As of 08:28 MDT

Weather in Glengarry, MT

50°Current weather

Glengarry, Friday, 9 October, 08:28

Overcast. Feels like 47°. High 80°, low 49°.

Pressure29.65 inHg
Wind6.8 mph S
Humidity39%
Visibility6.2 mi
Dew point27°

Monthly outlook for Glengarry, MT: average high 55.3°, average low 37.2°. That is 0.1° below the climate normal for October. Precipitation is expected on 6 days (about 1.5 inches), against a normal of 4 days and 0.8 inches. The warmest day looks like 9 October (80°), the coolest 13 October (21.6°).

55.3°/37.2°
Average high / low
−0.1°
Below normal
6 / 4
Wet days / normal
1.5 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 October – 18 October51.4°55.7°-2.4°
19 October – 28 October61.8°53.6°+4.5°
29 October – 7 Novemberat normal47.1°—

October records over 66 years

87.4°1 October 2011All-time high
-16.4°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Lewistown (5 mi).

Sat, 1054° / 35°0.31Rain
54 °Rain

Glengarry, Saturday, 10 October

Rain. High 54°, low 35°.

Pressure29.65 inHg
Wind6.8 mph N
Humidity46%
Visibility6.2 mi
Dew point35°
Sun, 1138° / 32°0.56Snow
38 °Snow

Glengarry, Sunday, 11 October

Snow. High 38°, low 32°.

Pressure30.06 inHg
Wind6.5 mph NE
Humidity93%
Visibility3.6 mi
Dew point35°
Mon, 1233° / 28°0.48Snow
33 °Snow

Glengarry, Monday, 12 October

Snow. High 33°, low 28°.

Pressure30.21 inHg
Wind3.2 mph NW
Humidity97%
Visibility6.2 mi
Dew point30°
Tue, 1339° / 22°0Clear
39 °Clear

Glengarry, Tuesday, 13 October

Clear. High 39°, low 22°.

Pressure30.12 inHg
Wind4.8 mph SE
Humidity86%
Visibility—
Dew point29°
Wed, 1451° / 26°0Clear
51 °Clear

Glengarry, Wednesday, 14 October

Clear. High 51°, low 26°.

Pressure30.00 inHg
Wind6 mph W
Humidity64%
Visibility—
Dew point30°
Thu, 1544° / 37°0.05Light rain
44 °Light rain

Glengarry, Thursday, 15 October

Light rain. High 44°, low 37°.

Pressure30.33 inHg
Wind14.8 mph NW
Humidity63%
Visibility—
Dew point31°
Fri, 1648° / 27°0Mostly clear
48 °Mostly clear

Glengarry, Friday, 16 October

Mostly clear. High 48°, low 27°.

Pressure30.62 inHg
Wind14.4 mph NW
Humidity36%
Visibility—
Dew point13°
Sat, 1766° / 41°0Clear
66 °Clear

Glengarry, Saturday, 17 October

Clear. High 66°, low 41°.

Pressure30.00 inHg
Wind20.7 mph NW
Humidity23%
Visibility—
Dew point25°
Sun, 1862° / 42°0Overcast
62 °Overcast

Glengarry, Sunday, 18 October

Overcast. High 62°, low 42°.

Pressure29.97 inHg
Wind6.6 mph S
Humidity28%
Visibility—
Dew point23°
Mon, 1970° / 49°0Partly cloudy
70 °Partly cloudy

Glengarry, Monday, 19 October

Partly cloudy. High 70°, low 49°.

Pressure29.74 inHg
Wind6.8 mph S
Humidity18%
Visibility—
Dew point21°
Tue, 2055° / 43°0Clear
55 °Clear

Glengarry, Tuesday, 20 October

Clear. High 55°, low 43°.

Pressure30.09 inHg
Wind11.7 mph NW
Humidity42%
Visibility—
Dew point30°
Wed, 2163° / 43°0.04Light rain
63 °Light rain

Glengarry, Wednesday, 21 October

Light rain. High 63°, low 43°.

Pressure29.88 inHg
Wind19.8 mph W
Humidity22%
Visibility—
Dew point21°
Thu, 2247° / 36°0.04Light rain
47 °Light rain

Glengarry, Thursday, 22 October

Light rain. High 47°, low 36°.

Pressure30.45 inHg
Wind14 mph NW
Humidity51%
Visibility—
Dew point26°
Fri, 2364° / 35°0Mostly clear
64 °Mostly clear

Glengarry, Friday, 23 October

Mostly clear. High 64°, low 35°.

Pressure30.06 inHg
Wind7.6 mph S
Humidity24%
Visibility—
Dew point17°
Sat, 2471° / 49°0Clear
71 °Clear

Glengarry, Saturday, 24 October

Clear. High 71°, low 49°.

Pressure29.91 inHg
Wind6.9 mph S
Humidity17%
Visibility—
Dew point18°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2553° / 35°0.04Climate normal
53 °Climate normal

Glengarry, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high53°
Average low35°
Average precipitation0.04 in
Chance of precipitation23%
Record high73° (1990)
Record low-2° (2020)
Mon, 2652° / 34°0.06Climate normal
52 °Climate normal

Glengarry, Monday, 26 October

Climate normal for this date — 60-year average.

Average high52°
Average low34°
Average precipitation0.06 in
Chance of precipitation32%
Record high71° (1960)
Record low4° (2020)
Tue, 2751° / 32°0.05Climate normal
51 °Climate normal

Glengarry, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high51°
Average low32°
Average precipitation0.05 in
Chance of precipitation28%
Record high70° (2024)
Record low-3° (2023)
Wed, 2850° / 32°0.06Climate normal
50 °Climate normal

Glengarry, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high50°
Average low32°
Average precipitation0.06 in
Chance of precipitation25%
Record high71° (1990)
Record low1° (2023)
Thu, 2948° / 31°0.04Climate normal
48 °Climate normal

Glengarry, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high48°
Average low31°
Average precipitation0.04 in
Chance of precipitation22%
Record high72° (1968)
Record low-5° (1991)
Fri, 3048° / 29°0.04Climate normal
48 °Climate normal

Glengarry, Friday, 30 October

Climate normal for this date — 60-year average.

Average high48°
Average low29°
Average precipitation0.04 in
Chance of precipitation27%
Record high68° (1987)
Record low-16° (1991)
Sat, 3148° / 30°0.05Climate normal
48 °Climate normal

Glengarry, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high48°
Average low30°
Average precipitation0.05 in
Chance of precipitation22%
Record high69° (2008)
Record low0° (1984)
Sun, 0147° / 30°0.03Climate normal
47 °Climate normal

Glengarry, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high47°
Average low30°
Average precipitation0.03 in
Chance of precipitation20%
Record high69° (2025)
Record low-5° (1991)
Mon, 0247° / 29°0.02Climate normal
47 °Climate normal

Glengarry, Monday, 2 November

Climate normal for this date — 60-year average.

Average high47°
Average low29°
Average precipitation0.02 in
Chance of precipitation20%
Record high68° (2020)
Record low-16° (1991)
Tue, 0348° / 30°0.05Climate normal
48 °Climate normal

Glengarry, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high48°
Average low30°
Average precipitation0.05 in
Chance of precipitation22%
Record high68° (1981)
Record low-9° (1991)
Wed, 0448° / 30°0.05Climate normal
48 °Climate normal

Glengarry, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high48°
Average low30°
Average precipitation0.05 in
Chance of precipitation23%
Record high69° (1976)
Record low-4° (2003)
Thu, 0547° / 30°0.07Climate normal
47 °Climate normal

Glengarry, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high47°
Average low30°
Average precipitation0.07 in
Chance of precipitation30%
Record high69° (2010)
Record low-15° (2003)
Fri, 0646° / 28°0.03Climate normal
46 °Climate normal

Glengarry, Friday, 6 November

Climate normal for this date — 60-year average.

Average high46°
Average low28°
Average precipitation0.03 in
Chance of precipitation18%
Record high69° (2010)
Record low-3° (2003)
Sat, 0745° / 28°0.02Climate normal
45 °Climate normal

Glengarry, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high45°
Average low28°
Average precipitation0.02 in
Chance of precipitation25%
Record high70° (1999)
Record low-4° (1973)

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 Glengarry, 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 Glengarry, 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.