As of 18:22 AST

Weather in Saint John, ME

42°Current weather

Saint John, Monday, 12 October, 18:22

Overcast. Feels like 36°. High 53°, low 34°.

Pressure29.88 inHg
Wind10.6 mph N
Humidity78%
Visibility6.2 mi
Dew point35°

Monthly outlook for Saint John, ME: average high 44.6°, average low 31.6°. That is 2.2° below the climate normal for October. Precipitation is expected on 7 days (about 2.6 inches), against a normal of 6 days and 2.0 inches. The warmest day looks like 24 October (57.3°), the coolest 19 October (17.9°).

44.6°/31.6°
Average high / low
−2.2°
Below normal
7 / 6
Wet days / normal
2.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
12 October – 21 October43.6°49.7°-3.4°
22 October – 31 October46.2°45.5°+0.4°
1 November – 10 Novemberat normal41.5°—

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 (13 mi).

Tue, 1345° / 29°0.02Light rain
45 °Light rain

Saint John, Tuesday, 13 October

Light rain. High 45°, low 29°.

Pressure30.15 inHg
Wind6.6 mph SE
Humidity65%
Visibility6.2 mi
Dew point26°
Wed, 1445° / 38°0.38Rain
45 °Rain

Saint John, Wednesday, 14 October

Rain. High 45°, low 38°.

Pressure29.80 inHg
Wind6.5 mph E
Humidity99%
Visibility5.3 mi
Dew point42°
Thu, 1548° / 35°0.01Light rain
48 °Light rain

Saint John, Thursday, 15 October

Light rain. High 48°, low 35°.

Pressure30.09 inHg
Wind14.9 mph NW
Humidity59%
Visibility6.2 mi
Dew point28°
Fri, 1639° / 35°0.69Snow
39 °Snow

Saint John, Friday, 16 October

Snow. High 39°, low 35°.

Pressure29.83 inHg
Wind5.1 mph SE
Humidity88%
Visibility3.8 mi
Dew point33°
Sat, 1737° / 29°0.14Snow
37 °Snow

Saint John, Saturday, 17 October

Snow. High 37°, low 29°.

Pressure29.68 inHg
Wind15.4 mph NW
Humidity86%
Visibility—
Dew point33°
Sun, 1835° / 18°0Light rain
35 °Light rain

Saint John, Sunday, 18 October

Light rain. High 35°, low 18°.

Pressure30.24 inHg
Wind12.4 mph W
Humidity82%
Visibility—
Dew point27°
Mon, 1942° / 18°0Overcast
42 °Overcast

Saint John, Monday, 19 October

Overcast. High 42°, low 18°.

Pressure30.53 inHg
Wind10.5 mph S
Humidity69%
Visibility—
Dew point24°
Tue, 2048° / 37°0Partly cloudy
48 °Partly cloudy

Saint John, Tuesday, 20 October

Partly cloudy. High 48°, low 37°.

Pressure30.30 inHg
Wind10 mph W
Humidity80%
Visibility—
Dew point38°
Wed, 2146° / 31°0.01Light rain
46 °Light rain

Saint John, Wednesday, 21 October

Light rain. High 46°, low 31°.

Pressure30.12 inHg
Wind12 mph NW
Humidity79%
Visibility—
Dew point38°
Thu, 2244° / 28°0Clear
44 °Clear

Saint John, Thursday, 22 October

Clear. High 44°, low 28°.

Pressure30.30 inHg
Wind8.5 mph NW
Humidity63%
Visibility—
Dew point27°
Fri, 2349° / 32°0.33Rain
49 °Rain

Saint John, Friday, 23 October

Rain. High 49°, low 32°.

Pressure30.09 inHg
Wind8.4 mph SW
Humidity96%
Visibility—
Dew point36°
Sat, 2457° / 41°0.49Rain
57 °Rain

Saint John, Saturday, 24 October

Rain. High 57°, low 41°.

Pressure29.44 inHg
Wind16.2 mph W
Humidity92%
Visibility—
Dew point54°
Sun, 2539° / 35°0.42Snow
39 °Snow

Saint John, Sunday, 25 October

Snow. High 39°, low 35°.

Pressure29.77 inHg
Wind8.1 mph E
Humidity98%
Visibility—
Dew point36°
Mon, 2641° / 32°0Overcast
41 °Overcast

Saint John, Monday, 26 October

Overcast. High 41°, low 32°.

Pressure30.24 inHg
Wind4.7 mph SW
Humidity80%
Visibility—
Dew point34°
Tue, 2747° / 34°0Clear
47 °Clear

Saint John, Tuesday, 27 October

Clear. High 47°, low 34°.

Pressure30.24 inHg
Wind6.6 mph NW
Humidity74%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2845° / 32°0.17Climate normal
45 °Climate normal

Saint John, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.17 in
Chance of precipitation50%
Record high66° (2023)
Record low17° (1976)
Thu, 2945° / 32°0.1Climate normal
45 °Climate normal

Saint John, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high45°
Average low32°
Average precipitation0.1 in
Chance of precipitation28%
Record high62° (1989)
Record low22° (1965)
Fri, 3043° / 31°0.08Climate normal
43 °Climate normal

Saint John, Friday, 30 October

Climate normal for this date — 60-year average.

Average high43°
Average low31°
Average precipitation0.08 in
Chance of precipitation27%
Record high63° (1989)
Record low15° (1962)
Sat, 3144° / 32°0.1Climate normal
44 °Climate normal

Saint 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°0.11Climate normal
45 °Climate normal

Saint 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°0.13Climate normal
43 °Climate normal

Saint 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°0.15Climate normal
42 °Climate normal

Saint 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°0.09Climate normal
42 °Climate normal

Saint 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°0.15Climate normal
42 °Climate normal

Saint 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°0.11Climate normal
42 °Climate normal

Saint 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°0.07Climate normal
41 °Climate normal

Saint 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°0.06Climate normal
39 °Climate normal

Saint 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°0.07Climate normal
39 °Climate normal

Saint 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°0.1Climate normal
39 °Climate normal

Saint 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)

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 Saint 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 Saint 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.