As of 05:14 MDT

Weather in Byrne, MT

33°Current weather

Byrne, Wednesday, 21 October, 05:14

Clear. Feels like 31°. High 64°, low 32°.

Pressure30.12 inHg
Wind3 mph SE
Humidity89%
Visibility6.2 mi
Dew point30°

Monthly outlook for Byrne, MT: average high 49.5°, average low 30.2°. That is 3.6° above the climate normal for October. Precipitation is expected on 4 days (about 1.6 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 22 October (64°), the coolest 28 October (20.7°).

49.5°/30.2°
Average high / low
+3.6°
Above normal
4 / 5
Wet days / normal
1.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
21 October – 30 October51.8°44.7°+3.9°
31 October – 9 November45.7°39.3°+3.5°
10 November – 19 Novemberat normal35.2°—

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).

Thu, 2264° / 33°0.02Light rain
64 °Light rain

Byrne, Thursday, 22 October

Light rain. High 64°, low 33°.

Pressure29.88 inHg
Wind1.2 mph E
Humidity51%
Visibility6.2 mi
Dew point41°
Fri, 2350° / 40°0.79Rain
50 °Rain

Byrne, Friday, 23 October

Rain. High 50°, low 40°.

Pressure29.85 inHg
Wind6.1 mph W
Humidity99%
Visibility1.5 mi
Dew point45°
Sat, 2450° / 32°0Partly cloudy
50 °Partly cloudy

Byrne, Saturday, 24 October

Partly cloudy. High 50°, low 32°.

Pressure30.33 inHg
Wind2.3 mph E
Humidity71%
Visibility6.2 mi
Dew point28°
Sun, 2556° / 34°0Partly cloudy
56 °Partly cloudy

Byrne, Sunday, 25 October

Partly cloudy. High 56°, low 34°.

Pressure30.24 inHg
Wind5.5 mph SE
Humidity58%
Visibility—
Dew point33°
Mon, 2653° / 32°0.07Snow
53 °Snow

Byrne, Monday, 26 October

Snow. High 53°, low 32°.

Pressure30.18 inHg
Wind4.2 mph E
Humidity63%
Visibility—
Dew point33°
Tue, 2736° / 24°0.02Light snow
36 °Light snow

Byrne, Tuesday, 27 October

Light snow. High 36°, low 24°.

Pressure30.30 inHg
Wind6.1 mph NW
Humidity72%
Visibility—
Dew point24°
Wed, 2844° / 21°0Overcast
44 °Overcast

Byrne, Wednesday, 28 October

Overcast. High 44°, low 21°.

Pressure30.45 inHg
Wind3.1 mph SE
Humidity66%
Visibility—
Dew point25°
Thu, 2948° / 25°0Overcast
48 °Overcast

Byrne, Thursday, 29 October

Overcast. High 48°, low 25°.

Pressure30.21 inHg
Wind3 mph SE
Humidity67%
Visibility—
Dew point29°
Fri, 3053° / 27°0Clear
53 °Clear

Byrne, Friday, 30 October

Clear. High 53°, low 27°.

Pressure29.85 inHg
Wind2.6 mph SE
Humidity56%
Visibility—
Dew point30°
Sat, 3153° / 33°0Overcast
53 °Overcast

Byrne, Saturday, 31 October

Overcast. High 53°, low 33°.

Pressure29.77 inHg
Wind3.1 mph NW
Humidity64%
Visibility—
Dew point35°
Sun, 0155° / 37°0Overcast
55 °Overcast

Byrne, Sunday, 1 November

Overcast. High 55°, low 37°.

Pressure29.83 inHg
Wind3.8 mph NW
Humidity63%
Visibility—
Dew point37°
Mon, 0249° / 38°0.17Light rain
49 °Light rain

Byrne, Monday, 2 November

Light rain. High 49°, low 38°.

Pressure29.68 inHg
Wind3.1 mph W
Humidity66%
Visibility—
Dew point35°
Tue, 0341° / 26°0.54Snow
41 °Snow

Byrne, Tuesday, 3 November

Snow. High 41°, low 26°.

Pressure30.15 inHg
Wind5.3 mph N
Humidity92%
Visibility—
Dew point32°
Wed, 0436° / 28°0Overcast
36 °Overcast

Byrne, Wednesday, 4 November

Overcast. High 36°, low 28°.

Pressure30.30 inHg
Wind2.2 mph E
Humidity56%
Visibility—
Dew point19°
Thu, 0540° / 22°0Mostly clear
40 °Mostly clear

Byrne, Thursday, 5 November

Mostly clear. High 40°, low 22°.

Pressure30.39 inHg
Wind2.2 mph NE
Humidity61%
Visibility—
Dew point23°
From day 17 onward the outlook is built from 60-year climate statistics
Fri, 0639° / 23°0.07Climate normal
39 °Climate normal

Byrne, Friday, 6 November

Climate normal for this date — 60-year average.

Average high39°
Average low23°
Average precipitation0.07 in
Chance of precipitation47%
Record high57° (2012)
Record low4° (1961)
Sat, 0738° / 23°0.07Climate normal
38 °Climate normal

Byrne, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high38°
Average low23°
Average precipitation0.07 in
Chance of precipitation47%
Record high53° (2010)
Record low-1° (1961)
Sun, 0837° / 21°0.06Climate normal
37 °Climate normal

Byrne, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high37°
Average low21°
Average precipitation0.06 in
Chance of precipitation38%
Record high57° (2016)
Record low-11° (1994)
Mon, 0937° / 21°0.06Climate normal
37 °Climate normal

Byrne, Monday, 9 November

Climate normal for this date — 60-year average.

Average high37°
Average low21°
Average precipitation0.06 in
Chance of precipitation33%
Record high57° (2016)
Record low-7° (1986)
Tue, 1036° / 20°0.04Climate normal
36 °Climate normal

Byrne, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high36°
Average low20°
Average precipitation0.04 in
Chance of precipitation30%
Record high55° (2016)
Record low-33° (1986)
Wed, 1136° / 19°0.05Climate normal
36 °Climate normal

Byrne, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high36°
Average low19°
Average precipitation0.05 in
Chance of precipitation28%
Record high56° (2016)
Record low-20° (2000)
Thu, 1237° / 20°0.05Climate normal
37 °Climate normal

Byrne, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high37°
Average low20°
Average precipitation0.05 in
Chance of precipitation33%
Record high58° (1999)
Record low-15° (1986)
Fri, 1336° / 20°0.07Climate normal
36 °Climate normal

Byrne, Friday, 13 November

Climate normal for this date — 60-year average.

Average high36°
Average low20°
Average precipitation0.07 in
Chance of precipitation40%
Record high57° (2025)
Record low-6° (2000)
Sat, 1435° / 20°0.06Climate normal
35 °Climate normal

Byrne, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high35°
Average low20°
Average precipitation0.06 in
Chance of precipitation33%
Record high54° (1999)
Record low-10° (2000)
Sun, 1536° / 19°0.02Climate normal
36 °Climate normal

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°0.06Climate normal
36 °Climate normal

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°0.06Climate normal
34 °Climate normal

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°0.07Climate normal
33 °Climate normal

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°0.07Climate normal
33 °Climate normal

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)

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.