Monthly outlook for Ermont Mill, MT: average high 45.3°, average low 29.6°. That is 1.5° above the climate normal for October. Precipitation is expected on 4 days (about 1.2 inches), against a normal of 5 days and 0.8 inches. The warmest day looks like 22 October (57.8°), the coolest 29 October (21.4°).
45.3°/29.6°
Average high / low
+1.5°
Above normal
4 / 5
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
41.6°
43.9°
-1.3°
1 November – 10 November
51.4°
39.1°
+6.8°
11 November – 20 November
at normal
35°
—
October records over 66 years
75°2 October 2010All-time high
-17.9°29 October 2019All-time low
Climate normals and records are computed from the nearest reference point — Maverick Mountain (14 mi).
Fri, 2339° / 28°0.89
39 °
Ermont Mill, Friday, 23 October
Snow. High 39°, low 28°.
Pressure29.80 inHg
Wind5 mph NW
Humidity97%
Visibility1.2 mi
Dew point37°
Sat, 2438° / 24°0.01
38 °
Ermont Mill, Saturday, 24 October
Light snow. High 38°, low 24°.
Pressure30.33 inHg
Wind2.3 mph S
Humidity93%
Visibility6.2 mi
Dew point27°
Sun, 2540° / 29°0
40 °
Ermont Mill, Sunday, 25 October
Clear. High 40°, low 29°.
Pressure30.18 inHg
Wind2.5 mph SE
Humidity72%
Visibility6.2 mi
Dew point23°
Mon, 2641° / 29°0
41 °
Ermont Mill, Monday, 26 October
Overcast. High 41°, low 29°.
Pressure30.15 inHg
Wind3.7 mph S
Humidity75%
Visibility—
Dew point30°
Tue, 2736° / 30°0.17
36 °
Ermont Mill, Tuesday, 27 October
Snow. High 36°, low 30°.
Pressure29.91 inHg
Wind8.4 mph W
Humidity81%
Visibility—
Dew point30°
Wed, 2833° / 24°0.07
33 °
Ermont Mill, Wednesday, 28 October
Light snow. High 33°, low 24°.
Pressure30.39 inHg
Wind9.3 mph E
Humidity73%
Visibility—
Dew point22°
Thu, 2941° / 21°0
41 °
Ermont Mill, Thursday, 29 October
Overcast. High 41°, low 21°.
Pressure30.15 inHg
Wind2.9 mph NE
Humidity54%
Visibility—
Dew point18°
Fri, 3047° / 33°0
47 °
Ermont Mill, Friday, 30 October
Overcast. High 47°, low 33°.
Pressure29.77 inHg
Wind15 mph W
Humidity46%
Visibility—
Dew point24°
Sat, 3142° / 28°0
42 °
Ermont Mill, Saturday, 31 October
Mostly clear. High 42°, low 28°.
Pressure29.85 inHg
Wind11.1 mph NW
Humidity51%
Visibility—
Dew point22°
Sun, 0146° / 28°0
46 °
Ermont Mill, Sunday, 1 November
Mostly clear. High 46°, low 28°.
Pressure30.03 inHg
Wind8 mph SW
Humidity42%
Visibility—
Dew point17°
Mon, 0249° / 30°0
49 °
Ermont Mill, Monday, 2 November
Overcast. High 49°, low 30°.
Pressure30.24 inHg
Wind7.9 mph W
Humidity27%
Visibility—
Dew point10°
Tue, 0353° / 33°0
53 °
Ermont Mill, Tuesday, 3 November
Clear. High 53°, low 33°.
Pressure30.15 inHg
Wind6.3 mph S
Humidity21%
Visibility—
Dew point7°
Wed, 0454° / 32°0
54 °
Ermont Mill, Wednesday, 4 November
Clear. High 54°, low 32°.
Pressure29.97 inHg
Wind18.9 mph SW
Humidity32%
Visibility—
Dew point17°
Thu, 0553° / 33°0
53 °
Ermont Mill, Thursday, 5 November
Clear. High 53°, low 33°.
Pressure29.97 inHg
Wind12.5 mph SW
Humidity53%
Visibility—
Dew point27°
Fri, 0654° / 35°0
54 °
Ermont Mill, Friday, 6 November
Overcast. High 54°, low 35°.
Pressure29.85 inHg
Wind14 mph S
Humidity66%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0739° / 22°0.04
39 °
Ermont Mill, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high39°
Average low22°
Average precipitation0.04 in
Chance of precipitation40%
Record high56° (1999)
Record low-8° (2000)
Sun, 0838° / 20°0.07
38 °
Ermont Mill, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high38°
Average low20°
Average precipitation0.07 in
Chance of precipitation40%
Record high55° (2016)
Record low-4° (1994)
Mon, 0937° / 20°0.06
37 °
Ermont Mill, Monday, 9 November
Climate normal for this date — 60-year average.
Average high37°
Average low20°
Average precipitation0.06 in
Chance of precipitation32%
Record high57° (2016)
Record low-5° (1960)
Tue, 1036° / 19°0.04
36 °
Ermont Mill, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high36°
Average low19°
Average precipitation0.04 in
Chance of precipitation32%
Record high57° (2025)
Record low-8° (1986)
Wed, 1136° / 17°0.04
36 °
Ermont Mill, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high36°
Average low17°
Average precipitation0.04 in
Chance of precipitation25%
Record high56° (2016)
Record low-13° (2000)
Thu, 1237° / 18°0.06
37 °
Ermont Mill, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high37°
Average low18°
Average precipitation0.06 in
Chance of precipitation27%
Record high57° (1999)
Record low-9° (2014)
Fri, 1336° / 19°0.04
36 °
Ermont Mill, Friday, 13 November
Climate normal for this date — 60-year average.
Average high36°
Average low19°
Average precipitation0.04 in
Chance of precipitation27%
Record high55° (1999)
Record low-8° (2009)
Sat, 1436° / 18°0.04
36 °
Ermont Mill, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high36°
Average low18°
Average precipitation0.04 in
Chance of precipitation32%
Record high56° (1999)
Record low-4° (1994)
Sun, 1536° / 16°0.03
36 °
Ermont Mill, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high36°
Average low16°
Average precipitation0.03 in
Chance of precipitation20%
Record high55° (1999)
Record low-8° (2014)
Mon, 1635° / 17°0.04
35 °
Ermont Mill, Monday, 16 November
Climate normal for this date — 60-year average.
Average high35°
Average low17°
Average precipitation0.04 in
Chance of precipitation30%
Record high50° (1999)
Record low-12° (1961)
Tue, 1734° / 17°0.05
34 °
Ermont Mill, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high34°
Average low17°
Average precipitation0.05 in
Chance of precipitation37%
Record high51° (2008)
Record low-8° (1968)
Wed, 1834° / 16°0.05
34 °
Ermont Mill, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high34°
Average low16°
Average precipitation0.05 in
Chance of precipitation37%
Record high49° (2008)
Record low-14° (2022)
Thu, 1933° / 15°0.05
33 °
Ermont Mill, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high33°
Average low15°
Average precipitation0.05 in
Chance of precipitation30%
Record high45° (1989)
Record low-7° (1985)
Fri, 2033° / 15°0.04
33 °
Ermont Mill, Friday, 20 November
Climate normal for this date — 60-year average.
Average high33°
Average low15°
Average precipitation0.04 in
Chance of precipitation32%
Record high45° (2002)
Record low-16° (1977)
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 Ermont Mill, 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 Ermont Mill, 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.