Monthly outlook for St. Marie, MT: average high 48.2°, average low 34.5°. That is 1.6° above the climate normal for October. Precipitation is expected on 1 day (about 0.2 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 9 November (60.3°), the coolest 30 October (25.7°).
48.2°/34.5°
Average high / low
+1.6°
Above normal
1 / 2
Wet days / normal
0.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
25 October – 3 November
45.8°
47°
-0.7°
4 November – 13 November
52.1°
40.8°
+6.3°
14 November – 23 November
at normal
36.5°
—
October records over 66 years
86.2°2 October 1997All-time high
-4.4°30 October 1991All-time low
Mon, 2643° / 29°0
43 °
St. Marie, Monday, 26 October
Overcast. High 43°, low 29°.
Pressure30.36 inHg
Wind16.2 mph SE
Humidity69%
Visibility6.2 mi
Dew point27°
Tue, 2735° / 31°0.17
35 °
St. Marie, Tuesday, 27 October
Snow. High 35°, low 31°.
Pressure29.88 inHg
Wind10.2 mph SE
Humidity86%
Visibility6.2 mi
Dew point30°
Wed, 2850° / 30°0.02
50 °
St. Marie, Wednesday, 28 October
Light rain. High 50°, low 30°.
Pressure29.94 inHg
Wind12.6 mph W
Humidity63%
Visibility6.2 mi
Dew point34°
Thu, 2941° / 31°0
41 °
St. Marie, Thursday, 29 October
Overcast. High 41°, low 31°.
Pressure30.24 inHg
Wind12.8 mph NW
Humidity80%
Visibility—
Dew point31°
Fri, 3042° / 26°0
42 °
St. Marie, Friday, 30 October
Partly cloudy. High 42°, low 26°.
Pressure30.33 inHg
Wind13.3 mph E
Humidity74%
Visibility—
Dew point28°
Sat, 3153° / 38°0
53 °
St. Marie, Saturday, 31 October
Partly cloudy. High 53°, low 38°.
Pressure30.00 inHg
Wind9.2 mph NE
Humidity50%
Visibility—
Dew point30°
Sun, 0158° / 43°0
58 °
St. Marie, Sunday, 1 November
Overcast. High 58°, low 43°.
Pressure29.83 inHg
Wind12.7 mph NE
Humidity55%
Visibility—
Dew point36°
Mon, 0248° / 37°0
48 °
St. Marie, Monday, 2 November
Light rain. High 48°, low 37°.
Pressure29.50 inHg
Wind21.5 mph NW
Humidity76%
Visibility—
Dew point41°
Tue, 0345° / 35°0
45 °
St. Marie, Tuesday, 3 November
Overcast. High 45°, low 35°.
Pressure30.03 inHg
Wind21.1 mph W
Humidity60%
Visibility—
Dew point29°
Wed, 0451° / 34°0
51 °
St. Marie, Wednesday, 4 November
Partly cloudy. High 51°, low 34°.
Pressure29.94 inHg
Wind7 mph E
Humidity48%
Visibility—
Dew point26°
Thu, 0553° / 39°0
53 °
St. Marie, Thursday, 5 November
Clear. High 53°, low 39°.
Pressure29.83 inHg
Wind10.9 mph E
Humidity41%
Visibility—
Dew point27°
Fri, 0650° / 41°0
50 °
St. Marie, Friday, 6 November
Overcast. High 50°, low 41°.
Pressure29.47 inHg
Wind18.4 mph E
Humidity45%
Visibility—
Dew point26°
Sat, 0751° / 37°0
51 °
St. Marie, Saturday, 7 November
Overcast. High 51°, low 37°.
Pressure29.50 inHg
Wind15.5 mph NW
Humidity59%
Visibility—
Dew point34°
Sun, 0847° / 33°0
47 °
St. Marie, Sunday, 8 November
Clear. High 47°, low 33°.
Pressure30.00 inHg
Wind9.6 mph NW
Humidity61%
Visibility—
Dew point29°
Mon, 0960° / 41°0
60 °
St. Marie, Monday, 9 November
Partly cloudy. High 60°, low 41°.
Pressure29.94 inHg
Wind8 mph SW
Humidity53%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 1038° / 23°0.03
38 °
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°0.02
38 °
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°0.03
39 °
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°0.02
40 °
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°0.03
40 °
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°0.02
39 °
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°0.02
40 °
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°0.02
36 °
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°0.02
38 °
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°0.02
36 °
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)
Fri, 2036° / 20°0.02
36 °
St. Marie, Friday, 20 November
Climate normal for this date — 60-year average.
Average high36°
Average low20°
Average precipitation0.02 in
Chance of precipitation13%
Record high57° (1968)
Record low-13° (1978)
Sat, 2134° / 19°0.02
34 °
St. Marie, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high34°
Average low19°
Average precipitation0.02 in
Chance of precipitation17%
Record high57° (1974)
Record low-20° (1996)
Sun, 2233° / 20°0.02
33 °
St. Marie, Sunday, 22 November
Climate normal for this date — 60-year average.
Average high33°
Average low20°
Average precipitation0.02 in
Chance of precipitation18%
Record high54° (2017)
Record low-10° (1996)
Mon, 2333° / 19°0.02
33 °
St. Marie, Monday, 23 November
Climate normal for this date — 60-year average.
Average high33°
Average low19°
Average precipitation0.02 in
Chance of precipitation13%
Record high61° (2017)
Record low-25° (1985)
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.