As of 23:44 MDT

Weather in Perma, MT

47°

Perma, Wednesday, 7 October, 23:44

Clear. Feels like 47°. High 73°, low 40°.

Pressure30.06 inHg

Wind1.3 mph W

Humidity60%

Visibility6.2 mi

Dew point33°

See detailed hourly forecast

Monthly outlook for Perma, MT: average high 54.9°, average low 35°. That is 2.7° below the climate normal for October. Precipitation is expected on 5 days (about 0.7 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 8 October (76°), the coolest 12 October (24.9°).

54.9°/35°

Average high / low

−2.7°

Below normal

5 / 5

Wet days / normal

0.7 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
7 October – 16 October	53.7°	60.6°	-3.9°
17 October – 26 October	56.8°	57°	-0.1°
27 October – 5 November	at normal	49.9°	—

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 (10 mi).

Thu, 0876° / 39°

76 °

Perma, Thursday, 8 October

Partly cloudy. High 76°, low 39°.

Pressure30.03 inHg

Wind2.1 mph N

Humidity30%

Visibility6.2 mi

Dew point34°

Fri, 0968° / 40°

0.06

68 °

Perma, Friday, 9 October

Rain. High 68°, low 40°.

Pressure29.53 inHg

Wind11.2 mph SW

Humidity24%

Visibility6.2 mi

Dew point30°

Sat, 1047° / 34°

0.06

47 °

Perma, Saturday, 10 October

Light rain. High 47°, low 34°.

Pressure29.80 inHg

Wind5.5 mph NW

Humidity49%

Visibility6.2 mi

Dew point28°

Sun, 1138° / 31°

0.02

38 °

Perma, Sunday, 11 October

Light snow. High 38°, low 31°.

Pressure30.15 inHg

Wind10.6 mph NE

Humidity67%

Visibility6.2 mi

Dew point17°

Mon, 1243° / 25°

43 °

Perma, Monday, 12 October

Clear. High 43°, low 25°.

Pressure30.21 inHg

Wind2.6 mph E

Humidity67%

Visibility—

Dew point25°

Tue, 1357° / 26°

57 °

Perma, Tuesday, 13 October

Clear. High 57°, low 26°.

Pressure30.12 inHg

Wind7.5 mph W

Humidity54%

Visibility—

Dew point26°

Wed, 1443° / 39°

0.16

43 °

Perma, Wednesday, 14 October

Snow. High 43°, low 39°.

Pressure29.83 inHg

Wind6.6 mph SW

Humidity81%

Visibility—

Dew point37°

Thu, 1543° / 32°

0.15

43 °

Perma, Thursday, 15 October

Snow. High 43°, low 32°.

Pressure30.39 inHg

Wind3.3 mph NE

Humidity69%

Visibility—

Dew point30°

Fri, 1650° / 27°

50 °

Perma, Friday, 16 October

Mostly clear. High 50°, low 27°.

Pressure30.50 inHg

Wind3.6 mph S

Humidity61%

Visibility—

Dew point29°

Sat, 1757° / 33°

57 °

Perma, Saturday, 17 October

Overcast. High 57°, low 33°.

Pressure30.24 inHg

Wind4.6 mph SW

Humidity46%

Visibility—

Dew point27°

Sun, 1863° / 37°

63 °

Perma, Sunday, 18 October

Overcast. High 63°, low 37°.

Pressure30.06 inHg

Wind9.4 mph W

Humidity36%

Visibility—

Dew point26°

Mon, 1959° / 40°

59 °

Perma, Monday, 19 October

Overcast. High 59°, low 40°.

Pressure30.21 inHg

Wind2.8 mph SW

Humidity49%

Visibility—

Dew point32°

Tue, 2063° / 39°

63 °

Perma, Tuesday, 20 October

Overcast. High 63°, low 39°.

Pressure30.12 inHg

Wind5.6 mph SW

Humidity42%

Visibility—

Dew point30°

Wed, 2151° / 44°

0.28

51 °

Perma, Wednesday, 21 October

Rain. High 51°, low 44°.

Pressure29.80 inHg

Wind19.1 mph SW

Humidity75%

Visibility—

Dew point42°

Thu, 2248° / 33°

0.01

48 °

Perma, Thursday, 22 October

Light snow. High 48°, low 33°.

Pressure29.97 inHg

Wind16.6 mph W

Humidity38%

Visibility—

Dew point20°

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

Fri, 2356° / 38°

0.08

56 °

Perma, Friday, 23 October

Climate normal for this date — 60-year average.

Average high56°

Average low38°

Average precipitation0.08 in

Chance of precipitation40%

Record high72° (1960)

Record low27° (2020)

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)

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.