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As of 00:21 MDT

Weather in St. Marie, MT

45°Current weather

St. Marie, Tuesday, 20 October, 00:21

Clear. Feels like 42°. High 63°, low 38°.

Pressure29.94 inHg
Wind5.5 mph SE
Humidity68%
Visibility6.2 mi
Dew point35°

Monthly outlook for St. Marie, MT: average high 52.9°, average low 37°. That is 2.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.3 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 23 October (67.8°), the coolest 27 October (24.1°).

52.9°/37°
Average high / low
+2.3°
Above normal
2 / 2
Wet days / normal
0.3 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
20 October – 29 October51.2°50.7°+0.3°
30 October – 8 November55.7°44.1°+6.4°
9 November – 18 Novemberat normal38.5°—

October records over 66 years

86.2°2 October 1997All-time high
-4.4°30 October 1991All-time low
Wed, 2160° / 35°0Partly cloudy
60 °Partly cloudy

St. Marie, Wednesday, 21 October

Partly cloudy. High 60°, low 35°.

Pressure30.18 inHg
Wind11.2 mph SE
Humidity55%
Visibility6.2 mi
Dew point38°
Thu, 2267° / 45°0Clear
67 °Clear

St. Marie, Thursday, 22 October

Clear. High 67°, low 45°.

Pressure29.91 inHg
Wind2.3 mph SE
Humidity60%
Visibility6.2 mi
Dew point48°
Fri, 2368° / 49°0.04Light rain
68 °Light rain

St. Marie, Friday, 23 October

Light rain. High 68°, low 49°.

Pressure29.62 inHg
Wind13 mph E
Humidity76%
Visibility6.2 mi
Dew point54°
Sat, 2445° / 35°0.27Rain
45 °Rain

St. Marie, Saturday, 24 October

Rain. High 45°, low 35°.

Pressure30.30 inHg
Wind22.3 mph NW
Humidity64%
Visibility—
Dew point29°
Sun, 2540° / 29°0Partly cloudy
40 °Partly cloudy

St. Marie, Sunday, 25 October

Partly cloudy. High 40°, low 29°.

Pressure30.56 inHg
Wind11.6 mph NE
Humidity64%
Visibility—
Dew point26°
Mon, 2638° / 29°0.03Light snow
38 °Light snow

St. Marie, Monday, 26 October

Light snow. High 38°, low 29°.

Pressure30.56 inHg
Wind9.4 mph N
Humidity56%
Visibility—
Dew point20°
Tue, 2736° / 24°0Clear
36 °Clear

St. Marie, Tuesday, 27 October

Clear. High 36°, low 24°.

Pressure30.74 inHg
Wind8.3 mph SE
Humidity55%
Visibility—
Dew point17°
Wed, 2845° / 27°0Clear
45 °Clear

St. Marie, Wednesday, 28 October

Clear. High 45°, low 27°.

Pressure30.30 inHg
Wind8 mph SE
Humidity35%
Visibility—
Dew point14°
Thu, 2949° / 31°0Clear
49 °Clear

St. Marie, Thursday, 29 October

Clear. High 49°, low 31°.

Pressure30.03 inHg
Wind11.3 mph SE
Humidity41%
Visibility—
Dew point20°
Fri, 3053° / 37°0Overcast
53 °Overcast

St. Marie, Friday, 30 October

Overcast. High 53°, low 37°.

Pressure29.85 inHg
Wind6.2 mph NW
Humidity41%
Visibility—
Dew point24°
Sat, 3154° / 38°0Overcast
54 °Overcast

St. Marie, Saturday, 31 October

Overcast. High 54°, low 38°.

Pressure29.83 inHg
Wind5.1 mph SE
Humidity44%
Visibility—
Dew point27°
Sun, 0158° / 43°0Clear
58 °Clear

St. Marie, Sunday, 1 November

Clear. High 58°, low 43°.

Pressure29.97 inHg
Wind15.3 mph W
Humidity41%
Visibility—
Dew point30°
Mon, 0258° / 41°0Partly cloudy
58 °Partly cloudy

St. Marie, Monday, 2 November

Partly cloudy. High 58°, low 41°.

Pressure30.06 inHg
Wind6.9 mph SW
Humidity41%
Visibility—
Dew point28°
Tue, 0359° / 46°0Overcast
59 °Overcast

St. Marie, Tuesday, 3 November

Overcast. High 59°, low 46°.

Pressure29.88 inHg
Wind9.6 mph W
Humidity33%
Visibility—
Dew point26°
Wed, 0453° / 47°0Overcast
53 °Overcast

St. Marie, Wednesday, 4 November

Overcast. High 53°, low 47°.

Pressure29.85 inHg
Wind5 mph NE
Humidity42%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
Thu, 0544° / 28°0.02Climate normal
44 °Climate normal

St. Marie, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high44°
Average low28°
Average precipitation0.02 in
Chance of precipitation17%
Record high69° (2020)
Record low-9° (2003)
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)

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.