Monthly outlook for Portage, MT: average high 41.5°, average low 29.2°. That is 0.1° above the climate normal for November. Precipitation is expected on 4 days (about 1.4 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 13 November (57.9°), the coolest 23 November (9.1°).
41.5°/29.2°
Average high / low
+0.1°
Above normal
4 / 3
Wet days / normal
1.4 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
13 November – 22 November
45.1°
43.2°
+1.1°
23 November – 2 December
35.6°
37.5°
-1.1°
3 December – 12 December
at normal
35.5°
—
November records over 66 years
72.1°1 November 2025All-time high
-28.7°23 November 1985All-time low
Climate normals and records are computed from the nearest reference point — Carter (12 mi).
Sat, 1458° / 35°0
58 °
Portage, Saturday, 14 November
Clear. High 58°, low 35°.
Pressure29.59 inHg
Wind13.3 mph SW
Humidity40%
Visibility6.2 mi
Dew point35°
Sun, 1557° / 39°0
57 °
Portage, Sunday, 15 November
Overcast. High 57°, low 39°.
Pressure29.83 inHg
Wind14.6 mph SW
Humidity41%
Visibility6.2 mi
Dew point32°
Mon, 1656° / 40°0.1
56 °
Portage, Monday, 16 November
Light rain. High 56°, low 40°.
Pressure29.88 inHg
Wind6.5 mph SW
Humidity45%
Visibility6.2 mi
Dew point30°
Tue, 1740° / 32°0.66
40 °
Portage, Tuesday, 17 November
Snow. High 40°, low 32°.
Pressure30.03 inHg
Wind8.2 mph N
Humidity98%
Visibility—
Dew point35°
Wed, 1833° / 30°0.35
33 °
Portage, Wednesday, 18 November
Snow. High 33°, low 30°.
Pressure29.91 inHg
Wind10.7 mph W
Humidity98%
Visibility—
Dew point31°
Thu, 1937° / 30°0
37 °
Portage, Thursday, 19 November
Overcast. High 37°, low 30°.
Pressure30.27 inHg
Wind6.9 mph NE
Humidity70%
Visibility—
Dew point26°
Fri, 2038° / 29°0
38 °
Portage, Friday, 20 November
Mostly clear. High 38°, low 29°.
Pressure30.24 inHg
Wind6.6 mph S
Humidity68%
Visibility—
Dew point24°
Sat, 2142° / 29°0
42 °
Portage, Saturday, 21 November
Clear. High 42°, low 29°.
Pressure29.94 inHg
Wind8.7 mph SW
Humidity58%
Visibility—
Dew point23°
Sun, 2234° / 18°0.25
34 °
Portage, Sunday, 22 November
Snow. High 34°, low 18°.
Pressure30.27 inHg
Wind19.9 mph NW
Humidity90%
Visibility—
Dew point23°
Mon, 2318° / 9°0
18 °
Portage, Monday, 23 November
Overcast. High 18°, low 9°.
Pressure30.62 inHg
Wind5.9 mph SW
Humidity79%
Visibility—
Dew point10°
Tue, 2426° / 14°0
26 °
Portage, Tuesday, 24 November
Overcast. High 26°, low 14°.
Pressure30.27 inHg
Wind5.6 mph NE
Humidity87%
Visibility—
Dew point19°
Wed, 2541° / 18°0
41 °
Portage, Wednesday, 25 November
Overcast. High 41°, low 18°.
Pressure30.27 inHg
Wind20 mph SW
Humidity85%
Visibility—
Dew point26°
Thu, 2644° / 38°0
44 °
Portage, Thursday, 26 November
Overcast. High 44°, low 38°.
Pressure29.94 inHg
Wind21.1 mph SW
Humidity63%
Visibility—
Dew point29°
Fri, 2743° / 35°0
43 °
Portage, Friday, 27 November
Overcast. High 43°, low 35°.
Pressure30.09 inHg
Wind15.3 mph SW
Humidity66%
Visibility—
Dew point29°
Sat, 2841° / 32°0
41 °
Portage, Saturday, 28 November
Overcast. High 41°, low 32°.
Pressure29.77 inHg
Wind8.8 mph SW
Humidity61%
Visibility—
Dew point26°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2937° / 21°0.02
37 °
Portage, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high37°
Average low21°
Average precipitation0.02 in
Chance of precipitation18%
Record high56° (2021)
Record low-26° (1985)
Mon, 3037° / 22°0.02
37 °
Portage, Monday, 30 November
Climate normal for this date — 60-year average.
Average high37°
Average low22°
Average precipitation0.02 in
Chance of precipitation15%
Record high58° (1999)
Record low-13° (1985)
Tue, 0137° / 22°0.03
37 °
Portage, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high37°
Average low22°
Average precipitation0.03 in
Chance of precipitation23%
Record high65° (2021)
Record low-21° (1985)
Wed, 0236° / 22°0.04
36 °
Portage, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high36°
Average low22°
Average precipitation0.04 in
Chance of precipitation27%
Record high61° (2021)
Record low-25° (1985)
Thu, 0337° / 21°0.02
37 °
Portage, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high37°
Average low21°
Average precipitation0.02 in
Chance of precipitation18%
Record high59° (1987)
Record low-19° (1972)
Fri, 0437° / 22°0.02
37 °
Portage, Friday, 4 December
Climate normal for this date — 60-year average.
Average high37°
Average low22°
Average precipitation0.02 in
Chance of precipitation13%
Record high57° (1987)
Record low-29° (1972)
Sat, 0535° / 20°0.03
35 °
Portage, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.03 in
Chance of precipitation23%
Record high59° (2023)
Record low-15° (1972)
Sun, 0634° / 19°0.04
34 °
Portage, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high34°
Average low19°
Average precipitation0.04 in
Chance of precipitation18%
Record high60° (1987)
Record low-34° (1972)
Mon, 0733° / 18°0.01
33 °
Portage, Monday, 7 December
Climate normal for this date — 60-year average.
Average high33°
Average low18°
Average precipitation0.01 in
Chance of precipitation8%
Record high56° (2024)
Record low-24° (1972)
Tue, 0835° / 19°0.02
35 °
Portage, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high35°
Average low19°
Average precipitation0.02 in
Chance of precipitation13%
Record high58° (2020)
Record low-38° (1972)
Wed, 0936° / 21°0.02
36 °
Portage, Wednesday, 9 December
Climate normal for this date — 60-year average.
Average high36°
Average low21°
Average precipitation0.02 in
Chance of precipitation10%
Record high58° (1979)
Record low-32° (1977)
Thu, 1037° / 21°0.03
37 °
Portage, Thursday, 10 December
Climate normal for this date — 60-year average.
Average high37°
Average low21°
Average precipitation0.03 in
Chance of precipitation22%
Record high55° (2004)
Record low-20° (1961)
Fri, 1137° / 22°0.02
37 °
Portage, Friday, 11 December
Climate normal for this date — 60-year average.
Average high37°
Average low22°
Average precipitation0.02 in
Chance of precipitation17%
Record high56° (2025)
Record low-28° (1961)
Sat, 1235° / 22°0.04
35 °
Portage, Saturday, 12 December
Climate normal for this date — 60-year average.
Average high35°
Average low22°
Average precipitation0.04 in
Chance of precipitation27%
Record high58° (2014)
Record low-20° (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 Portage, 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 Portage, 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.