As of 23:17 MDT

Weather in Plains, MT

43°Current weather

Plains, Saturday, 10 October, 23:17

Light rain. Feels like 39°. High 49°, low 42°.

Pressure29.91 inHg
Wind5.4 mph NE
Humidity89%
Visibility3.1 mi
Dew point39°

Monthly outlook for Plains, MT: average high 61.3°, average low 39.2°. That is 1.7° above the climate normal for October. Precipitation is expected on 2 days (about 0.2 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 17 October (74.3°), the coolest 13 October (25.7°).

61.3°/39.2°
Average high / low
+1.7°
Above normal
2 / 5
Wet days / normal
0.2 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
10 October – 19 October58.8°59.3°-0.3°
20 October – 29 October65.5°54.7°+6°
30 October – 8 Novemberat normal48.4°—

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).

Sun, 1142° / 34°0.12Snow
42 °Snow

Plains, Sunday, 11 October

Snow. High 42°, low 34°.

Pressure30.03 inHg
Wind5.2 mph N
Humidity88%
Visibility4.8 mi
Dew point27°
Mon, 1246° / 31°0.02Light snow
46 °Light snow

Plains, Monday, 12 October

Light snow. High 46°, low 31°.

Pressure30.12 inHg
Wind1.2 mph E
Humidity80%
Visibility6.2 mi
Dew point27°
Tue, 1353° / 26°0Clear
53 °Clear

Plains, Tuesday, 13 October

Clear. High 53°, low 26°.

Pressure30.18 inHg
Wind1.6 mph SW
Humidity59%
Visibility6.2 mi
Dew point30°
Wed, 1459° / 32°0Overcast
59 °Overcast

Plains, Wednesday, 14 October

Overcast. High 59°, low 32°.

Pressure30.24 inHg
Wind1.7 mph S
Humidity49%
Visibility6.2 mi
Dew point31°
Thu, 1560° / 33°0Clear
60 °Clear

Plains, Thursday, 15 October

Clear. High 60°, low 33°.

Pressure30.47 inHg
Wind3.8 mph E
Humidity52%
Visibility—
Dew point34°
Fri, 1664° / 37°0Mostly clear
64 °Mostly clear

Plains, Friday, 16 October

Mostly clear. High 64°, low 37°.

Pressure30.36 inHg
Wind2.8 mph NE
Humidity53%
Visibility—
Dew point36°
Sat, 1774° / 44°0Overcast
74 °Overcast

Plains, Saturday, 17 October

Overcast. High 74°, low 44°.

Pressure30.12 inHg
Wind10.8 mph SW
Humidity33%
Visibility—
Dew point34°
Sun, 1873° / 47°0Partly cloudy
73 °Partly cloudy

Plains, Sunday, 18 October

Partly cloudy. High 73°, low 47°.

Pressure30.06 inHg
Wind10.1 mph W
Humidity31%
Visibility—
Dew point34°
Mon, 1969° / 48°0Mostly clear
69 °Mostly clear

Plains, Monday, 19 October

Mostly clear. High 69°, low 48°.

Pressure30.03 inHg
Wind11 mph W
Humidity33%
Visibility—
Dew point35°
Tue, 2059° / 45°0Overcast
59 °Overcast

Plains, Tuesday, 20 October

Overcast. High 59°, low 45°.

Pressure30.06 inHg
Wind12.7 mph SW
Humidity43%
Visibility—
Dew point34°
Wed, 2159° / 37°0Overcast
59 °Overcast

Plains, Wednesday, 21 October

Overcast. High 59°, low 37°.

Pressure30.18 inHg
Wind3.5 mph E
Humidity41%
Visibility—
Dew point29°
Thu, 2265° / 39°0Overcast
65 °Overcast

Plains, Thursday, 22 October

Overcast. High 65°, low 39°.

Pressure30.21 inHg
Wind4.1 mph E
Humidity37%
Visibility—
Dew point28°
Fri, 2368° / 42°0Partly cloudy
68 °Partly cloudy

Plains, Friday, 23 October

Partly cloudy. High 68°, low 42°.

Pressure30.18 inHg
Wind3.3 mph E
Humidity39%
Visibility—
Dew point33°
Sat, 2472° / 42°0Clear
72 °Clear

Plains, Saturday, 24 October

Clear. High 72°, low 42°.

Pressure30.12 inHg
Wind3.2 mph E
Humidity41%
Visibility—
Dew point35°
Sun, 2570° / 47°0Overcast
70 °Overcast

Plains, Sunday, 25 October

Overcast. High 70°, low 47°.

Pressure30.00 inHg
Wind7.8 mph W
Humidity35%
Visibility—
Dew point34°
From day 17 onward the outlook is built from 60-year climate statistics
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)
Sun, 0846° / 32°0.08Climate normal
46 °Climate normal

Plains, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high46°
Average low32°
Average precipitation0.08 in
Chance of precipitation52%
Record high63° (2016)
Record low10° (1994)

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.