As of 15:25 MST

Weather in Chelsea, MT

57°

Chelsea, Saturday, 14 November, 15:25

Clear. Feels like 55°. High 57°, low 37°.

Pressure29.74 inHg

Wind9.2 mph SE

Humidity51%

Visibility6.2 mi

Dew point40°

See detailed hourly forecast

Monthly outlook for Chelsea, MT: average high 44°, average low 34.3°. That is 4.4° above the climate normal for November. Precipitation is expected on 4 days (about 0.7 inches), against a normal of 2 days and 0.3 inches. The warmest day looks like 14 November (57.3°), the coolest 19 November (28.7°).

44°/34.3°

Average high / low

+4.4°

Above normal

4 / 2

Wet days / normal

0.7 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
14 November – 23 November	45.3°	38°	+4°
24 November – 3 December	42°	32.4°	+5.3°
4 December – 13 December	at normal	29.1°	—

November records over 66 years

73.8°12 November 1999All-time high

-29°27 November 1985All-time low

Climate normals and records are computed from the nearest reference point — Poplar (7 mi).

Sun, 1552° / 35°

52 °

Chelsea, Sunday, 15 November

Partly cloudy. High 52°, low 35°.

Pressure29.97 inHg

Wind5.7 mph SW

Humidity78%

Visibility6.2 mi

Dew point39°

Mon, 1650° / 34°

50 °

Chelsea, Monday, 16 November

Partly cloudy. High 50°, low 34°.

Pressure30.00 inHg

Wind3.9 mph SW

Humidity62%

Visibility6.2 mi

Dew point36°

Tue, 1751° / 39°

51 °

Chelsea, Tuesday, 17 November

Overcast. High 51°, low 39°.

Pressure29.85 inHg

Wind12.1 mph NE

Humidity59%

Visibility6.2 mi

Dew point36°

Wed, 1840° / 35°

0.02

40 °

Chelsea, Wednesday, 18 November

Light rain. High 40°, low 35°.

Pressure30.00 inHg

Wind9.4 mph NW

Humidity76%

Visibility6.2 mi

Dew point31°

Thu, 1941° / 29°

41 °

Chelsea, Thursday, 19 November

Overcast. High 41°, low 29°.

Pressure30.24 inHg

Wind7 mph SE

Humidity88%

Visibility—

Dew point31°

Fri, 2039° / 29°

39 °

Chelsea, Friday, 20 November

Partly cloudy. High 39°, low 29°.

Pressure29.97 inHg

Wind8.6 mph NE

Humidity79%

Visibility—

Dew point29°

Sat, 2141° / 33°

41 °

Chelsea, Saturday, 21 November

Overcast. High 41°, low 33°.

Pressure30.18 inHg

Wind8.4 mph NW

Humidity76%

Visibility—

Dew point31°

Sun, 2241° / 33°

41 °

Chelsea, Sunday, 22 November

Overcast. High 41°, low 33°.

Pressure30.33 inHg

Wind14.8 mph SE

Humidity65%

Visibility—

Dew point27°

Mon, 2340° / 31°

40 °

Chelsea, Monday, 23 November

Overcast. High 40°, low 31°.

Pressure30.21 inHg

Wind12.3 mph E

Humidity69%

Visibility—

Dew point26°

Tue, 2448° / 32°

48 °

Chelsea, Tuesday, 24 November

Partly cloudy. High 48°, low 32°.

Pressure29.85 inHg

Wind10.5 mph E

Humidity54%

Visibility—

Dew point27°

Wed, 2545° / 36°

45 °

Chelsea, Wednesday, 25 November

Overcast. High 45°, low 36°.

Pressure29.77 inHg

Wind10.9 mph E

Humidity69%

Visibility—

Dew point33°

Thu, 2640° / 38°

0.12

40 °

Chelsea, Thursday, 26 November

Light rain. High 40°, low 38°.

Pressure30.36 inHg

Wind8.6 mph NE

Humidity75%

Visibility—

Dew point31°

Fri, 2745° / 39°

0.1

45 °

Chelsea, Friday, 27 November

Light rain. High 45°, low 39°.

Pressure30.21 inHg

Wind18.1 mph E

Humidity90%

Visibility—

Dew point40°

Sat, 2838° / 35°

0.28

38 °

Chelsea, Saturday, 28 November

Snow. High 38°, low 35°.

Pressure29.97 inHg

Wind10.4 mph E

Humidity96%

Visibility—

Dew point36°

Sun, 2935° / 35°

0.22

35 °

Chelsea, Sunday, 29 November

Snow. High 35°, low 35°.

Pressure29.97 inHg

Wind3.6 mph NE

Humidity99%

Visibility—

Dew point35°

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

Mon, 3032° / 18°

0.02

32 °

Chelsea, Monday, 30 November

Climate normal for this date — 60-year average.

Average high32°

Average low18°

Average precipitation0.02 in

Chance of precipitation15%

Record high50° (1999)

Record low-18° (2025)

Tue, 0132° / 17°

0.03

32 °

Chelsea, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high32°

Average low17°

Average precipitation0.03 in

Chance of precipitation17%

Record high64° (2021)

Record low-18° (1985)

Wed, 0231° / 15°

0.03

31 °

Chelsea, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high31°

Average low15°

Average precipitation0.03 in

Chance of precipitation17%

Record high53° (1998)

Record low-29° (1985)

Thu, 0332° / 16°

0.02

32 °

Chelsea, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high32°

Average low16°

Average precipitation0.02 in

Chance of precipitation10%

Record high51° (1989)

Record low-27° (1972)

Fri, 0431° / 15°

0.02

31 °

Chelsea, Friday, 4 December

Climate normal for this date — 60-year average.

Average high31°

Average low15°

Average precipitation0.02 in

Chance of precipitation13%

Record high58° (1979)

Record low-21° (1972)

Sat, 0529° / 13°

0.02

29 °

Chelsea, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high29°

Average low13°

Average precipitation0.02 in

Chance of precipitation27%

Record high52° (2012)

Record low-19° (1972)

Sun, 0628° / 12°

0.02

28 °

Chelsea, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high28°

Average low12°

Average precipitation0.02 in

Chance of precipitation15%

Record high50° (1991)

Record low-23° (1972)

Mon, 0728° / 13°

0.02

28 °

Chelsea, Monday, 7 December

Climate normal for this date — 60-year average.

Average high28°

Average low13°

Average precipitation0.02 in

Chance of precipitation17%

Record high50° (1987)

Record low-28° (1972)

Tue, 0828° / 11°

0.02

28 °

Chelsea, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high28°

Average low11°

Average precipitation0.02 in

Chance of precipitation13%

Record high52° (2020)

Record low-29° (1972)

Wed, 0929° / 12°

0.01

29 °

Chelsea, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high29°

Average low12°

Average precipitation0.01 in

Chance of precipitation10%

Record high55° (2015)

Record low-42° (1977)

Thu, 1030° / 12°

0.02

30 °

Chelsea, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high30°

Average low12°

Average precipitation0.02 in

Chance of precipitation20%

Record high51° (1987)

Record low-30° (2000)

Fri, 1130° / 14°

0.02

30 °

Chelsea, Friday, 11 December

Climate normal for this date — 60-year average.

Average high30°

Average low14°

Average precipitation0.02 in

Chance of precipitation12%

Record high54° (2004)

Record low-19° (2000)

Sat, 1229° / 13°

0.03

29 °

Chelsea, Saturday, 12 December

Climate normal for this date — 60-year average.

Average high29°

Average low13°

Average precipitation0.03 in

Chance of precipitation17%

Record high48° (2017)

Record low-24° (2000)

Sun, 1328° / 12°

0.02

28 °

Chelsea, Sunday, 13 December

Climate normal for this date — 60-year average.

Average high28°

Average low12°

Average precipitation0.02 in

Chance of precipitation12%

Record high50° (1988)

Record low-24° (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 Chelsea, 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 Chelsea, 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.