Monthly outlook for Ermont Mill, MT: average high 44.3°, average low 25.8°. That is 0.3° below the climate normal for October. Precipitation is expected on 4 days (about 0.9 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 19 October (58.3°), the coolest 30 October (3.1°).
44.3°/25.8°
Average high / low
−0.3°
Below normal
4 / 4
Wet days / normal
0.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
18 October – 27 October
50°
46.9°
+1.7°
28 October – 6 November
34.8°
40.8°
-3.3°
7 November – 16 November
at normal
36.6°
—
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).
Mon, 1958° / 29°0
58 °
Ermont Mill, Monday, 19 October
Partly cloudy. High 58°, low 29°.
Pressure30.00 inHg
Wind5.5 mph S
Humidity50%
Visibility6.2 mi
Dew point30°
Tue, 2054° / 35°0
54 °
Ermont Mill, Tuesday, 20 October
Overcast. High 54°, low 35°.
Pressure30.06 inHg
Wind4.2 mph S
Humidity50%
Visibility6.2 mi
Dew point33°
Wed, 2153° / 39°0.01
53 °
Ermont Mill, Wednesday, 21 October
Light rain. High 53°, low 39°.
Pressure30.12 inHg
Wind6 mph S
Humidity70%
Visibility6.2 mi
Dew point40°
Thu, 2254° / 42°0.03
54 °
Ermont Mill, Thursday, 22 October
Light rain. High 54°, low 42°.
Pressure29.85 inHg
Wind9.4 mph S
Humidity63%
Visibility—
Dew point38°
Fri, 2341° / 26°0.13
41 °
Ermont Mill, Friday, 23 October
Snow. High 41°, low 26°.
Pressure29.88 inHg
Wind14 mph NW
Humidity87%
Visibility—
Dew point31°
Sat, 2448° / 25°0
48 °
Ermont Mill, Saturday, 24 October
Partly cloudy. High 48°, low 25°.
Pressure30.30 inHg
Wind7.8 mph NW
Humidity54%
Visibility—
Dew point23°
Sun, 2556° / 33°0
56 °
Ermont Mill, Sunday, 25 October
Overcast. High 56°, low 33°.
Pressure30.09 inHg
Wind10.6 mph S
Humidity45%
Visibility—
Dew point23°
Mon, 2645° / 34°0
45 °
Ermont Mill, Monday, 26 October
Overcast. High 45°, low 34°.
Pressure29.88 inHg
Wind7.6 mph NE
Humidity56%
Visibility—
Dew point26°
Tue, 2733° / 27°0.3
33 °
Ermont Mill, Tuesday, 27 October
Snow. High 33°, low 27°.
Pressure29.80 inHg
Wind9 mph W
Humidity86%
Visibility—
Dew point29°
Wed, 2839° / 19°0.02
39 °
Ermont Mill, Wednesday, 28 October
Light snow. High 39°, low 19°.
Pressure29.94 inHg
Wind12.7 mph SW
Humidity61%
Visibility—
Dew point19°
Thu, 2937° / 21°0.31
37 °
Ermont Mill, Thursday, 29 October
Snow. High 37°, low 21°.
Pressure29.62 inHg
Wind11.3 mph NW
Humidity59%
Visibility—
Dew point22°
Fri, 3025° / 3°0.06
25 °
Ermont Mill, Friday, 30 October
Light snow. High 25°, low 3°.
Pressure30.36 inHg
Wind7.4 mph W
Humidity80%
Visibility—
Dew point11°
Sat, 3132° / 11°0
32 °
Ermont Mill, Saturday, 31 October
Clear. High 32°, low 11°.
Pressure30.18 inHg
Wind8.1 mph W
Humidity70%
Visibility—
Dew point16°
Sun, 0134° / 14°0
34 °
Ermont Mill, Sunday, 1 November
Overcast. High 34°, low 14°.
Pressure30.12 inHg
Wind7 mph W
Humidity69%
Visibility—
Dew point17°
Mon, 0242° / 24°0
42 °
Ermont Mill, Monday, 2 November
Light snow. High 42°, low 24°.
Pressure29.91 inHg
Wind14.7 mph SW
Humidity95%
Visibility—
Dew point35°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 0341° / 23°0.05
41 °
Ermont Mill, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high41°
Average low23°
Average precipitation0.05 in
Chance of precipitation22%
Record high60° (1962)
Record low-7° (1991)
Wed, 0441° / 24°0.04
41 °
Ermont Mill, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high41°
Average low24°
Average precipitation0.04 in
Chance of precipitation35%
Record high56° (2010)
Record low-5° (1973)
Thu, 0540° / 24°0.05
40 °
Ermont Mill, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.05 in
Chance of precipitation35%
Record high57° (1980)
Record low-6° (1971)
Fri, 0639° / 23°0.04
39 °
Ermont Mill, Friday, 6 November
Climate normal for this date — 60-year average.
Average high39°
Average low23°
Average precipitation0.04 in
Chance of precipitation30%
Record high56° (1999)
Record low-1° (1971)
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)
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.