Monthly outlook for Unionville, MT: average high 47.2°, average low 29.5°. That is 0.7° below the climate normal for October. Precipitation is expected on 3 days (about 1.9 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 6 November (61.6°), the coolest 28 October (17.5°).
47.2°/29.5°
Average high / low
−0.7°
Below normal
3 / 4
Wet days / normal
1.9 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
22 October – 31 October
41.6°
50.1°
-4.7°
1 November – 10 November
56.6°
44.4°
+6.7°
11 November – 20 November
at normal
40.3°
—
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).
Fri, 2343° / 25°0.93
43 °
Unionville, Friday, 23 October
Snow. High 43°, low 25°.
Pressure29.94 inHg
Wind11.4 mph N
Humidity99%
Visibility0.3 mi
Dew point38°
Sat, 2439° / 24°0
39 °
Unionville, Saturday, 24 October
Clear. High 39°, low 24°.
Pressure30.39 inHg
Wind3.5 mph NE
Humidity86%
Visibility6.2 mi
Dew point28°
Sun, 2536° / 25°0
36 °
Unionville, Sunday, 25 October
Overcast. High 36°, low 25°.
Pressure30.45 inHg
Wind4.6 mph N
Humidity92%
Visibility6.2 mi
Dew point25°
Mon, 2640° / 22°0
40 °
Unionville, Monday, 26 October
Overcast. High 40°, low 22°.
Pressure30.30 inHg
Wind2.3 mph NE
Humidity84%
Visibility6.2 mi
Dew point26°
Tue, 2737° / 27°0.25
37 °
Unionville, Tuesday, 27 October
Snow. High 37°, low 27°.
Pressure30.03 inHg
Wind2.7 mph N
Humidity81%
Visibility—
Dew point30°
Wed, 2833° / 18°0.67
33 °
Unionville, Wednesday, 28 October
Snow. High 33°, low 18°.
Pressure30.50 inHg
Wind6.4 mph N
Humidity78%
Visibility—
Dew point23°
Thu, 2940° / 18°0
40 °
Unionville, Thursday, 29 October
Mostly clear. High 40°, low 18°.
Pressure30.21 inHg
Wind6 mph SW
Humidity75%
Visibility—
Dew point24°
Fri, 3047° / 30°0.02
47 °
Unionville, Friday, 30 October
Light rain. High 47°, low 30°.
Pressure29.80 inHg
Wind7.9 mph SW
Humidity73%
Visibility—
Dew point33°
Sat, 3143° / 30°0
43 °
Unionville, Saturday, 31 October
Partly cloudy. High 43°, low 30°.
Pressure29.85 inHg
Wind11.8 mph W
Humidity64%
Visibility—
Dew point29°
Sun, 0147° / 28°0
47 °
Unionville, Sunday, 1 November
Overcast. High 47°, low 28°.
Pressure30.00 inHg
Wind8.1 mph SW
Humidity56%
Visibility—
Dew point27°
Mon, 0252° / 32°0
52 °
Unionville, Monday, 2 November
Clear. High 52°, low 32°.
Pressure30.21 inHg
Wind7.5 mph SW
Humidity38%
Visibility—
Dew point22°
Tue, 0359° / 36°0
59 °
Unionville, Tuesday, 3 November
Clear. High 59°, low 36°.
Pressure30.06 inHg
Wind8.3 mph SW
Humidity31%
Visibility—
Dew point21°
Wed, 0461° / 38°0
61 °
Unionville, Wednesday, 4 November
Clear. High 61°, low 38°.
Pressure29.88 inHg
Wind12.2 mph SW
Humidity28%
Visibility—
Dew point21°
Thu, 0560° / 39°0
60 °
Unionville, Thursday, 5 November
Partly cloudy. High 60°, low 39°.
Pressure29.83 inHg
Wind13.5 mph S
Humidity33%
Visibility—
Dew point24°
Fri, 0662° / 45°0
62 °
Unionville, Friday, 6 November
Overcast. High 62°, low 45°.
Pressure29.71 inHg
Wind11.6 mph S
Humidity41%
Visibility—
Dew point33°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0744° / 27°0.04
44 °
Unionville, Saturday, 7 November
Climate normal for this date — 60-year average.
Average high44°
Average low27°
Average precipitation0.04 in
Chance of precipitation32%
Record high63° (2010)
Record low-1° (2017)
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)
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.