As of 06:06 MDT

Weather in Plains, MT

45°Current weather

Plains, Friday, 9 October, 06:06

Overcast. Feels like 45°. High 70°, low 44°.

Pressure29.65 inHg
Wind1.9 mph W
Humidity75%
Visibility6.2 mi
Dew point37°

Monthly outlook for Plains, MT: average high 54.9°, average low 35.4°. That is 2.2° below 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 17 October (71.6°), the coolest 13 October (23.4°).

54.9°/35.4°
Average high / low
−2.2°
Below normal
4 / 5
Wet days / normal
1.6 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 October – 18 October55.3°59.7°-2.5°
19 October – 28 October54.1°55.6°-0.8°
29 October – 7 Novemberat normal48.9°—

October records over 66 years

85.8°1 October 1997All-time high
0.1°26 October 2020All-time low

Climate normals and records are computed from the nearest reference point — Paradise (6 mi).

Sat, 1054° / 36°0Light rain
54 °Light rain

Plains, Saturday, 10 October

Light rain. High 54°, low 36°.

Pressure29.77 inHg
Wind3.7 mph W
Humidity51%
Visibility6.2 mi
Dew point26°
Sun, 1138° / 32°0.28Snow
38 °Snow

Plains, Sunday, 11 October

Snow. High 38°, low 32°.

Pressure30.03 inHg
Wind7.2 mph NE
Humidity90%
Visibility1.8 mi
Dew point27°
Mon, 1242° / 29°0.07Light snow
42 °Light snow

Plains, Monday, 12 October

Light snow. High 42°, low 29°.

Pressure30.09 inHg
Wind1.7 mph E
Humidity77%
Visibility6.2 mi
Dew point26°
Tue, 1349° / 23°0Clear
49 °Clear

Plains, Tuesday, 13 October

Clear. High 49°, low 23°.

Pressure30.12 inHg
Wind4.3 mph W
Humidity64%
Visibility—
Dew point29°
Wed, 1452° / 31°0Overcast
52 °Overcast

Plains, Wednesday, 14 October

Overcast. High 52°, low 31°.

Pressure30.12 inHg
Wind9.1 mph W
Humidity71%
Visibility—
Dew point34°
Thu, 1550° / 37°0Light rain
50 °Light rain

Plains, Thursday, 15 October

Light rain. High 50°, low 37°.

Pressure30.42 inHg
Wind5.5 mph W
Humidity64%
Visibility—
Dew point37°
Fri, 1660° / 32°0Overcast
60 °Overcast

Plains, Friday, 16 October

Overcast. High 60°, low 32°.

Pressure30.45 inHg
Wind2.6 mph E
Humidity52%
Visibility—
Dew point31°
Sat, 1772° / 40°0Overcast
72 °Overcast

Plains, Saturday, 17 October

Overcast. High 72°, low 40°.

Pressure30.18 inHg
Wind6 mph SW
Humidity26%
Visibility—
Dew point25°
Sun, 1867° / 43°0Overcast
67 °Overcast

Plains, Sunday, 18 October

Overcast. High 67°, low 43°.

Pressure30.06 inHg
Wind4.8 mph SW
Humidity34%
Visibility—
Dew point29°
Mon, 1967° / 44°0Overcast
67 °Overcast

Plains, Monday, 19 October

Overcast. High 67°, low 44°.

Pressure29.91 inHg
Wind4.7 mph W
Humidity35%
Visibility—
Dew point33°
Tue, 2048° / 40°1.13Snow
48 °Snow

Plains, Tuesday, 20 October

Snow. High 48°, low 40°.

Pressure30.03 inHg
Wind4 mph S
Humidity99%
Visibility—
Dew point41°
Wed, 2149° / 40°0.06Light snow
49 °Light snow

Plains, Wednesday, 21 October

Light snow. High 49°, low 40°.

Pressure30.33 inHg
Wind1.3 mph NW
Humidity95%
Visibility—
Dew point42°
Thu, 2252° / 29°0Partly cloudy
52 °Partly cloudy

Plains, Thursday, 22 October

Partly cloudy. High 52°, low 29°.

Pressure30.21 inHg
Wind1.6 mph NW
Humidity80%
Visibility—
Dew point39°
Fri, 2354° / 32°0Mostly clear
54 °Mostly clear

Plains, Friday, 23 October

Mostly clear. High 54°, low 32°.

Pressure30.03 inHg
Wind1.8 mph W
Humidity76%
Visibility—
Dew point39°
Sat, 2455° / 34°0Overcast
55 °Overcast

Plains, Saturday, 24 October

Overcast. High 55°, low 34°.

Pressure30.06 inHg
Wind2.5 mph W
Humidity83%
Visibility—
Dew point41°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2555° / 36°0.07Climate normal
55 °Climate normal

Plains, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high55°
Average low36°
Average precipitation0.07 in
Chance of precipitation37%
Record high70° (2005)
Record low1° (2020)
Mon, 2653° / 36°0.07Climate normal
53 °Climate normal

Plains, Monday, 26 October

Climate normal for this date — 60-year average.

Average high53°
Average low36°
Average precipitation0.07 in
Chance of precipitation40%
Record high71° (1986)
Record low0° (2020)
Tue, 2752° / 35°0.07Climate normal
52 °Climate normal

Plains, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high52°
Average low35°
Average precipitation0.07 in
Chance of precipitation37%
Record high67° (1985)
Record low13° (2020)
Wed, 2852° / 35°0.07Climate normal
52 °Climate normal

Plains, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high52°
Average low35°
Average precipitation0.07 in
Chance of precipitation37%
Record high69° (2008)
Record low18° (1971)
Thu, 2951° / 35°0.07Climate normal
51 °Climate normal

Plains, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high51°
Average low35°
Average precipitation0.07 in
Chance of precipitation43%
Record high70° (1987)
Record low16° (1961)
Fri, 3050° / 34°0.06Climate normal
50 °Climate normal

Plains, Friday, 30 October

Climate normal for this date — 60-year average.

Average high50°
Average low34°
Average precipitation0.06 in
Chance of precipitation28%
Record high70° (2008)
Record low10° (2002)
Sat, 3149° / 35°0.1Climate normal
49 °Climate normal

Plains, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.1 in
Chance of precipitation42%
Record high69° (1988)
Record low16° (2002)
Sun, 0150° / 34°0.09Climate normal
50 °Climate normal

Plains, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high50°
Average low34°
Average precipitation0.09 in
Chance of precipitation37%
Record high68° (1965)
Record low8° (1984)
Mon, 0249° / 34°0.09Climate normal
49 °Climate normal

Plains, Monday, 2 November

Climate normal for this date — 60-year average.

Average high49°
Average low34°
Average precipitation0.09 in
Chance of precipitation37%
Record high65° (1981)
Record low3° (1961)
Tue, 0349° / 34°0.04Climate normal
49 °Climate normal

Plains, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high49°
Average low34°
Average precipitation0.04 in
Chance of precipitation25%
Record high67° (2020)
Record low6° (1973)
Wed, 0449° / 35°0.1Climate normal
49 °Climate normal

Plains, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high49°
Average low35°
Average precipitation0.1 in
Chance of precipitation48%
Record high65° (1980)
Record low6° (1961)
Thu, 0548° / 34°0.09Climate normal
48 °Climate normal

Plains, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high48°
Average low34°
Average precipitation0.09 in
Chance of precipitation47%
Record high67° (1980)
Record low1° (1961)
Fri, 0647° / 33°0.11Climate normal
47 °Climate normal

Plains, Friday, 6 November

Climate normal for this date — 60-year average.

Average high47°
Average low33°
Average precipitation0.11 in
Chance of precipitation48%
Record high66° (2012)
Record low12° (1971)
Sat, 0746° / 33°0.13Climate normal
46 °Climate normal

Plains, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high46°
Average low33°
Average precipitation0.13 in
Chance of precipitation42%
Record high61° (1978)
Record low12° (2017)

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 Plains, 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 Plains, 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.