Monthly outlook for Unionville, MT: average high 37°, average low 22.9°. That is 0.5° below the climate normal for November. Precipitation is expected on 7 days (about 1.2 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 12 November (56.3°), the coolest 27 November (10.3°).
37°/22.9°
Average high / low
−0.5°
Below normal
7 / 4
Wet days / normal
1.2 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
12 November – 21 November
42.1°
39.9°
+1.3°
22 November – 1 December
28.4°
33.9°
-3.1°
2 December – 11 December
at normal
31.2°
—
November records over 66 years
70.5°1 November 2025All-time high
-20.2°23 November 1985All-time low
Climate normals and records are computed from the nearest reference point — Helena (5 mi).
Fri, 1355° / 39°0
55 °
Unionville, Friday, 13 November
Overcast. High 55°, low 39°.
Pressure29.65 inHg
Wind3.3 mph E
Humidity42%
Visibility6.2 mi
Dew point28°
Sat, 1453° / 34°0
53 °
Unionville, Saturday, 14 November
Partly cloudy. High 53°, low 34°.
Pressure29.71 inHg
Wind2.6 mph N
Humidity50%
Visibility6.2 mi
Dew point34°
Sun, 1555° / 30°0
55 °
Unionville, Sunday, 15 November
Partly cloudy. High 55°, low 30°.
Pressure29.88 inHg
Wind3.2 mph E
Humidity54%
Visibility6.2 mi
Dew point35°
Mon, 1648° / 32°0.07
48 °
Unionville, Monday, 16 November
Snow. High 48°, low 32°.
Pressure29.94 inHg
Wind8.5 mph W
Humidity56%
Visibility—
Dew point29°
Tue, 1737° / 32°0.02
37 °
Unionville, Tuesday, 17 November
Light snow. High 37°, low 32°.
Pressure30.15 inHg
Wind6.4 mph W
Humidity78%
Visibility—
Dew point29°
Wed, 1836° / 28°0.13
36 °
Unionville, Wednesday, 18 November
Snow. High 36°, low 28°.
Pressure29.85 inHg
Wind4.9 mph NE
Humidity85%
Visibility—
Dew point29°
Thu, 1928° / 23°0.27
28 °
Unionville, Thursday, 19 November
Snow. High 28°, low 23°.
Pressure30.15 inHg
Wind6.8 mph N
Humidity86%
Visibility—
Dew point24°
Fri, 2030° / 17°0.11
30 °
Unionville, Friday, 20 November
Snow. High 30°, low 17°.
Pressure30.09 inHg
Wind8.4 mph N
Humidity79%
Visibility—
Dew point22°
Sat, 2124° / 16°0.44
24 °
Unionville, Saturday, 21 November
Snow. High 24°, low 16°.
Pressure30.27 inHg
Wind8.5 mph N
Humidity93%
Visibility—
Dew point21°
Sun, 2231° / 13°0
31 °
Unionville, Sunday, 22 November
Partly cloudy. High 31°, low 13°.
Pressure30.18 inHg
Wind6.8 mph SW
Humidity75%
Visibility—
Dew point18°
Mon, 2326° / 15°0.03
26 °
Unionville, Monday, 23 November
Light snow. High 26°, low 15°.
Pressure30.12 inHg
Wind6.9 mph SW
Humidity86%
Visibility—
Dew point19°
Tue, 2428° / 17°0.13
28 °
Unionville, Tuesday, 24 November
Light snow. High 28°, low 17°.
Pressure30.09 inHg
Wind7.1 mph SW
Humidity81%
Visibility—
Dew point22°
Wed, 2530° / 14°0
30 °
Unionville, Wednesday, 25 November
Overcast. High 30°, low 14°.
Pressure30.12 inHg
Wind5 mph SW
Humidity88%
Visibility—
Dew point22°
Thu, 2634° / 13°0.04
34 °
Unionville, Thursday, 26 November
Light snow. High 34°, low 13°.
Pressure30.12 inHg
Wind6.2 mph SW
Humidity90%
Visibility—
Dew point30°
Fri, 2721° / 10°0.01
21 °
Unionville, Friday, 27 November
Light snow. High 21°, low 10°.
Pressure30.36 inHg
Wind4.4 mph NE
Humidity94%
Visibility—
Dew point15°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 2833° / 18°0.04
33 °
Unionville, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high33°
Average low18°
Average precipitation0.04 in
Chance of precipitation30%
Record high62° (2021)
Record low-10° (2006)
Sun, 2932° / 16°0.04
32 °
Unionville, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high32°
Average low16°
Average precipitation0.04 in
Chance of precipitation28%
Record high52° (1980)
Record low-11° (1985)
Mon, 3032° / 17°0.03
32 °
Unionville, Monday, 30 November
Climate normal for this date — 60-year average.
Average high32°
Average low17°
Average precipitation0.03 in
Chance of precipitation22%
Record high53° (1999)
Record low-15° (1985)
Tue, 0133° / 17°0.04
33 °
Unionville, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high33°
Average low17°
Average precipitation0.04 in
Chance of precipitation27%
Record high64° (2021)
Record low-18° (1985)
Wed, 0233° / 17°0.07
33 °
Unionville, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high33°
Average low17°
Average precipitation0.07 in
Chance of precipitation33%
Record high60° (2021)
Record low-12° (1985)
Thu, 0333° / 17°0.04
33 °
Unionville, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high33°
Average low17°
Average precipitation0.04 in
Chance of precipitation23%
Record high49° (1989)
Record low-10° (1972)
Fri, 0433° / 16°0.04
33 °
Unionville, Friday, 4 December
Climate normal for this date — 60-year average.
Average high33°
Average low16°
Average precipitation0.04 in
Chance of precipitation25%
Record high51° (1987)
Record low-17° (1972)
Sat, 0531° / 16°0.04
31 °
Unionville, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high31°
Average low16°
Average precipitation0.04 in
Chance of precipitation28%
Record high58° (2023)
Record low-16° (2013)
Sun, 0631° / 15°0.04
31 °
Unionville, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high31°
Average low15°
Average precipitation0.04 in
Chance of precipitation23%
Record high54° (2023)
Record low-19° (2013)
Mon, 0729° / 14°0.03
29 °
Unionville, Monday, 7 December
Climate normal for this date — 60-year average.
Average high29°
Average low14°
Average precipitation0.03 in
Chance of precipitation32%
Record high54° (2024)
Record low-19° (2013)
Tue, 0829° / 13°0.02
29 °
Unionville, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high29°
Average low13°
Average precipitation0.02 in
Chance of precipitation17%
Record high54° (2020)
Record low-26° (1972)
Wed, 0930° / 13°0.03
30 °
Unionville, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high30°
Average low13°
Average precipitation0.03 in
Chance of precipitation23%
Record high49° (1990)
Record low-22° (2009)
Thu, 1031° / 16°0.03
31 °
Unionville, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high31°
Average low16°
Average precipitation0.03 in
Chance of precipitation30%
Record high56° (2025)
Record low-20° (1961)
Fri, 1132° / 16°0.03
32 °
Unionville, Friday, 11 December
Climate normal for this date — 60-year average.
Average high32°
Average low16°
Average precipitation0.03 in
Chance of precipitation18%
Record high56° (2025)
Record low-21° (1961)
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.