As of 02:16 MDT

Weather in Byrne, MT

31°Current weather

Byrne, Thursday, 29 October, 02:16

Overcast. Feels like 31°. High 49°, low 31°.

Pressure30.06 inHg
Wind0.5 mph E
Humidity92%
Visibility6.2 mi
Dew point30°

Monthly outlook for Byrne, MT: average high 51°, average low 34.5°. That is 6.7° above the climate normal for October. Precipitation is expected on 3 days (about 0.4 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 12 November (56.8°), the coolest 9 November (28.4°).

51°/34.5°
Average high / low
+6.7°
Above normal
3 / 5
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
29 October – 7 November51.3°40.2°+6.2°
8 November – 17 November50.4°36°+8°
18 November – 27 Novemberat normal30.9°—

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).

Fri, 3050° / 34°0.11Rain
50 °Rain

Byrne, Friday, 30 October

Rain. High 50°, low 34°.

Pressure30.03 inHg
Wind1.1 mph E
Humidity78%
Visibility6.2 mi
Dew point31°
Sat, 3153° / 39°0Overcast
53 °Overcast

Byrne, Saturday, 31 October

Overcast. High 53°, low 39°.

Pressure30.03 inHg
Wind1.3 mph NW
Humidity77%
Visibility6.2 mi
Dew point39°
Sun, 0147° / 38°0.03Light rain
47 °Light rain

Byrne, Sunday, 1 November

Light rain. High 47°, low 38°.

Pressure30.06 inHg
Wind3 mph W
Humidity94%
Visibility6.2 mi
Dew point39°
Mon, 0250° / 34°0Mostly clear
50 °Mostly clear

Byrne, Monday, 2 November

Mostly clear. High 50°, low 34°.

Pressure30.39 inHg
Wind3.5 mph NW
Humidity70%
Visibility—
Dew point35°
Tue, 0355° / 34°0Partly cloudy
55 °Partly cloudy

Byrne, Tuesday, 3 November

Partly cloudy. High 55°, low 34°.

Pressure30.24 inHg
Wind3.6 mph N
Humidity47%
Visibility—
Dew point29°
Wed, 0453° / 36°0Overcast
53 °Overcast

Byrne, Wednesday, 4 November

Overcast. High 53°, low 36°.

Pressure29.97 inHg
Wind3.1 mph E
Humidity45%
Visibility—
Dew point26°
Thu, 0550° / 38°0Overcast
50 °Overcast

Byrne, Thursday, 5 November

Overcast. High 50°, low 38°.

Pressure29.91 inHg
Wind5 mph W
Humidity57%
Visibility—
Dew point32°
Fri, 0652° / 33°0Clear
52 °Clear

Byrne, Friday, 6 November

Clear. High 52°, low 33°.

Pressure30.03 inHg
Wind4.8 mph NW
Humidity46%
Visibility—
Dew point26°
Sat, 0754° / 33°0.09Light rain
54 °Light rain

Byrne, Saturday, 7 November

Light rain. High 54°, low 33°.

Pressure29.91 inHg
Wind11.6 mph SW
Humidity55%
Visibility—
Dew point31°
Sun, 0842° / 29°0.13Snow
42 °Snow

Byrne, Sunday, 8 November

Snow. High 42°, low 29°.

Pressure30.12 inHg
Wind14.9 mph W
Humidity79%
Visibility—
Dew point35°
Mon, 0947° / 28°0Overcast
47 °Overcast

Byrne, Monday, 9 November

Overcast. High 47°, low 28°.

Pressure30.39 inHg
Wind3.8 mph SW
Humidity52%
Visibility—
Dew point24°
Tue, 1054° / 34°0Overcast
54 °Overcast

Byrne, Tuesday, 10 November

Overcast. High 54°, low 34°.

Pressure30.03 inHg
Wind6.4 mph W
Humidity60%
Visibility—
Dew point32°
Wed, 1153° / 38°0Overcast
53 °Overcast

Byrne, Wednesday, 11 November

Overcast. High 53°, low 38°.

Pressure29.91 inHg
Wind3.3 mph SW
Humidity54%
Visibility—
Dew point32°
Thu, 1257° / 36°0Clear
57 °Clear

Byrne, Thursday, 12 November

Clear. High 57°, low 36°.

Pressure29.71 inHg
Wind3.6 mph SE
Humidity41%
Visibility—
Dew point26°
Fri, 1349° / 38°0Overcast
49 °Overcast

Byrne, Friday, 13 November

Overcast. High 49°, low 38°.

Pressure29.53 inHg
Wind4.2 mph SE
Humidity50%
Visibility—
Dew point30°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Fri, 2033° / 17°0.05Climate normal
33 °Climate normal

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°0.05Climate normal
32 °Climate normal

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°0.06Climate normal
31 °Climate normal

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°0.05Climate normal
31 °Climate normal

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°0.09Climate normal
30 °Climate normal

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°0.1Climate normal
29 °Climate normal

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°0.07Climate normal
29 °Climate normal

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°0.05Climate normal
29 °Climate normal

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)

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.