As of 17:25 MDT

Weather in Perma, MT

71°

Perma, Thursday, 8 October, 17:25

Overcast. Feels like 70°. High 71°, low 39°.

Pressure29.91 inHg

Wind2.5 mph E

Humidity34%

Visibility6.2 mi

Dew point42°

See detailed hourly forecast

Monthly outlook for Perma, MT: average high 55.3°, average low 35.6°. That is 2.2° below the climate normal for October. Precipitation is expected on 4 days (about 0.5 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 8 October (71.4°), the coolest 16 October (24.4°).

55.3°/35.6°

Average high / low

−2.2°

Below normal

4 / 5

Wet days / normal

0.5 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 October – 17 October	51.4°	60.2°	-4.9°
18 October – 27 October	61.8°	56.2°	+3.1°
28 October – 6 November	at normal	49.5°	—

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 (10 mi).

Fri, 0969° / 40°

0.03

69 °

Perma, Friday, 9 October

Light rain. High 69°, low 40°.

Pressure29.56 inHg

Wind9.2 mph SW

Humidity25%

Visibility6.2 mi

Dew point32°

Sat, 1052° / 33°

0.05

52 °

Perma, Saturday, 10 October

Snow. High 52°, low 33°.

Pressure29.74 inHg

Wind3.8 mph NW

Humidity46%

Visibility6.2 mi

Dew point30°

Sun, 1141° / 33°

0.07

41 °

Perma, Sunday, 11 October

Light snow. High 41°, low 33°.

Pressure30.06 inHg

Wind9.5 mph NE

Humidity72%

Visibility6.2 mi

Dew point25°

Mon, 1244° / 28°

44 °

Perma, Monday, 12 October

Overcast. High 44°, low 28°.

Pressure30.03 inHg

Wind2.9 mph NE

Humidity67%

Visibility6.2 mi

Dew point27°

Tue, 1352° / 31°

52 °

Perma, Tuesday, 13 October

Clear. High 52°, low 31°.

Pressure30.03 inHg

Wind2.1 mph NE

Humidity56%

Visibility—

Dew point29°

Wed, 1442° / 34°

0.28

42 °

Perma, Wednesday, 14 October

Snow. High 42°, low 34°.

Pressure29.88 inHg

Wind9.6 mph SW

Humidity88%

Visibility—

Dew point35°

Thu, 1543° / 31°

0.07

43 °

Perma, Thursday, 15 October

Light snow. High 43°, low 31°.

Pressure30.56 inHg

Wind5.4 mph NE

Humidity69%

Visibility—

Dew point30°

Fri, 1645° / 24°

45 °

Perma, Friday, 16 October

Clear. High 45°, low 24°.

Pressure30.65 inHg

Wind5 mph NE

Humidity61%

Visibility—

Dew point25°

Sat, 1755° / 28°

55 °

Perma, Saturday, 17 October

Clear. High 55°, low 28°.

Pressure30.33 inHg

Wind3.9 mph E

Humidity43%

Visibility—

Dew point23°

Sun, 1859° / 36°

59 °

Perma, Sunday, 18 October

Clear. High 59°, low 36°.

Pressure30.03 inHg

Wind10.3 mph SW

Humidity52%

Visibility—

Dew point34°

Mon, 1955° / 43°

55 °

Perma, Monday, 19 October

Overcast. High 55°, low 43°.

Pressure30.18 inHg

Wind4.3 mph SW

Humidity68%

Visibility—

Dew point41°

Tue, 2062° / 39°

62 °

Perma, Tuesday, 20 October

Clear. High 62°, low 39°.

Pressure30.18 inHg

Wind3.9 mph SW

Humidity54%

Visibility—

Dew point36°

Wed, 2164° / 43°

64 °

Perma, Wednesday, 21 October

Overcast. High 64°, low 43°.

Pressure30.12 inHg

Wind4 mph SW

Humidity45%

Visibility—

Dew point34°

Thu, 2268° / 43°

68 °

Perma, Thursday, 22 October

Clear. High 68°, low 43°.

Pressure30.09 inHg

Wind4 mph SW

Humidity39%

Visibility—

Dew point33°

Fri, 2364° / 45°

64 °

Perma, Friday, 23 October

Overcast. High 64°, low 45°.

Pressure29.97 inHg

Wind3.5 mph SW

Humidity39%

Visibility—

Dew point32°

From day 17 onward the outlook is built from 60-year climate statistics

Sat, 2455° / 37°

0.06

55 °

Perma, Saturday, 24 October

Climate normal for this date — 60-year average.

Average high55°

Average low37°

Average precipitation0.06 in

Chance of precipitation33%

Record high73° (2007)

Record low13° (2020)

Sun, 2555° / 36°

0.07

55 °

Perma, 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°

0.07

53 °

Perma, 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°

0.07

52 °

Perma, 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°

0.07

52 °

Perma, 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°

0.07

51 °

Perma, 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°

0.06

50 °

Perma, 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°

0.1

49 °

Perma, 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°

0.09

50 °

Perma, 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°

0.09

49 °

Perma, 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°

0.04

49 °

Perma, 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°

0.1

49 °

Perma, 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°

0.09

48 °

Perma, 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°

0.11

47 °

Perma, 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)

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 Perma, 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 Perma, 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.