Monthly outlook for Sundance, MT: average high 48.3°, average low 34.4°. That is 0.7° below the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 17 October (66.5°), the coolest 30 October (26.9°).
48.3°/34.4°
Average high / low
−0.7°
Below normal
4 / 3
Wet days / normal
0.5 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
15 October – 24 October
55.7°
51.6°
+2.3°
25 October – 3 November
35.9°
45.2°
-5.2°
4 November – 13 November
at normal
40.2°
—
October records over 66 years
83.1°1 October 1992All-time high
-11.2°31 October 1984All-time low
Climate normals and records are computed from the nearest reference point — Hidden Lake Colony (4 mi).
Fri, 1661° / 33°0
61 °
Sundance, Friday, 16 October
Overcast. High 61°, low 33°.
Pressure30.27 inHg
Wind9.7 mph SW
Humidity32%
Visibility6.2 mi
Dew point29°
Sat, 1766° / 44°0
66 °
Sundance, Saturday, 17 October
Overcast. High 66°, low 44°.
Pressure29.85 inHg
Wind11 mph S
Humidity29%
Visibility6.2 mi
Dew point29°
Sun, 1858° / 37°0
58 °
Sundance, Sunday, 18 October
Clear. High 58°, low 37°.
Pressure30.06 inHg
Wind7.5 mph SW
Humidity43%
Visibility6.2 mi
Dew point31°
Mon, 1959° / 38°0
59 °
Sundance, Monday, 19 October
Overcast. High 59°, low 38°.
Pressure29.91 inHg
Wind3.2 mph SE
Humidity64%
Visibility6.2 mi
Dew point38°
Tue, 2064° / 40°0
64 °
Sundance, Tuesday, 20 October
Overcast. High 64°, low 40°.
Pressure29.97 inHg
Wind4.9 mph W
Humidity46%
Visibility—
Dew point35°
Wed, 2155° / 39°0.01
55 °
Sundance, Wednesday, 21 October
Light rain. High 55°, low 39°.
Pressure29.77 inHg
Wind10 mph SE
Humidity50%
Visibility—
Dew point30°
Thu, 2257° / 45°0
57 °
Sundance, Thursday, 22 October
Overcast. High 57°, low 45°.
Pressure29.65 inHg
Wind14.5 mph W
Humidity43%
Visibility—
Dew point31°
Fri, 2348° / 36°0.01
48 °
Sundance, Friday, 23 October
Light snow. High 48°, low 36°.
Pressure30.00 inHg
Wind13.1 mph W
Humidity44%
Visibility—
Dew point23°
Sat, 2441° / 30°0
41 °
Sundance, Saturday, 24 October
Overcast. High 41°, low 30°.
Pressure30.33 inHg
Wind8.9 mph NW
Humidity58%
Visibility—
Dew point23°
Sun, 2535° / 30°0.06
35 °
Sundance, Sunday, 25 October
Light snow. High 35°, low 30°.
Pressure30.39 inHg
Wind14.9 mph E
Humidity79%
Visibility—
Dew point28°
Mon, 2634° / 27°0.06
34 °
Sundance, Monday, 26 October
Light snow. High 34°, low 27°.
Pressure30.24 inHg
Wind8.1 mph E
Humidity83%
Visibility—
Dew point26°
Tue, 2734° / 32°0.15
34 °
Sundance, Tuesday, 27 October
Snow. High 34°, low 32°.
Pressure29.83 inHg
Wind13.4 mph SE
Humidity99%
Visibility—
Dew point34°
Wed, 2837° / 32°0.22
37 °
Sundance, Wednesday, 28 October
Snow. High 37°, low 32°.
Pressure29.71 inHg
Wind7.9 mph NW
Humidity84%
Visibility—
Dew point30°
Thu, 2939° / 27°0
39 °
Sundance, Thursday, 29 October
Overcast. High 39°, low 27°.
Pressure29.85 inHg
Wind8.2 mph NW
Humidity73%
Visibility—
Dew point26°
Fri, 3036° / 27°0
36 °
Sundance, Friday, 30 October
Overcast. High 36°, low 27°.
Pressure30.21 inHg
Wind12.1 mph NW
Humidity68%
Visibility—
Dew point24°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 3144° / 28°0.04
44 °
Sundance, Saturday, 31 October
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.04 in
Chance of precipitation20%
Record high64° (2008)
Record low-11° (1984)
Sun, 0143° / 28°0.04
43 °
Sundance, Sunday, 1 November
Climate normal for this date — 60-year average.
Average high43°
Average low28°
Average precipitation0.04 in
Chance of precipitation20%
Record high63° (2008)
Record low-20° (1984)
Mon, 0244° / 28°0.04
44 °
Sundance, Monday, 2 November
Climate normal for this date — 60-year average.
Average high44°
Average low28°
Average precipitation0.04 in
Chance of precipitation23%
Record high65° (1981)
Record low-17° (1991)
Tue, 0344° / 29°0.02
44 °
Sundance, Tuesday, 3 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.02 in
Chance of precipitation15%
Record high66° (1962)
Record low-6° (1991)
Wed, 0444° / 29°0.04
44 °
Sundance, Wednesday, 4 November
Climate normal for this date — 60-year average.
Average high44°
Average low29°
Average precipitation0.04 in
Chance of precipitation25%
Record high63° (2010)
Record low-3° (2017)
Thu, 0542° / 28°0.04
42 °
Sundance, Thursday, 5 November
Climate normal for this date — 60-year average.
Average high42°
Average low28°
Average precipitation0.04 in
Chance of precipitation25%
Record high68° (2010)
Record low-14° (2003)
Fri, 0641° / 26°0.04
41 °
Sundance, Friday, 6 November
Climate normal for this date — 60-year average.
Average high41°
Average low26°
Average precipitation0.04 in
Chance of precipitation25%
Record high65° (2010)
Record low-6° (1971)
Sat, 0740° / 27°0.04
40 °
Sundance, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high40°
Average low27°
Average precipitation0.04 in
Chance of precipitation23%
Record high61° (1999)
Record low-9° (1973)
Sun, 0840° / 25°0.04
40 °
Sundance, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high40°
Average low25°
Average precipitation0.04 in
Chance of precipitation20%
Record high63° (2016)
Record low-11° (2022)
Mon, 0939° / 24°0.05
39 °
Sundance, Monday, 9 November
Climate normal for this date — 60-year average.
Average high39°
Average low24°
Average precipitation0.05 in
Chance of precipitation23%
Record high64° (2016)
Record low-6° (1986)
Tue, 1038° / 24°0.04
38 °
Sundance, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high38°
Average low24°
Average precipitation0.04 in
Chance of precipitation25%
Record high59° (1981)
Record low-21° (1986)
Wed, 1138° / 23°0.03
38 °
Sundance, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high38°
Average low23°
Average precipitation0.03 in
Chance of precipitation22%
Record high64° (2016)
Record low-17° (1978)
Thu, 1239° / 24°0.02
39 °
Sundance, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high39°
Average low24°
Average precipitation0.02 in
Chance of precipitation12%
Record high63° (1999)
Record low-20° (1986)
Fri, 1340° / 25°0.02
40 °
Sundance, Friday, 13 November
Climate normal for this date — 60-year average.
Average high40°
Average low25°
Average precipitation0.02 in
Chance of precipitation17%
Record high62° (2025)
Record low-19° (2014)
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 Sundance, 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 Sundance, 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.