Monthly outlook for Unionville, MT: average high 48.4°, average low 30.6°. That is 0.3° above the climate normal for October. Precipitation is expected on 2 days (about 1.3 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 4 November (62.1°), the coolest 24 October (17.7°).
48.4°/30.6°
Average high / low
+0.3°
Above normal
2 / 4
Wet days / normal
1.3 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
23 October – 1 November
43.9°
49.4°
-3.1°
2 November – 11 November
55.9°
43.9°
+6.7°
12 November – 21 November
at normal
39.9°
—
October records over 66 years
85.5°1 October 2011All-time high
-9.6°26 October 2020All-time low
Climate normals and records are computed from the nearest reference point — Helena (5 mi).
Sat, 2442° / 18°0
42 °
Unionville, Saturday, 24 October
Partly cloudy. High 42°, low 18°.
Pressure30.39 inHg
Wind3.1 mph NE
Humidity91%
Visibility3.3 mi
Dew point22°
Sun, 2533° / 22°0
33 °
Unionville, Sunday, 25 October
Clear. High 33°, low 22°.
Pressure30.47 inHg
Wind2.6 mph N
Humidity91%
Visibility6.2 mi
Dew point22°
Mon, 2639° / 20°0
39 °
Unionville, Monday, 26 October
Overcast. High 39°, low 20°.
Pressure30.18 inHg
Wind2.3 mph NE
Humidity87%
Visibility6.2 mi
Dew point26°
Tue, 2744° / 26°0.1
44 °
Unionville, Tuesday, 27 October
Light rain. High 44°, low 26°.
Pressure30.09 inHg
Wind10.3 mph W
Humidity68%
Visibility6.2 mi
Dew point29°
Wed, 2846° / 25°0
46 °
Unionville, Wednesday, 28 October
Overcast. High 46°, low 25°.
Pressure29.94 inHg
Wind4.8 mph SW
Humidity68%
Visibility—
Dew point29°
Thu, 2947° / 31°0
47 °
Unionville, Thursday, 29 October
Partly cloudy. High 47°, low 31°.
Pressure29.94 inHg
Wind7 mph SW
Humidity67%
Visibility—
Dew point31°
Fri, 3048° / 30°0
48 °
Unionville, Friday, 30 October
Mostly clear. High 48°, low 30°.
Pressure29.83 inHg
Wind6.4 mph SW
Humidity55%
Visibility—
Dew point27°
Sat, 3147° / 32°0
47 °
Unionville, Saturday, 31 October
Overcast. High 47°, low 32°.
Pressure29.91 inHg
Wind5.3 mph SW
Humidity55%
Visibility—
Dew point27°
Sun, 0146° / 32°0
46 °
Unionville, Sunday, 1 November
Overcast. High 46°, low 32°.
Pressure29.97 inHg
Wind10 mph W
Humidity49%
Visibility—
Dew point25°
Mon, 0247° / 29°0
47 °
Unionville, Monday, 2 November
Clear. High 47°, low 29°.
Pressure30.45 inHg
Wind6.6 mph SW
Humidity29%
Visibility—
Dew point11°
Tue, 0354° / 33°0
54 °
Unionville, Tuesday, 3 November
Overcast. High 54°, low 33°.
Pressure30.47 inHg
Wind7.5 mph SW
Humidity30%
Visibility—
Dew point16°
Wed, 0462° / 39°0
62 °
Unionville, Wednesday, 4 November
Partly cloudy. High 62°, low 39°.
Pressure30.18 inHg
Wind7 mph SW
Humidity29%
Visibility—
Dew point23°
Thu, 0561° / 42°0
61 °
Unionville, Thursday, 5 November
Clear. High 61°, low 42°.
Pressure29.94 inHg
Wind5.8 mph SW
Humidity31%
Visibility—
Dew point24°
Fri, 0658° / 45°0
58 °
Unionville, Friday, 6 November
Overcast. High 58°, low 45°.
Pressure29.88 inHg
Wind6.8 mph SW
Humidity35%
Visibility—
Dew point26°
Sat, 0754° / 40°0
54 °
Unionville, Saturday, 7 November
Mostly clear. High 54°, low 40°.
Pressure29.91 inHg
Wind11.9 mph SW
Humidity41%
Visibility—
Dew point28°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 0842° / 26°0.06
42 °
Unionville, Sunday, 8 November
Climate normal for this date — 60-year average.
Average high42°
Average low26°
Average precipitation0.06 in
Chance of precipitation35%
Record high62° (1999)
Record low5° (2022)
Mon, 0942° / 25°0.04
42 °
Unionville, Monday, 9 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.04 in
Chance of precipitation27%
Record high63° (2016)
Record low-7° (1986)
Tue, 1041° / 24°0.04
41 °
Unionville, Tuesday, 10 November
Climate normal for this date — 60-year average.
Average high41°
Average low24°
Average precipitation0.04 in
Chance of precipitation22%
Record high62° (2025)
Record low-17° (1986)
Wed, 1141° / 23°0.03
41 °
Unionville, Wednesday, 11 November
Climate normal for this date — 60-year average.
Average high41°
Average low23°
Average precipitation0.03 in
Chance of precipitation20%
Record high63° (1990)
Record low-8° (2000)
Thu, 1242° / 24°0.03
42 °
Unionville, Thursday, 12 November
Climate normal for this date — 60-year average.
Average high42°
Average low24°
Average precipitation0.03 in
Chance of precipitation20%
Record high67° (1999)
Record low-13° (1986)
Fri, 1342° / 25°0.04
42 °
Unionville, Friday, 13 November
Climate normal for this date — 60-year average.
Average high42°
Average low25°
Average precipitation0.04 in
Chance of precipitation22%
Record high67° (2025)
Record low-2° (2000)
Sat, 1441° / 25°0.03
41 °
Unionville, Saturday, 14 November
Climate normal for this date — 60-year average.
Average high41°
Average low25°
Average precipitation0.03 in
Chance of precipitation23%
Record high63° (1999)
Record low2° (2000)
Sun, 1542° / 23°0.02
42 °
Unionville, Sunday, 15 November
Climate normal for this date — 60-year average.
Average high42°
Average low23°
Average precipitation0.02 in
Chance of precipitation15%
Record high64° (2021)
Record low2° (2014)
Mon, 1641° / 24°0.04
41 °
Unionville, Monday, 16 November
Climate normal for this date — 60-year average.
Average high41°
Average low24°
Average precipitation0.04 in
Chance of precipitation27%
Record high58° (2001)
Record low2° (1961)
Tue, 1740° / 23°0.04
40 °
Unionville, Tuesday, 17 November
Climate normal for this date — 60-year average.
Average high40°
Average low23°
Average precipitation0.04 in
Chance of precipitation25%
Record high57° (1976)
Record low-8° (2022)
Wed, 1839° / 23°0.05
39 °
Unionville, Wednesday, 18 November
Climate normal for this date — 60-year average.
Average high39°
Average low23°
Average precipitation0.05 in
Chance of precipitation30%
Record high60° (2008)
Record low-11° (2022)
Thu, 1938° / 21°0.06
38 °
Unionville, Thursday, 19 November
Climate normal for this date — 60-year average.
Average high38°
Average low21°
Average precipitation0.06 in
Chance of precipitation25%
Record high55° (1989)
Record low-7° (1978)
Fri, 2037° / 21°0.03
37 °
Unionville, Friday, 20 November
Climate normal for this date — 60-year average.
Average high37°
Average low21°
Average precipitation0.03 in
Chance of precipitation27%
Record high55° (1989)
Record low-10° (1985)
Sat, 2137° / 20°0.03
37 °
Unionville, Saturday, 21 November
Climate normal for this date — 60-year average.
Average high37°
Average low20°
Average precipitation0.03 in
Chance of precipitation20%
Record high54° (2002)
Record low-8° (1985)
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 Unionville, 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 Unionville, 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.