Monthly outlook for Sundance, MT: average high 50.4°, average low 34.6°. That is 1° above the climate normal for October. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 22 October (68.3°), the coolest 31 October (25.2°).
50.4°/34.6°
Average high / low
+1°
Above normal
1 / 3
Wet days / normal
0.1 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
17 October – 26 October
56°
50.8°
+2.9°
27 October – 5 November
41°
44.2°
-1.8°
6 November – 15 November
at normal
39.6°
—
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).
Sun, 1855° / 31°0
55 °
Sundance, Sunday, 18 October
Clear. High 55°, low 31°.
Pressure30.12 inHg
Wind6 mph SE
Humidity54%
Visibility6.2 mi
Dew point35°
Mon, 1960° / 35°0
60 °
Sundance, Monday, 19 October
Overcast. High 60°, low 35°.
Pressure29.94 inHg
Wind0.9 mph SE
Humidity60%
Visibility6.2 mi
Dew point36°
Tue, 2055° / 38°0
55 °
Sundance, Tuesday, 20 October
Overcast. High 55°, low 38°.
Pressure30.15 inHg
Wind3.7 mph N
Humidity50%
Visibility6.2 mi
Dew point32°
Wed, 2162° / 36°0
62 °
Sundance, Wednesday, 21 October
Mostly clear. High 62°, low 36°.
Pressure30.03 inHg
Wind7.1 mph SE
Humidity61%
Visibility—
Dew point37°
Thu, 2268° / 39°0.01
68 °
Sundance, Thursday, 22 October
Light rain. High 68°, low 39°.
Pressure29.80 inHg
Wind6.3 mph SW
Humidity42%
Visibility—
Dew point35°
Fri, 2349° / 42°0
49 °
Sundance, Friday, 23 October
Overcast. High 49°, low 42°.
Pressure29.94 inHg
Wind16.6 mph N
Humidity51%
Visibility—
Dew point27°
Sat, 2448° / 34°0
48 °
Sundance, Saturday, 24 October
Mostly clear. High 48°, low 34°.
Pressure30.06 inHg
Wind14.7 mph SE
Humidity52%
Visibility—
Dew point25°
Sun, 2546° / 36°0
46 °
Sundance, Sunday, 25 October
Overcast. High 46°, low 36°.
Pressure29.83 inHg
Wind7.5 mph E
Humidity75%
Visibility—
Dew point32°
Mon, 2648° / 39°0.14
48 °
Sundance, Monday, 26 October
Light rain. High 48°, low 39°.
Pressure29.44 inHg
Wind24.9 mph W
Humidity45%
Visibility—
Dew point25°
Tue, 2745° / 38°0
45 °
Sundance, Tuesday, 27 October
Overcast. High 45°, low 38°.
Pressure29.38 inHg
Wind21.2 mph W
Humidity51%
Visibility—
Dew point27°
Wed, 2844° / 36°0
44 °
Sundance, Wednesday, 28 October
Clear. High 44°, low 36°.
Pressure29.77 inHg
Wind32 mph W
Humidity40%
Visibility—
Dew point19°
Thu, 2938° / 30°0
38 °
Sundance, Thursday, 29 October
Overcast. High 38°, low 30°.
Pressure29.77 inHg
Wind15.7 mph NW
Humidity62%
Visibility—
Dew point24°
Fri, 3036° / 27°0
36 °
Sundance, Friday, 30 October
Overcast. High 36°, low 27°.
Pressure29.94 inHg
Wind8.4 mph S
Humidity45%
Visibility—
Dew point12°
Sat, 3141° / 25°0
41 °
Sundance, Saturday, 31 October
Overcast. High 41°, low 25°.
Pressure29.59 inHg
Wind13.3 mph SW
Humidity46%
Visibility—
Dew point18°
Sun, 0141° / 28°0
41 °
Sundance, Sunday, 1 November
Overcast. High 41°, low 28°.
Pressure29.88 inHg
Wind6.4 mph SE
Humidity58%
Visibility—
Dew point23°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 1440° / 26°0.03
40 °
Sundance, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.03 in
Chance of precipitation18%
Record high62° (1999)
Record low-18° (2014)
Sun, 1540° / 26°0.01
40 °
Sundance, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high40°
Average low26°
Average precipitation0.01 in
Chance of precipitation8%
Record high58° (2001)
Record low-5° (1997)
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.