Monthly outlook for Chinook, MT: average high 49°, average low 34°. That is 4.5° above the climate normal for November. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 3 days and 0.4 inches. The warmest day looks like 11 November (62.5°), the coolest 21 November (26.4°).
49°/34°
Average high / low
+4.5°
Above normal
0 / 3
Wet days / normal
0.0 in
Precipitation this month
Ten-day blocks vs climate normal
Period
Forecast high
Normal
Difference
9 November – 18 November
53.9°
42.4°
+6.4°
19 November – 28 November
40.7°
37°
+2.1°
29 November – 8 December
at normal
33.3°
—
November records over 66 years
73.2°12 November 1999All-time high
-27.8°27 November 1985All-time low
Tue, 1058° / 35°0.02
58 °
Chinook, Tuesday, 10 November
Light rain. High 58°, low 35°.
Pressure29.94 inHg
Wind19.6 mph W
Humidity48%
Visibility6.2 mi
Dew point38°
Wed, 1162° / 39°0
62 °
Chinook, Wednesday, 11 November
Clear. High 62°, low 39°.
Pressure30.06 inHg
Wind2.2 mph W
Humidity55%
Visibility6.2 mi
Dew point41°
Thu, 1255° / 34°0
55 °
Chinook, Thursday, 12 November
Partly cloudy. High 55°, low 34°.
Pressure30.00 inHg
Wind5.9 mph SE
Humidity64%
Visibility6.2 mi
Dew point40°
Fri, 1355° / 38°0
55 °
Chinook, Friday, 13 November
Overcast. High 55°, low 38°.
Pressure29.68 inHg
Wind14.7 mph E
Humidity66%
Visibility—
Dew point37°
Sat, 1453° / 35°0
53 °
Chinook, Saturday, 14 November
Overcast. High 53°, low 35°.
Pressure29.56 inHg
Wind12.6 mph SE
Humidity78%
Visibility—
Dew point36°
Sun, 1562° / 44°0
62 °
Chinook, Sunday, 15 November
Overcast. High 62°, low 44°.
Pressure29.50 inHg
Wind9.8 mph SE
Humidity36%
Visibility—
Dew point30°
Mon, 1648° / 42°0.01
48 °
Chinook, Monday, 16 November
Light rain. High 48°, low 42°.
Pressure29.74 inHg
Wind12.1 mph W
Humidity47%
Visibility—
Dew point28°
Tue, 1747° / 38°0
47 °
Chinook, Tuesday, 17 November
Partly cloudy. High 47°, low 38°.
Pressure30.12 inHg
Wind14.4 mph W
Humidity45%
Visibility—
Dew point23°
Wed, 1843° / 34°0
43 °
Chinook, Wednesday, 18 November
Overcast. High 43°, low 34°.
Pressure30.36 inHg
Wind6 mph W
Humidity47%
Visibility—
Dew point20°
Thu, 1942° / 34°0
42 °
Chinook, Thursday, 19 November
Overcast. High 42°, low 34°.
Pressure30.39 inHg
Wind7.8 mph SE
Humidity50%
Visibility—
Dew point22°
Fri, 2043° / 29°0
43 °
Chinook, Friday, 20 November
Partly cloudy. High 43°, low 29°.
Pressure30.21 inHg
Wind10.4 mph SE
Humidity33%
Visibility—
Dew point11°
Sat, 2137° / 26°0
37 °
Chinook, Saturday, 21 November
Overcast. High 37°, low 26°.
Pressure30.24 inHg
Wind6.9 mph W
Humidity37%
Visibility—
Dew point10°
Sun, 2241° / 27°0
41 °
Chinook, Sunday, 22 November
Clear. High 41°, low 27°.
Pressure30.12 inHg
Wind4.3 mph S
Humidity41%
Visibility—
Dew point14°
Mon, 2340° / 27°0
40 °
Chinook, Monday, 23 November
Clear. High 40°, low 27°.
Pressure30.06 inHg
Wind10.3 mph W
Humidity42%
Visibility—
Dew point15°
Tue, 2442° / 27°0
42 °
Chinook, Tuesday, 24 November
Clear. High 42°, low 27°.
Pressure29.88 inHg
Wind10.4 mph E
Humidity43%
Visibility—
Dew point15°
From day 17 onward the outlook is built from 60-year climate statistics
Wed, 2536° / 22°0.04
36 °
Chinook, Wednesday, 25 November
Climate normal for this date — 60-year average.
Average high36°
Average low22°
Average precipitation0.04 in
Chance of precipitation22%
Record high58° (2022)
Record low-16° (1993)
Thu, 2634° / 20°0.03
34 °
Chinook, Thursday, 26 November
Climate normal for this date — 60-year average.
Average high34°
Average low20°
Average precipitation0.03 in
Chance of precipitation22%
Record high61° (1998)
Record low-24° (1985)
Fri, 2734° / 19°0.02
34 °
Chinook, Friday, 27 November
Climate normal for this date — 60-year average.
Average high34°
Average low19°
Average precipitation0.02 in
Chance of precipitation13%
Record high59° (2011)
Record low-28° (1985)
Sat, 2836° / 21°0.03
36 °
Chinook, Saturday, 28 November
Climate normal for this date — 60-year average.
Average high36°
Average low21°
Average precipitation0.03 in
Chance of precipitation22%
Record high62° (2021)
Record low-23° (1985)
Sun, 2935° / 20°0.03
35 °
Chinook, Sunday, 29 November
Climate normal for this date — 60-year average.
Average high35°
Average low20°
Average precipitation0.03 in
Chance of precipitation23%
Record high54° (2021)
Record low-20° (1985)
Mon, 3034° / 20°0.02
34 °
Chinook, Monday, 30 November
Climate normal for this date — 60-year average.
Average high34°
Average low20°
Average precipitation0.02 in
Chance of precipitation8%
Record high56° (1999)
Record low-15° (2025)
Tue, 0134° / 18°0.02
34 °
Chinook, Tuesday, 1 December
Climate normal for this date — 60-year average.
Average high34°
Average low18°
Average precipitation0.02 in
Chance of precipitation20%
Record high66° (2021)
Record low-14° (1985)
Wed, 0234° / 19°0.03
34 °
Chinook, Wednesday, 2 December
Climate normal for this date — 60-year average.
Average high34°
Average low19°
Average precipitation0.03 in
Chance of precipitation23%
Record high58° (2021)
Record low-26° (1985)
Thu, 0335° / 18°0.02
35 °
Chinook, Thursday, 3 December
Climate normal for this date — 60-year average.
Average high35°
Average low18°
Average precipitation0.02 in
Chance of precipitation22%
Record high54° (1965)
Record low-23° (1972)
Fri, 0435° / 18°0.02
35 °
Chinook, Friday, 4 December
Climate normal for this date — 60-year average.
Average high35°
Average low18°
Average precipitation0.02 in
Chance of precipitation13%
Record high55° (1989)
Record low-22° (1972)
Sat, 0531° / 17°0.03
31 °
Chinook, Saturday, 5 December
Climate normal for this date — 60-year average.
Average high31°
Average low17°
Average precipitation0.03 in
Chance of precipitation20%
Record high62° (2023)
Record low-18° (2013)
Sun, 0631° / 16°0.02
31 °
Chinook, Sunday, 6 December
Climate normal for this date — 60-year average.
Average high31°
Average low16°
Average precipitation0.02 in
Chance of precipitation20%
Record high59° (2023)
Record low-23° (1972)
Mon, 0731° / 16°0.02
31 °
Chinook, Monday, 7 December
Climate normal for this date — 60-year average.
Average high31°
Average low16°
Average precipitation0.02 in
Chance of precipitation13%
Record high51° (2015)
Record low-27° (1972)
Tue, 0832° / 16°0.02
32 °
Chinook, Tuesday, 8 December
Climate normal for this date — 60-year average.
Average high32°
Average low16°
Average precipitation0.02 in
Chance of precipitation12%
Record high58° (2020)
Record low-31° (1977)
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 Chinook, 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 Chinook, 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.