure30.45 inHg
Wind9 mph NW
Humidity64%
Visibility6.2 mi
Dew point17°
Mon, 1956° / 36°0
56 °
St. John, Monday, 19 October
Clear. High 56°, low 36°.
Pressure30.42 inHg
Wind10.6 mph SW
Humidity56%
Visibility—
Dew point33°
Tue, 2057° / 34°0
57 °
St. John, Tuesday, 20 October
Clear. High 57°, low 34°.
Pressure30.30 inHg
Wind4.9 mph N
Humidity69%
Visibility—
Dew point40°
Wed, 2143° / 29°0
43 °
St. John, Wednesday, 21 October
Overcast. High 43°, low 29°.
Pressure30.39 inHg
Wind9.3 mph N
Humidity59%
Visibility—
Dew point29°
Thu, 2245° / 28°0.02
45 °
St. John, Thursday, 22 October
Light rain. High 45°, low 28°.
Pressure30.39 inHg
Wind8.3 mph W
Humidity59%
Visibility—
Dew point26°
Fri, 2340° / 31°0.03
40 °
St. John, Friday, 23 October
Snow. High 40°, low 31°.
Pressure30.18 inHg
Wind13.7 mph NW
Humidity75%
Visibility—
Dew point31°
Sat, 2441° / 27°0
41 °
St. John, Saturday, 24 October
Overcast. High 41°, low 27°.
Pressure30.62 inHg
Wind9 mph N
Humidity56%
Visibility—
Dew point22°
Sun, 2547° / 26°0
47 °
St. John, Sunday, 25 October
Clear. High 47°, low 26°.
Pressure30.53 inHg
Wind3.8 mph SE
Humidity48%
Visibility—
Dew point22°
Mon, 2648° / 30°0
48 °
St. John, Monday, 26 October
Overcast. High 48°, low 30°.
Pressure30.15 inHg
Wind5.7 mph S
Humidity44%
Visibility—
Dew point21°
Tue, 2745° / 33°0
45 °
St. John, Tuesday, 27 October
Clear. High 45°, low 33°.
Pressure29.88 inHg
Wind12.9 mph W
Humidity64%
Visibility—
Dew point32°
Wed, 2839° / 30°0.02
39 °
St. John, Wednesday, 28 October
Light snow. High 39°, low 30°.
Pressure29.83 inHg
Wind11.1 mph W
Humidity61%
Visibility—
Dew point24°
Thu, 2940° / 25°0.02
40 °
St. John, Thursday, 29 October
Light snow. High 40°, low 25°.
Pressure29.94 inHg
Wind9.6 mph W
Humidity51%
Visibility—
Dew point18°
Fri, 3038° / 29°0.02
38 °
St. John, Friday, 30 October
Light snow. High 38°, low 29°.
Pressure29.74 inHg
Wind10.6 mph SW
Humidity70%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3144° / 32°0.1
44 °
St. John, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high44°
Average low32°
Average precipitation0.1 in
Chance of precipitation25%
Record high68° (2024)
Record low18° (1997)
Sun, 0145° / 32°0.11
45 °
St. John, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high45°
Average low32°
Average precipitation0.11 in
Chance of precipitation33%
Record high62° (2019)
Record low19° (1972)
Mon, 0243° / 31°0.13
43 °
St. John, Monday, 2 November
Climate normal for this date — 60-year average.
Average high43°
Average low31°
Average precipitation0.13 in
Chance of precipitation38%
Record high60° (2001)
Record low13° (1993)
Tue, 0342° / 31°0.15
42 °
St. John, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.15 in
Chance of precipitation48%
Record high60° (1977)
Record low8° (1993)
Wed, 0442° / 30°0.09
42 °
St. John, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.09 in
Chance of precipitation42%
Record high62° (2022)
Record low9° (2002)
Thu, 0542° / 30°0.15
42 °
St. John, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high42°
Average low30°
Average precipitation0.15 in
Chance of precipitation35%
Record high67° (2022)
Record low16° (1965)
Fri, 0642° / 31°0.11
42 °
St. John, Friday, 6 November
Climate normal for this date — 60-year average.
Average high42°
Average low31°
Average precipitation0.11 in
Chance of precipitation38%
Record high70° (2022)
Record low13° (1962)
Sat, 0741° / 30°0.07
41 °
St. John, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high41°
Average low30°
Average precipitation0.07 in
Chance of precipitation33%
Record high61° (2022)
Record low5° (1962)
Sun, 0839° / 28°0.06
39 °
St. John, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.06 in
Chance of precipitation32%
Record high57° (1996)
Record low2° (2002)
Mon, 0939° / 28°0.07
39 °
St. John, Monday, 9 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.07 in
Chance of precipitation30%
Record high62° (2020)
Record low14° (1965)
Tue, 1039° / 28°0.1
39 °
St. John, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.1 in
Chance of precipitation40%
Record high67° (2020)
Record low10° (1965)
Wed, 1139° / 28°0.13
39 °
St. John, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high39°
Average low28°
Average precipitation0.13 in
Chance of precipitation45%
Record high66° (2020)
Record low14° (1976)
Thu, 1237° / 26°0.15
37 °
St. John, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high37°
Average low26°
Average precipitation0.15 in
Chance of precipitation33%
Record high61° (2020)
Record low9° (2004)
Fri, 1337° / 25°0.14
37 °
St. John, Friday, 13 November
Climate normal for this date — 60-year average.
Average high37°
Average low25°
Average precipitation0.14 in
Chance of precipitation47%
Record high55° (1982)
Record low0° (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 St. John, 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 St. John, 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.