As of 22:26 MDT

Weather in Byrne, MT

37°

Byrne, Friday, 30 October, 22:26

Overcast. Feels like 37°. High 41°, low 29°.

Pressure29.94 inHg

Wind0.3 mph E

Humidity90%

Visibility6.2 mi

Dew point34°

See detailed hourly forecast

Monthly outlook for Byrne, MT: average high 50.4°, average low 32.9°. That is 6.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 9 November (64°), the coolest 12 November (26.6°).

50.4°/32.9°

Average high / low

+6.7°

Above normal

3 / 5

Wet days / normal

0.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
30 October – 8 November	50°	39.7°	+5.7°
9 November – 18 November	51.1°	35.6°	+8.6°
19 November – 28 November	at normal	30.4°	—

October records over 66 years

78.4°3 October 2010All-time high

-16.4°29 October 2019All-time low

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

Sat, 3146° / 33°

46 °

Byrne, Saturday, 31 October

Overcast. High 46°, low 33°.

Pressure30.03 inHg

Wind0.6 mph NE

Humidity84%

Visibility6.2 mi

Dew point39°

Sun, 0144° / 32°

0.11

44 °

Byrne, Sunday, 1 November

Light rain. High 44°, low 32°.

Pressure29.94 inHg

Wind2.2 mph NW

Humidity97%

Visibility6.2 mi

Dew point38°

Mon, 0247° / 33°

47 °

Byrne, Monday, 2 November

Mostly clear. High 47°, low 33°.

Pressure30.39 inHg

Wind3.4 mph NW

Humidity80%

Visibility6.2 mi

Dew point34°

Tue, 0351° / 32°

51 °

Byrne, Tuesday, 3 November

Overcast. High 51°, low 32°.

Pressure30.33 inHg

Wind0.8 mph N

Humidity65%

Visibility6.2 mi

Dew point29°

Wed, 0457° / 35°

57 °

Byrne, Wednesday, 4 November

Clear. High 57°, low 35°.

Pressure30.15 inHg

Wind4.4 mph SE

Humidity55%

Visibility—

Dew point32°

Thu, 0552° / 34°

52 °

Byrne, Thursday, 5 November

Overcast. High 52°, low 34°.

Pressure29.91 inHg

Wind2.8 mph SE

Humidity59%

Visibility—

Dew point31°

Fri, 0652° / 33°

0.04

52 °

Byrne, Friday, 6 November

Light rain. High 52°, low 33°.

Pressure29.77 inHg

Wind9.8 mph W

Humidity60%

Visibility—

Dew point35°

Sat, 0750° / 30°

50 °

Byrne, Saturday, 7 November

Partly cloudy. High 50°, low 30°.

Pressure30.33 inHg

Wind4.5 mph SW

Humidity45%

Visibility—

Dew point22°

Sun, 0861° / 35°

61 °

Byrne, Sunday, 8 November

Partly cloudy. High 61°, low 35°.

Pressure30.24 inHg

Wind3.7 mph S

Humidity42%

Visibility—

Dew point29°

Mon, 0964° / 43°

64 °

Byrne, Monday, 9 November

Overcast. High 64°, low 43°.

Pressure30.15 inHg

Wind3.8 mph S

Humidity42%

Visibility—

Dew point32°

Tue, 1053° / 38°

53 °

Byrne, Tuesday, 10 November

Overcast. High 53°, low 38°.

Pressure30.09 inHg

Wind7.5 mph W

Humidity53%

Visibility—

Dew point32°

Wed, 1146° / 29°

0.07

46 °

Byrne, Wednesday, 11 November

Snow. High 46°, low 29°.

Pressure29.97 inHg

Wind11.2 mph W

Humidity76%

Visibility—

Dew point38°

Thu, 1247° / 27°

47 °

Byrne, Thursday, 12 November

Clear. High 47°, low 27°.

Pressure30.36 inHg

Wind4 mph SW

Humidity47%

Visibility—

Dew point20°

Fri, 1349° / 30°

49 °

Byrne, Friday, 13 November

Overcast. High 49°, low 30°.

Pressure30.00 inHg

Wind3.6 mph SE

Humidity24%

Visibility—

Dew point8°

Sat, 1448° / 34°

48 °

Byrne, Saturday, 14 November

Overcast. High 48°, low 34°.

Pressure29.94 inHg

Wind2.7 mph W

Humidity45%

Visibility—

Dew point23°

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

Sun, 1536° / 19°

0.02

36 °

Byrne, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high36°

Average low19°

Average precipitation0.02 in

Chance of precipitation13%

Record high56° (2021)

Record low-4° (2014)

Mon, 1636° / 20°

0.06

36 °

Byrne, Monday, 16 November

Climate normal for this date — 60-year average.

Average high36°

Average low20°

Average precipitation0.06 in

Chance of precipitation35%

Record high49° (2001)

Record low-16° (1961)

Tue, 1734° / 19°

0.06

34 °

Byrne, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high34°

Average low19°

Average precipitation0.06 in

Chance of precipitation47%

Record high51° (1976)

Record low-15° (1968)

Wed, 1833° / 18°

0.07

33 °

Byrne, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high33°

Average low18°

Average precipitation0.07 in

Chance of precipitation43%

Record high51° (2008)

Record low-11° (2022)

Thu, 1933° / 17°

0.07

33 °

Byrne, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high33°

Average low17°

Average precipitation0.07 in

Chance of precipitation28%

Record high48° (1989)

Record low-10° (1985)

Fri, 2033° / 17°

0.05

33 °

Byrne, Friday, 20 November

Climate normal for this date — 60-year average.

Average high33°

Average low17°

Average precipitation0.05 in

Chance of precipitation32%

Record high48° (1989)

Record low-9° (1977)

Sat, 2132° / 15°

0.05

32 °

Byrne, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high32°

Average low15°

Average precipitation0.05 in

Chance of precipitation32%

Record high50° (2002)

Record low-15° (1977)

Sun, 2231° / 15°

0.06

31 °

Byrne, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high31°

Average low15°

Average precipitation0.06 in

Chance of precipitation33%

Record high45° (2017)

Record low-30° (1970)

Mon, 2331° / 14°

0.05

31 °

Byrne, Monday, 23 November

Climate normal for this date — 60-year average.

Average high31°

Average low14°

Average precipitation0.05 in

Chance of precipitation38%

Record high48° (2017)

Record low-19° (1993)

Tue, 2430° / 16°

0.09

30 °

Byrne, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high30°

Average low16°

Average precipitation0.09 in

Chance of precipitation43%

Record high43° (1976)

Record low-16° (2010)

Wed, 2529° / 15°

0.1

29 °

Byrne, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high29°

Average low15°

Average precipitation0.1 in

Chance of precipitation50%

Record high46° (2022)

Record low-16° (2010)

Thu, 2629° / 12°

0.07

29 °

Byrne, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high29°

Average low12°

Average precipitation0.07 in

Chance of precipitation38%

Record high46° (2017)

Record low-12° (2015)

Fri, 2729° / 13°

0.05

29 °

Byrne, Friday, 27 November

Climate normal for this date — 60-year average.

Average high29°

Average low13°

Average precipitation0.05 in

Chance of precipitation37%

Record high47° (2017)

Record low-16° (1967)

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)

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.