Monthly outlook for Butte, MT: average high 52.6°, average low 31.6°. That is 2.3° above the climate normal for October. Precipitation is expected on 2 days (about 0.8 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 18 October (63.9°), the coolest 14 October (15°).
52.6°/31.6°
Average high / low
+2.3°
Above normal
2 / 4
Wet days / normal
0.8 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
11 October – 20 October
49.4°
49.5°
-0.1°
21 October – 30 October
58°
45.2°
+7.1°
31 October – 9 November
at normal
39.8°
—
October records over 66 years
77°3 October 2010All-time high
-16.2°31 October 2002All-time low
Climate normals and records are computed from the nearest reference point — Walkerville (11 mi).
Mon, 1235° / 25°0.05
35 °
Butte, Monday, 12 October
Snow. High 35°, low 25°.
Pressure30.09 inHg
Wind2.2 mph E
Humidity95%
Visibility6.2 mi
Dew point26°
Tue, 1338° / 19°0
38 °
Butte, Tuesday, 13 October
Clear. High 38°, low 19°.
Pressure30.15 inHg
Wind0.8 mph SE
Humidity86%
Visibility6.2 mi
Dew point28°
Wed, 1444° / 15°0
44 °
Butte, Wednesday, 14 October
Clear. High 44°, low 15°.
Pressure30.18 inHg
Wind1.1 mph E
Humidity62%
Visibility6.2 mi
Dew point22°
Thu, 1549° / 31°0
49 °
Butte, Thursday, 15 October
Clear. High 49°, low 31°.
Pressure30.56 inHg
Wind0.4 mph SE
Humidity61%
Visibility6.2 mi
Dew point30°
Fri, 1659° / 30°0
59 °
Butte, Friday, 16 October
Clear. High 59°, low 30°.
Pressure30.39 inHg
Wind7.6 mph S
Humidity44%
Visibility—
Dew point28°
Sat, 1764° / 37°0
64 °
Butte, Saturday, 17 October
Overcast. High 64°, low 37°.
Pressure30.09 inHg
Wind11.7 mph SW
Humidity42%
Visibility—
Dew point33°
Sun, 1864° / 42°0
64 °
Butte, Sunday, 18 October
Overcast. High 64°, low 42°.
Pressure29.97 inHg
Wind13.6 mph W
Humidity36%
Visibility—
Dew point29°
Mon, 1961° / 45°0
61 °
Butte, Monday, 19 October
Overcast. High 61°, low 45°.
Pressure29.85 inHg
Wind13.3 mph W
Humidity30%
Visibility—
Dew point26°
Tue, 2050° / 36°0
50 °
Butte, Tuesday, 20 October
Overcast. High 50°, low 36°.
Pressure30.03 inHg
Wind10.6 mph W
Humidity57%
Visibility—
Dew point29°
Wed, 2150° / 35°0
50 °
Butte, Wednesday, 21 October
Overcast. High 50°, low 35°.
Pressure30.03 inHg
Wind8.9 mph SW
Humidity41%
Visibility—
Dew point22°
Thu, 2254° / 31°0
54 °
Butte, Thursday, 22 October
Clear. High 54°, low 31°.
Pressure30.09 inHg
Wind8.8 mph SW
Humidity25%
Visibility—
Dew point13°
Fri, 2362° / 36°0
62 °
Butte, Friday, 23 October
Partly cloudy. High 62°, low 36°.
Pressure29.97 inHg
Wind10.7 mph SW
Humidity23%
Visibility—
Dew point15°
Sat, 2460° / 32°0
60 °
Butte, Saturday, 24 October
Overcast. High 60°, low 32°.
Pressure30.06 inHg
Wind16.5 mph W
Humidity25%
Visibility—
Dew point15°
Sun, 2559° / 30°0
59 °
Butte, Sunday, 25 October
Overcast. High 59°, low 30°.
Pressure30.33 inHg
Wind5.1 mph SW
Humidity20%
Visibility—
Dew point9°
Mon, 2663° / 37°0
63 °
Butte, Monday, 26 October
Partly cloudy. High 63°, low 37°.
Pressure30.03 inHg
Wind15.9 mph W
Humidity23%
Visibility—
Dew point17°
From day 17 onward the outlook is built from 60-year climate statistics
Tue, 2745° / 25°0.03
45 °
Butte, Tuesday, 27 October
Climate normal for this date — 60-year average.
Average high45°
Average low25°
Average precipitation0.03 in
Chance of precipitation15%
Record high61° (2024)
Record low3° (1996)
Wed, 2844° / 25°0.05
44 °
Butte, Wednesday, 28 October
Climate normal for this date — 60-year average.
Average high44°
Average low25°
Average precipitation0.05 in
Chance of precipitation28%
Record high59° (1987)
Record low-1° (1991)
Thu, 2942° / 24°0.04
42 °
Butte, Thursday, 29 October
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.04 in
Chance of precipitation23%
Record high63° (1962)
Record low-11° (2019)
Fri, 3041° / 24°0.03
41 °
Butte, Friday, 30 October
Climate normal for this date — 60-year average.
Average high41°
Average low24°
Average precipitation0.03 in
Chance of precipitation23%
Record high62° (1962)
Record low-7° (1991)
Sat, 3141° / 24°0.04
41 °
Butte, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high41°
Average low24°
Average precipitation0.04 in
Chance of precipitation23%
Record high58° (2014)
Record low-16° (2002)
Sun, 0141° / 24°0.04
41 °
Butte, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high41°
Average low24°
Average precipitation0.04 in
Chance of precipitation23%
Record high60° (2025)
Record low-11° (2002)
Mon, 0240° / 24°0.04
40 °
Butte, Monday, 2 November
Climate normal for this date — 60-year average.
Average high40°
Average low24°
Average precipitation0.04 in
Chance of precipitation32%
Record high58° (1981)
Record low-25° (1991)
Tue, 0341° / 24°0.04
41 °
Butte, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high41°
Average low24°
Average precipitation0.04 in
Chance of precipitation20%
Record high60° (1962)
Record low-11° (1991)
Wed, 0441° / 24°0.04
41 °
Butte, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high41°
Average low24°
Average precipitation0.04 in
Chance of precipitation30%
Record high55° (1976)
Record low-14° (1973)
Thu, 0541° / 23°0.04
41 °
Butte, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high41°
Average low23°
Average precipitation0.04 in
Chance of precipitation30%
Record high58° (2020)
Record low-16° (2003)
Fri, 0640° / 23°0.04
40 °
Butte, Friday, 6 November
Climate normal for this date — 60-year average.
Average high40°
Average low23°
Average precipitation0.04 in
Chance of precipitation33%
Record high57° (2012)
Record low-2° (2003)
Sat, 0739° / 22°0.04
39 °
Butte, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high39°
Average low22°
Average precipitation0.04 in
Chance of precipitation27%
Record high54° (2010)
Record low-11° (2000)
Sun, 0838° / 21°0.06
38 °
Butte, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high38°
Average low21°
Average precipitation0.06 in
Chance of precipitation37%
Record high56° (2016)
Record low-8° (1994)
Mon, 0937° / 20°0.04
37 °
Butte, Monday, 9 November
Climate normal for this date — 60-year average.
Average high37°
Average low20°
Average precipitation0.04 in
Chance of precipitation28%
Record high58° (2016)
Record low-11° (2020)
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 Butte, 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 Butte, 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.