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As of 06:30 MDT

Weather in St. Marie, MT

36°Current weather

St. Marie, Wednesday, 21 October, 06:30

Clear. Feels like 30°. High 65°, low 33°.

Pressure30.18 inHg
Wind6.6 mph SE
Humidity79%
Visibility6.2 mi
Dew point30°

Monthly outlook for St. Marie, MT: average high 48.9°, average low 33.3°. That is 0.5° above the climate normal for October. Precipitation is expected on 6 days (about 1.2 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 22 October (69°), the coolest 5 November (27.6°).

48.9°/33.3°
Average high / low
+0.5°
Above normal
6 / 2
Wet days / normal
1.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
21 October – 30 October50.1°49.9°+0.1°
31 October – 9 November46.9°43.3°+2°
10 November – 19 Novemberat normal38.2°—

October records over 66 years

86.2°2 October 1997All-time high
-4.4°30 October 1991All-time low
Thu, 2269° / 37°0Clear
69 °Clear

St. Marie, Thursday, 22 October

Clear. High 69°, low 37°.

Pressure29.91 inHg
Wind2.6 mph SE
Humidity54%
Visibility6.2 mi
Dew point46°
Fri, 2367° / 37°0.18Rain
67 °Rain

St. Marie, Friday, 23 October

Rain. High 67°, low 37°.

Pressure29.59 inHg
Wind11.5 mph SE
Humidity67%
Visibility6.2 mi
Dew point52°
Sat, 2443° / 32°0.07Light rain
43 °Light rain

St. Marie, Saturday, 24 October

Light rain. High 43°, low 32°.

Pressure30.42 inHg
Wind11.2 mph NW
Humidity69%
Visibility6.2 mi
Dew point25°
Sun, 2545° / 29°0Partly cloudy
45 °Partly cloudy

St. Marie, Sunday, 25 October

Partly cloudy. High 45°, low 29°.

Pressure30.50 inHg
Wind11.6 mph E
Humidity62%
Visibility—
Dew point28°
Mon, 2646° / 30°0Clear
46 °Clear

St. Marie, Monday, 26 October

Clear. High 46°, low 30°.

Pressure30.45 inHg
Wind13.5 mph SE
Humidity62%
Visibility—
Dew point29°
Tue, 2738° / 32°0.28Snow
38 °Snow

St. Marie, Tuesday, 27 October

Snow. High 38°, low 32°.

Pressure30.18 inHg
Wind13.9 mph E
Humidity55%
Visibility—
Dew point23°
Wed, 2838° / 30°0.14Snow
38 °Snow

St. Marie, Wednesday, 28 October

Snow. High 38°, low 30°.

Pressure30.36 inHg
Wind14.9 mph NW
Humidity75%
Visibility—
Dew point27°
Thu, 2941° / 28°0Clear
41 °Clear

St. Marie, Thursday, 29 October

Clear. High 41°, low 28°.

Pressure30.27 inHg
Wind5.1 mph SW
Humidity53%
Visibility—
Dew point20°
Fri, 3048° / 32°0Clear
48 °Clear

St. Marie, Friday, 30 October

Clear. High 48°, low 32°.

Pressure29.94 inHg
Wind16.3 mph SE
Humidity42%
Visibility—
Dew point20°
Sat, 3150° / 37°0Clear
50 °Clear

St. Marie, Saturday, 31 October

Clear. High 50°, low 37°.

Pressure29.71 inHg
Wind6.9 mph S
Humidity46%
Visibility—
Dew point26°
Sun, 0156° / 41°0Clear
56 °Clear

St. Marie, Sunday, 1 November

Clear. High 56°, low 41°.

Pressure29.77 inHg
Wind8.7 mph S
Humidity52%
Visibility—
Dew point33°
Mon, 0259° / 44°0Mostly clear
59 °Mostly clear

St. Marie, Monday, 2 November

Mostly clear. High 59°, low 44°.

Pressure29.68 inHg
Wind10.5 mph NE
Humidity47%
Visibility—
Dew point34°
Tue, 0348° / 33°0.46Snow
48 °Snow

St. Marie, Tuesday, 3 November

Snow. High 48°, low 33°.

Pressure29.85 inHg
Wind30 mph NE
Humidity82%
Visibility—
Dew point36°
Wed, 0432° / 30°0.08Light snow
32 °Light snow

St. Marie, Wednesday, 4 November

Light snow. High 32°, low 30°.

Pressure30.21 inHg
Wind23.8 mph NE
Humidity75%
Visibility—
Dew point25°
Thu, 0536° / 28°0Overcast
36 °Overcast

St. Marie, Thursday, 5 November

Overcast. High 36°, low 28°.

Pressure30.33 inHg
Wind13.8 mph NW
Humidity60%
Visibility—
Dew point20°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0643° / 26°0.02Climate normal
43 °Climate normal

St. Marie, Friday, 6 November

Climate normal for this date — 60-year average.

Average high43°
Average low26°
Average precipitation0.02 in
Chance of precipitation12%
Record high64° (2010)
Record low0° (1991)
Sat, 0742° / 27°0.02Climate normal
42 °Climate normal

St. Marie, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high42°
Average low27°
Average precipitation0.02 in
Chance of precipitation13%
Record high66° (1999)
Record low3° (1991)
Sun, 0841° / 26°0.04Climate normal
41 °Climate normal

St. Marie, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high41°
Average low26°
Average precipitation0.04 in
Chance of precipitation20%
Record high64° (1999)
Record low-6° (2000)
Mon, 0938° / 24°0.04Climate normal
38 °Climate normal

St. Marie, Monday, 9 November

Climate normal for this date — 60-year average.

Average high38°
Average low24°
Average precipitation0.04 in
Chance of precipitation20%
Record high61° (2016)
Record low0° (2000)
Tue, 1038° / 23°0.03Climate normal
38 °Climate normal

St. Marie, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high38°
Average low23°
Average precipitation0.03 in
Chance of precipitation20%
Record high62° (1989)
Record low-6° (2022)
Wed, 1138° / 22°0.02Climate normal
38 °Climate normal

St. Marie, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high38°
Average low22°
Average precipitation0.02 in
Chance of precipitation17%
Record high57° (1999)
Record low-12° (2022)
Thu, 1239° / 22°0.03Climate normal
39 °Climate normal

St. Marie, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high39°
Average low22°
Average precipitation0.03 in
Chance of precipitation15%
Record high71° (1999)
Record low-6° (2012)
Fri, 1340° / 25°0.02Climate normal
40 °Climate normal

St. Marie, Friday, 13 November

Climate normal for this date — 60-year average.

Average high40°
Average low25°
Average precipitation0.02 in
Chance of precipitation18%
Record high61° (1999)
Record low-6° (2014)
Sat, 1440° / 24°0.03Climate normal
40 °Climate normal

St. Marie, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high40°
Average low24°
Average precipitation0.03 in
Chance of precipitation18%
Record high62° (2001)
Record low-6° (2014)
Sun, 1539° / 23°0.02Climate normal
39 °Climate normal

St. Marie, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high39°
Average low23°
Average precipitation0.02 in
Chance of precipitation8%
Record high59° (2001)
Record low-9° (2014)
Mon, 1640° / 24°0.02Climate normal
40 °Climate normal

St. Marie, Monday, 16 November

Climate normal for this date — 60-year average.

Average high40°
Average low24°
Average precipitation0.02 in
Chance of precipitation15%
Record high60° (2001)
Record low-7° (1996)
Tue, 1736° / 22°0.02Climate normal
36 °Climate normal

St. Marie, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high36°
Average low22°
Average precipitation0.02 in
Chance of precipitation12%
Record high59° (2001)
Record low-5° (1996)
Wed, 1838° / 22°0.02Climate normal
38 °Climate normal

St. Marie, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high38°
Average low22°
Average precipitation0.02 in
Chance of precipitation15%
Record high63° (2008)
Record low-6° (1978)
Thu, 1936° / 21°0.02Climate normal
36 °Climate normal

St. Marie, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high36°
Average low21°
Average precipitation0.02 in
Chance of precipitation17%
Record high56° (1989)
Record low-8° (1978)

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. Marie, MT 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. Marie, MT 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.