As of 07:49 MST

Weather in Chinook, MT

35°

Chinook, Friday, 13 November, 07:49

Overcast. Feels like 27°. High 58°, low 34°.

Pressure29.74 inHg

Wind9.3 mph E

Humidity92%

Visibility6.2 mi

Dew point32°

See detailed hourly forecast

Monthly outlook for Chinook, MT: average high 39.3°, average low 27.9°. That is 0.1° above the climate normal for November. Precipitation is expected on 2 days (about 0.7 inches), against a normal of 3 days and 0.4 inches. The warmest day looks like 13 November (57.9°), the coolest 23 November (9.7°).

39.3°/27.9°

Average high / low

+0.1°

Above normal

2 / 3

Wet days / normal

0.7 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
13 November – 22 November	42.6°	41°	+0.9°
23 November – 2 December	33.8°	35.3°	-0.8°
3 December – 12 December	at normal	33°	—

November records over 66 years

73.2°12 November 1999All-time high

-27.8°27 November 1985All-time low

Sat, 1458° / 35°

58 °

Chinook, Saturday, 14 November

Overcast. High 58°, low 35°.

Pressure29.68 inHg

Wind2.1 mph S

Humidity67%

Visibility6.2 mi

Dew point37°

Sun, 1555° / 35°

55 °

Chinook, Sunday, 15 November

Overcast. High 55°, low 35°.

Pressure29.85 inHg

Wind3.5 mph E

Humidity53%

Visibility6.2 mi

Dew point36°

Mon, 1650° / 34°

50 °

Chinook, Monday, 16 November

Overcast. High 50°, low 34°.

Pressure29.94 inHg

Wind4 mph SE

Humidity53%

Visibility6.2 mi

Dew point32°

Tue, 1741° / 34°

0.47

41 °

Chinook, Tuesday, 17 November

Snow. High 41°, low 34°.

Pressure30.00 inHg

Wind8.1 mph W

Humidity89%

Visibility—

Dew point37°

Wed, 1836° / 33°

0.21

36 °

Chinook, Wednesday, 18 November

Snow. High 36°, low 33°.

Pressure29.91 inHg

Wind8 mph NW

Humidity97%

Visibility—

Dew point34°

Thu, 1940° / 32°

40 °

Chinook, Thursday, 19 November

Overcast. High 40°, low 32°.

Pressure30.21 inHg

Wind10.4 mph E

Humidity71%

Visibility—

Dew point29°

Fri, 2039° / 33°

39 °

Chinook, Friday, 20 November

Overcast. High 39°, low 33°.

Pressure30.09 inHg

Wind8.6 mph E

Humidity64%

Visibility—

Dew point24°

Sat, 2131° / 20°

0.01

31 °

Chinook, Saturday, 21 November

Light snow. High 31°, low 20°.

Pressure30.18 inHg

Wind19.2 mph NW

Humidity56%

Visibility—

Dew point13°

Sun, 2219° / 12°

19 °

Chinook, Sunday, 22 November

Clear. High 19°, low 12°.

Pressure30.42 inHg

Wind15.2 mph NW

Humidity37%

Visibility—

Dew point-4°

Mon, 2321° / 10°

21 °

Chinook, Monday, 23 November

Clear. High 21°, low 10°.

Pressure30.77 inHg

Wind6.2 mph SE

Humidity37%

Visibility—

Dew point-7°

Tue, 2429° / 19°

29 °

Chinook, Tuesday, 24 November

Clear. High 29°, low 19°.

Pressure30.47 inHg

Wind16.6 mph W

Humidity45%

Visibility—

Dew point7°

Wed, 2533° / 23°

33 °

Chinook, Wednesday, 25 November

Overcast. High 33°, low 23°.

Pressure30.18 inHg

Wind17.2 mph W

Humidity46%

Visibility—

Dew point9°

Thu, 2641° / 31°

41 °

Chinook, Thursday, 26 November

Overcast. High 41°, low 31°.

Pressure29.97 inHg

Wind18 mph W

Humidity47%

Visibility—

Dew point19°

Fri, 2740° / 31°

40 °

Chinook, Friday, 27 November

Overcast. High 40°, low 31°.

Pressure29.97 inHg

Wind10 mph W

Humidity50%

Visibility—

Dew point20°

Sat, 2840° / 31°

40 °

Chinook, Saturday, 28 November

Overcast. High 40°, low 31°.

Pressure29.74 inHg

Wind9.1 mph W

Humidity67%

Visibility—

Dew point26°

From day 17 onward the outlook is built from 60-year climate statistics

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)

Wed, 0933° / 17°

0.02

33 °

Chinook, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high33°

Average low17°

Average precipitation0.02 in

Chance of precipitation12%

Record high56° (2015)

Record low-41° (1977)

Thu, 1034° / 19°

0.03

34 °

Chinook, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high34°

Average low19°

Average precipitation0.03 in

Chance of precipitation18%

Record high54° (1979)

Record low-16° (1977)

Fri, 1134° / 19°

0.04

34 °

Chinook, Friday, 11 December

Climate normal for this date — 60-year average.

Average high34°

Average low19°

Average precipitation0.04 in

Chance of precipitation18%

Record high53° (2004)

Record low-15° (1961)

Sat, 1233° / 19°

0.03

33 °

Chinook, Saturday, 12 December

Climate normal for this date — 60-year average.

Average high33°

Average low19°

Average precipitation0.03 in

Chance of precipitation22%

Record high53° (2014)

Record low-20° (2000)

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.