As of 06:28 MST

Weather in Byrne, MT

35°

Byrne, Thursday, 12 November, 06:28

Overcast. Feels like 32°. High 50°, low 33°.

Pressure30.06 inHg

Wind3.4 mph SE

Humidity91%

Visibility6.2 mi

Dew point33°

See detailed hourly forecast

Monthly outlook for Byrne, MT: average high 38.8°, average low 24.1°. That is 3.4° above the climate normal for November. Precipitation is expected on 6 days (about 0.9 inches), against a normal of 6 days and 1.0 inches. The warmest day looks like 15 November (52.6°), the coolest 22 November (8.7°).

38.8°/24.1°

Average high / low

+3.4°

Above normal

6 / 6

Wet days / normal

0.9 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
12 November – 21 November	41.7°	34.5°	+4°
22 November – 1 December	34.1°	29.2°	+2.7°
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°

0.01

31 °

Byrne, Friday, 20 November

Light snow. High 31°, low 15°.

Pressure30.15 inHg

Wind3.1 mph E

Humidity88%

Visibility—

Dew point24°

Sat, 2129° / 14°

0.08

29 °

Byrne, Saturday, 21 November

Light snow. High 29°, low 14°.

Pressure30.27 inHg

Wind2.6 mph S

Humidity85%

Visibility—

Dew point23°

Sun, 2232° / 9°

32 °

Byrne, Sunday, 22 November

Overcast. High 32°, low 9°.

Pressure30.30 inHg

Wind4.2 mph NW

Humidity85%

Visibility—

Dew point20°

Mon, 2331° / 12°

0.01

31 °

Byrne, Monday, 23 November

Light snow. High 31°, low 12°.

Pressure30.12 inHg

Wind3.6 mph SW

Humidity85%

Visibility—

Dew point21°

Tue, 2435° / 12°

0.01

35 °

Byrne, Tuesday, 24 November

Light snow. High 35°, low 12°.

Pressure30.12 inHg

Wind4 mph W

Humidity87%

Visibility—

Dew point25°

Wed, 2536° / 21°

0.01

36 °

Byrne, Wednesday, 25 November

Light snow. High 36°, low 21°.

Pressure30.12 inHg

Wind3.8 mph S

Humidity85%

Visibility—

Dew point27°

Thu, 2637° / 27°

0.06

37 °

Byrne, Thursday, 26 November

Light snow. High 37°, low 27°.

Pressure30.15 inHg

Wind3.4 mph SW

Humidity96%

Visibility—

Dew point34°

Fri, 2734° / 18°

34 °

Byrne, Friday, 27 November

Overcast. High 34°, low 18°.

Pressure30.18 inHg

Wind3.7 mph SE

Humidity89%

Visibility—

Dew point25°

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.