Monthly outlook for Square Butte, MT: average high 58.7°, average low 40.8°. That is 1.4° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 17 October (76.1°), the coolest 24 October (33.5°).
58.7°/40.8°
Average high / low
+1.4°
Above normal
3 / 4
Wet days / normal
0.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
60.3°
57.9°
+1.4°
25 October – 3 November
56°
52°
+2.3°
4 November – 13 November
at normal
46.5°
—
October records over 66 years
87.4°1 October 1992All-time high
-14.8°30 October 1991All-time low
Climate normals and records are computed from the nearest reference point — Geraldine (7 mi).
Fri, 1665° / 39°0
65 °
Square Butte, Friday, 16 October
Clear. High 65°, low 39°.
Pressure30.36 inHg
Wind3.4 mph NE
Humidity45%
Visibility6.2 mi
Dew point32°
Sat, 1776° / 41°0
76 °
Square Butte, Saturday, 17 October
Overcast. High 76°, low 41°.
Pressure29.91 inHg
Wind1.6 mph SE
Humidity31%
Visibility6.2 mi
Dew point39°
Sun, 1864° / 43°0
64 °
Square Butte, Sunday, 18 October
Mostly clear. High 64°, low 43°.
Pressure30.09 inHg
Wind9.9 mph SE
Humidity42%
Visibility6.2 mi
Dew point35°
Mon, 1964° / 39°0
64 °
Square Butte, Monday, 19 October
Overcast. High 64°, low 39°.
Pressure29.94 inHg
Wind2.8 mph E
Humidity55%
Visibility—
Dew point37°
Tue, 2064° / 42°0
64 °
Square Butte, Tuesday, 20 October
Overcast. High 64°, low 42°.
Pressure29.94 inHg
Wind6.8 mph W
Humidity53%
Visibility—
Dew point40°
Wed, 2164° / 45°0
64 °
Square Butte, Wednesday, 21 October
Overcast. High 64°, low 45°.
Pressure29.83 inHg
Wind9.2 mph E
Humidity45%
Visibility—
Dew point33°
Thu, 2262° / 50°0
62 °
Square Butte, Thursday, 22 October
Light rain. High 62°, low 50°.
Pressure29.65 inHg
Wind12.2 mph NW
Humidity44%
Visibility—
Dew point38°
Fri, 2350° / 39°0.23
50 °
Square Butte, Friday, 23 October
Snow. High 50°, low 39°.
Pressure30.12 inHg
Wind16.1 mph NW
Humidity96%
Visibility—
Dew point39°
Sat, 2447° / 33°0.01
47 °
Square Butte, Saturday, 24 October
Light snow. High 47°, low 33°.
Pressure30.50 inHg
Wind15.9 mph NW
Humidity42%
Visibility—
Dew point21°
Sun, 2553° / 37°0.07
53 °
Square Butte, Sunday, 25 October
Snow. High 53°, low 37°.
Pressure30.18 inHg
Wind16 mph NW
Humidity52%
Visibility—
Dew point29°
Mon, 2654° / 39°0.06
54 °
Square Butte, Monday, 26 October
Light rain. High 54°, low 39°.
Pressure30.33 inHg
Wind6.4 mph W
Humidity58%
Visibility—
Dew point33°
Tue, 2755° / 41°0
55 °
Square Butte, Tuesday, 27 October
Overcast. High 55°, low 41°.
Pressure30.15 inHg
Wind6.7 mph W
Humidity53%
Visibility—
Dew point32°
Wed, 2859° / 46°0
59 °
Square Butte, Wednesday, 28 October
Overcast. High 59°, low 46°.
Pressure29.91 inHg
Wind11.7 mph NW
Humidity50%
Visibility—
Dew point36°
Thu, 2956° / 40°0
56 °
Square Butte, Thursday, 29 October
Overcast. High 56°, low 40°.
Pressure30.15 inHg
Wind11.4 mph E
Humidity64%
Visibility—
Dew point39°
Fri, 3060° / 40°0
60 °
Square Butte, Friday, 30 October
Overcast. High 60°, low 40°.
Pressure30.09 inHg
Wind9.5 mph SE
Humidity58%
Visibility—
Dew point37°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3150° / 32°0.04
50 °
Square Butte, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high50°
Average low32°
Average precipitation0.04 in
Chance of precipitation22%
Record high72° (2008)
Record low1° (1984)
Sun, 0149° / 32°0.03
49 °
Square Butte, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high49°
Average low32°
Average precipitation0.03 in
Chance of precipitation17%
Record high75° (2025)
Record low-3° (1991)
Mon, 0250° / 32°0.03
50 °
Square Butte, Monday, 2 November
Climate normal for this date — 60-year average.
Average high50°
Average low32°
Average precipitation0.03 in
Chance of precipitation20%
Record high71° (2020)
Record low-14° (1991)
Tue, 0351° / 32°0.04
51 °
Square Butte, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high51°
Average low32°
Average precipitation0.04 in
Chance of precipitation18%
Record high72° (2020)
Record low-11° (1991)
Wed, 0450° / 32°0.05
50 °
Square Butte, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high50°
Average low32°
Average precipitation0.05 in
Chance of precipitation28%
Record high72° (2001)
Record low1° (2003)
Thu, 0549° / 31°0.06
49 °
Square Butte, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high49°
Average low31°
Average precipitation0.06 in
Chance of precipitation33%
Record high72° (1980)
Record low-14° (2003)
Fri, 0647° / 30°0.03
47 °
Square Butte, Friday, 6 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.03 in
Chance of precipitation22%
Record high72° (2010)
Record low-4° (2003)
Sat, 0747° / 30°0.02
47 °
Square Butte, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high47°
Average low30°
Average precipitation0.02 in
Chance of precipitation22%
Record high72° (2010)
Record low-8° (1973)
Sun, 0846° / 29°0.06
46 °
Square Butte, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.06 in
Chance of precipitation25%
Record high68° (1999)
Record low-5° (2003)
Mon, 0945° / 27°0.05
45 °
Square Butte, Monday, 9 November
Climate normal for this date — 60-year average.
Average high45°
Average low27°
Average precipitation0.05 in
Chance of precipitation22%
Record high71° (2016)
Record low0° (2022)
Tue, 1044° / 27°0.04
44 °
Square Butte, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high44°
Average low27°
Average precipitation0.04 in
Chance of precipitation23%
Record high68° (2025)
Record low1° (2022)
Wed, 1144° / 26°0.03
44 °
Square Butte, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high44°
Average low26°
Average precipitation0.03 in
Chance of precipitation25%
Record high69° (1990)
Record low-12° (1966)
Thu, 1246° / 28°0.03
46 °
Square Butte, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high46°
Average low28°
Average precipitation0.03 in
Chance of precipitation23%
Record high74° (1990)
Record low-16° (1986)
Fri, 1346° / 29°0.03
46 °
Square Butte, Friday, 13 November
Climate normal for this date — 60-year average.
Average high46°
Average low29°
Average precipitation0.03 in
Chance of precipitation17%
Record high71° (2025)
Record low-7° (1986)
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 Square 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 Square 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.