Monthly outlook for Butte, MT: average high 47.5°, average low 27.8°. That is 1.1° below the climate normal for October. Precipitation is expected on 6 days (about 1.6 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 9 October (73.6°), the coolest 13 October (16.2°).
47.5°/27.8°
Average high / low
−1.1°
Below normal
6 / 4
Wet days / normal
1.6 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 October – 18 October
48.4°
50.1°
-0.9°
19 October – 28 October
45.9°
47°
-0.6°
29 October – 7 November
at normal
40.6°
—
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).
Sat, 1051° / 27°0.48
51 °
Butte, Saturday, 10 October
Snow. High 51°, low 27°.
Pressure29.65 inHg
Wind6.4 mph NW
Humidity85%
Visibility3.0 mi
Dew point40°
Sun, 1132° / 24°0.62
32 °
Butte, Sunday, 11 October
Snow. High 32°, low 24°.
Pressure29.97 inHg
Wind6.2 mph N
Humidity95%
Visibility4.2 mi
Dew point26°
Mon, 1237° / 23°0.2
37 °
Butte, Monday, 12 October
Snow. High 37°, low 23°.
Pressure30.09 inHg
Wind1.9 mph E
Humidity94%
Visibility6.2 mi
Dew point25°
Tue, 1337° / 16°0
37 °
Butte, Tuesday, 13 October
Partly cloudy. High 37°, low 16°.
Pressure30.15 inHg
Wind1.5 mph E
Humidity87%
Visibility3.6 mi
Dew point27°
Wed, 1445° / 21°0
45 °
Butte, Wednesday, 14 October
Clear. High 45°, low 21°.
Pressure30.24 inHg
Wind2.5 mph S
Humidity68%
Visibility—
Dew point28°
Thu, 1544° / 22°0.11
44 °
Butte, Thursday, 15 October
Snow. High 44°, low 22°.
Pressure30.36 inHg
Wind5.1 mph S
Humidity66%
Visibility—
Dew point30°
Fri, 1645° / 30°0.02
45 °
Butte, Friday, 16 October
Light snow. High 45°, low 30°.
Pressure30.56 inHg
Wind7.7 mph S
Humidity67%
Visibility—
Dew point28°
Sat, 1761° / 34°0
61 °
Butte, Saturday, 17 October
Overcast. High 61°, low 34°.
Pressure30.06 inHg
Wind7.7 mph S
Humidity34%
Visibility—
Dew point24°
Sun, 1860° / 38°0
60 °
Butte, Sunday, 18 October
Overcast. High 60°, low 38°.
Pressure29.94 inHg
Wind7.2 mph SW
Humidity34%
Visibility—
Dew point24°
Mon, 1950° / 37°0.02
50 °
Butte, Monday, 19 October
Light rain. High 50°, low 37°.
Pressure29.85 inHg
Wind12.1 mph W
Humidity53%
Visibility—
Dew point29°
Tue, 2045° / 30°0.04
45 °
Butte, Tuesday, 20 October
Light snow. High 45°, low 30°.
Pressure29.74 inHg
Wind12.3 mph NW
Humidity45%
Visibility—
Dew point24°
Wed, 2147° / 26°0
47 °
Butte, Wednesday, 21 October
Overcast. High 47°, low 26°.
Pressure30.09 inHg
Wind11.5 mph S
Humidity41%
Visibility—
Dew point18°
Thu, 2242° / 27°0.09
42 °
Butte, Thursday, 22 October
Snow. High 42°, low 27°.
Pressure29.94 inHg
Wind11.5 mph W
Humidity55%
Visibility—
Dew point25°
Fri, 2344° / 24°0
44 °
Butte, Friday, 23 October
Mostly clear. High 44°, low 24°.
Pressure30.39 inHg
Wind13 mph W
Humidity53%
Visibility—
Dew point20°
Sat, 2448° / 27°0
48 °
Butte, Saturday, 24 October
Overcast. High 48°, low 27°.
Pressure30.30 inHg
Wind6 mph SW
Humidity33%
Visibility—
Dew point15°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2546° / 27°0.04
46 °
Butte, Sunday, 25 October
Climate normal for this date — 60-year average.
Average high46°
Average low27°
Average precipitation0.04 in
Chance of precipitation22%
Record high61° (1979)
Record low-13° (2020)
Mon, 2645° / 27°0.06
45 °
Butte, Monday, 26 October
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.06 in
Chance of precipitation28%
Record high60° (1999)
Record low-14° (2020)
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)
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.