As of 11:16 MST

Weather in Byrne, MT

44°

Byrne, Thursday, 12 November, 11:16

Overcast. Feels like 44°. High 49°, low 33°.

Pressure30.06 inHg

Wind2.5 mph E

Humidity82%

Visibility6.2 mi

Dew point38°

See detailed hourly forecast

Monthly outlook for Byrne, MT: average high 32.3°, average low 17.4°. That is 0.2° below the climate normal for November. Precipitation is expected on 10 days (about 1.6 inches), against a normal of 6 days and 1.0 inches. The warmest day looks like 15 November (52.6°), the coolest 26 November (-21.8°).

32.3°/17.4°

Average high / low

−0.2°

Below normal

10 / 6

Wet days / normal

1.6 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
12 November – 21 November	41.5°	34.5°	+3.9°
22 November – 1 December	16.9°	29.2°	-6.8°
2 December – 11 December	at normal	26.5°	—

November records over 66 years

58.5°5 November 1980All-time high

-32.6°10 November 1986All-time low

Climate normals and records are computed from the nearest reference point — Springtown (11 mi).

Fri, 1351° / 35°

51 °

Byrne, Friday, 13 November

Overcast. High 51°, low 35°.

Pressure29.62 inHg

Wind2.4 mph E

Humidity45%

Visibility6.2 mi

Dew point28°

Sat, 1449° / 34°

49 °

Byrne, Saturday, 14 November

Overcast. High 49°, low 34°.

Pressure29.80 inHg

Wind8.8 mph W

Humidity70%

Visibility6.2 mi

Dew point37°

Sun, 1553° / 32°

53 °

Byrne, Sunday, 15 November

Mostly clear. High 53°, low 32°.

Pressure29.91 inHg

Wind1.6 mph NE

Humidity56%

Visibility6.2 mi

Dew point31°

Mon, 1643° / 35°

0.07

43 °

Byrne, Monday, 16 November

Light rain. High 43°, low 35°.

Pressure30.03 inHg

Wind6.1 mph W

Humidity89%

Visibility—

Dew point39°

Tue, 1739° / 31°

0.11

39 °

Byrne, Tuesday, 17 November

Snow. High 39°, low 31°.

Pressure30.21 inHg

Wind3.7 mph NW

Humidity88%

Visibility—

Dew point33°

Wed, 1839° / 33°

0.11

39 °

Byrne, Wednesday, 18 November

Light snow. High 39°, low 33°.

Pressure29.85 inHg

Wind4 mph NE

Humidity88%

Visibility—

Dew point33°

Thu, 1933° / 23°

0.47

33 °

Byrne, Thursday, 19 November

Snow. High 33°, low 23°.

Pressure30.09 inHg

Wind3.5 mph NE

Humidity94%

Visibility—

Dew point31°

Fri, 2031° / 15°

0.12

31 °

Byrne, Friday, 20 November

Snow. High 31°, low 15°.

Pressure30.27 inHg

Wind10.9 mph E

Humidity83%

Visibility—

Dew point22°

Sat, 2129° / 19°

0.16

29 °

Byrne, Saturday, 21 November

Light snow. High 29°, low 19°.

Pressure30.18 inHg

Wind3.2 mph NE

Humidity87%

Visibility—

Dew point23°

Sun, 2230° / 14°

0.01

30 °

Byrne, Sunday, 22 November

Light snow. High 30°, low 14°.

Pressure30.09 inHg

Wind6.2 mph W

Humidity85%

Visibility—

Dew point21°

Mon, 2331° / 13°

0.39

31 °

Byrne, Monday, 23 November

Snow. High 31°, low 13°.

Pressure30.06 inHg

Wind5.7 mph E

Humidity90%

Visibility—

Dew point23°

Tue, 2416° / 2°

0.04

16 °

Byrne, Tuesday, 24 November

Light snow. High 16°, low 2°.

Pressure30.50 inHg

Wind7.3 mph E

Humidity82%

Visibility—

Dew point10°

Wed, 256° / -8°

0.05

6 °

Byrne, Wednesday, 25 November

Light snow. High 6°, low -8°.

Pressure30.62 inHg

Wind6.4 mph E

Humidity86%

Visibility—

Dew point1°

Thu, 267° / -22°

7 °

Byrne, Thursday, 26 November

Mostly clear. High 7°, low -22°.

Pressure30.74 inHg

Wind3.6 mph SE

Humidity82%

Visibility—

Dew point-8°

Fri, 2711° / -12°

0.05

11 °

Byrne, Friday, 27 November

Light snow. High 11°, low -12°.

Pressure30.65 inHg

Wind3 mph N

Humidity81%

Visibility—

Dew point-1°

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

Sat, 2829° / 13°

0.06

29 °

Byrne, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high29°

Average low13°

Average precipitation0.06 in

Chance of precipitation33%

Record high50° (2021)

Record low-6° (1981)

Sun, 2928° / 11°

0.05

28 °

Byrne, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high28°

Average low11°

Average precipitation0.05 in

Chance of precipitation35%

Record high44° (2021)

Record low-8° (1985)

Mon, 3028° / 12°

0.05

28 °

Byrne, Monday, 30 November

Climate normal for this date — 60-year average.

Average high28°

Average low12°

Average precipitation0.05 in

Chance of precipitation25%

Record high43° (1969)

Record low-22° (1991)

Tue, 0128° / 11°

0.07

28 °

Byrne, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high28°

Average low11°

Average precipitation0.07 in

Chance of precipitation40%

Record high52° (2021)

Record low-23° (1985)

Wed, 0229° / 11°

0.12

29 °

Byrne, Wednesday, 2 December

Climate normal for this date — 60-year average.

Average high29°

Average low11°

Average precipitation0.12 in

Chance of precipitation47%

Record high47° (2021)

Record low-17° (1985)

Thu, 0328° / 11°

0.05

28 °

Byrne, Thursday, 3 December

Climate normal for this date — 60-year average.

Average high28°

Average low11°

Average precipitation0.05 in

Chance of precipitation32%

Record high42° (1987)

Record low-20° (1984)

Fri, 0427° / 9°

0.06

27 °

Byrne, Friday, 4 December

Climate normal for this date — 60-year average.

Average high27°

Average low9°

Average precipitation0.06 in

Chance of precipitation30%

Record high41° (2024)

Record low-26° (1972)

Sat, 0526° / 8°

0.05

26 °

Byrne, Saturday, 5 December

Climate normal for this date — 60-year average.

Average high26°

Average low8°

Average precipitation0.05 in

Chance of precipitation33%

Record high46° (2023)

Record low-41° (1972)

Sun, 0626° / 8°

0.07

26 °

Byrne, Sunday, 6 December

Climate normal for this date — 60-year average.

Average high26°

Average low8°

Average precipitation0.07 in

Chance of precipitation33%

Record high46° (2023)

Record low-31° (1972)

Mon, 0725° / 8°

0.06

25 °

Byrne, Monday, 7 December

Climate normal for this date — 60-year average.

Average high25°

Average low8°

Average precipitation0.06 in

Chance of precipitation40%

Record high48° (2024)

Record low-26° (2005)

Tue, 0825° / 7°

0.04

25 °

Byrne, Tuesday, 8 December

Climate normal for this date — 60-year average.

Average high25°

Average low7°

Average precipitation0.04 in

Chance of precipitation38%

Record high45° (2020)

Record low-39° (1972)

Wed, 0925° / 7°

0.06

25 °

Byrne, Wednesday, 9 December

Climate normal for this date — 60-year average.

Average high25°

Average low7°

Average precipitation0.06 in

Chance of precipitation33%

Record high47° (2020)

Record low-37° (1972)

Thu, 1027° / 10°

0.06

27 °

Byrne, Thursday, 10 December

Climate normal for this date — 60-year average.

Average high27°

Average low10°

Average precipitation0.06 in

Chance of precipitation35%

Record high44° (2025)

Record low-32° (1972)

Fri, 1127° / 10°

0.05

27 °

Byrne, Friday, 11 December

Climate normal for this date — 60-year average.

Average high27°

Average low10°

Average precipitation0.05 in

Chance of precipitation33%

Record high43° (2025)

Record low-30° (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 Byrne, 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 Byrne, 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.