As of 13:20 MDT

Weather in Byrne, MT

39°Current weather

Byrne, Saturday, 31 October, 13:20

Overcast. Feels like 39°. High 43°, low 33°.

Pressure30.03 inHg
Wind1.2 mph N
Humidity87%
Visibility6.2 mi
Dew point35°

Monthly outlook for Byrne, MT: average high 50.8°, average low 35.3°. That is 7° above the climate normal for October. Precipitation is expected on 4 days (about 0.4 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 8 November (61°), the coolest 6 November (30.8°).

50.8°/35.3°
Average high / low
+7°
Above normal
4 / 5
Wet days / normal
0.4 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
31 October – 9 November49.3°39.3°+5.5°
10 November – 19 November53.2°35.2°+10°
20 November – 29 Novemberat normal30°—

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).

Sun, 0139° / 34°0.15Rain
39 °Rain

Byrne, Sunday, 1 November

Rain. High 39°, low 34°.

Pressure29.94 inHg
Wind2 mph W
Humidity98%
Visibility6.2 mi
Dew point38°
Mon, 0246° / 32°0Overcast
46 °Overcast

Byrne, Monday, 2 November

Overcast. High 46°, low 32°.

Pressure30.39 inHg
Wind3.1 mph W
Humidity83%
Visibility6.2 mi
Dew point33°
Tue, 0352° / 31°0Overcast
52 °Overcast

Byrne, Tuesday, 3 November

Overcast. High 52°, low 31°.

Pressure30.21 inHg
Wind0.8 mph NE
Humidity64%
Visibility6.2 mi
Dew point29°
Wed, 0451° / 36°0Overcast
51 °Overcast

Byrne, Wednesday, 4 November

Overcast. High 51°, low 36°.

Pressure30.03 inHg
Wind1 mph NW
Humidity61%
Visibility6.2 mi
Dew point30°
Thu, 0545° / 33°0Light rain
45 °Light rain

Byrne, Thursday, 5 November

Light rain. High 45°, low 33°.

Pressure30.12 inHg
Wind5 mph NW
Humidity66%
Visibility—
Dew point33°
Fri, 0647° / 31°0.04Light rain
47 °Light rain

Byrne, Friday, 6 November

Light rain. High 47°, low 31°.

Pressure29.83 inHg
Wind19 mph W
Humidity59%
Visibility—
Dew point32°
Sat, 0755° / 31°0Partly cloudy
55 °Partly cloudy

Byrne, Saturday, 7 November

Partly cloudy. High 55°, low 31°.

Pressure30.15 inHg
Wind4.3 mph S
Humidity35%
Visibility—
Dew point20°
Sun, 0861° / 38°0Overcast
61 °Overcast

Byrne, Sunday, 8 November

Overcast. High 61°, low 38°.

Pressure29.97 inHg
Wind4.3 mph S
Humidity37%
Visibility—
Dew point26°
Mon, 0953° / 39°0.11Light rain
53 °Light rain

Byrne, Monday, 9 November

Light rain. High 53°, low 39°.

Pressure30.03 inHg
Wind4.9 mph NW
Humidity51%
Visibility—
Dew point31°
Tue, 1052° / 35°0Clear
52 °Clear

Byrne, Tuesday, 10 November

Clear. High 52°, low 35°.

Pressure30.24 inHg
Wind4 mph S
Humidity64%
Visibility—
Dew point34°
Wed, 1157° / 39°0Overcast
57 °Overcast

Byrne, Wednesday, 11 November

Overcast. High 57°, low 39°.

Pressure29.94 inHg
Wind5.6 mph W
Humidity52%
Visibility—
Dew point33°
Thu, 1257° / 40°0.05Light rain
57 °Light rain

Byrne, Thursday, 12 November

Light rain. High 57°, low 40°.

Pressure29.77 inHg
Wind18.1 mph SW
Humidity56%
Visibility—
Dew point37°
Fri, 1349° / 37°0Overcast
49 °Overcast

Byrne, Friday, 13 November

Overcast. High 49°, low 37°.

Pressure30.15 inHg
Wind3.5 mph SW
Humidity81%
Visibility—
Dew point39°
Sat, 1456° / 39°0Overcast
56 °Overcast

Byrne, Saturday, 14 November

Overcast. High 56°, low 39°.

Pressure29.94 inHg
Wind3.3 mph SW
Humidity62%
Visibility—
Dew point36°
Sun, 1549° / 37°0.03Light rain
49 °Light rain

Byrne, Sunday, 15 November

Light rain. High 49°, low 37°.

Pressure29.97 inHg
Wind6.3 mph W
Humidity54%
Visibility—
Dew point32°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sat, 2829° / 13°0.06Climate normal
29 °Climate normal

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°0.05Climate normal
28 °Climate normal

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)

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.