As of 10:16 MST

Weather in Grantsdale, MT

42°

Grantsdale, Monday, 2 November, 10:16

Overcast. Feels like 42°. High 46°, low 36°.

Pressure30.30 inHg

Wind1 mph E

Humidity92%

Visibility6.2 mi

Dew point39°

See detailed hourly forecast

Monthly outlook for Grantsdale, MT: average high 54.2°, average low 35.9°. That is 5.3° above the climate normal for November. Precipitation is expected on 3 days (about 0.3 inches), against a normal of 6 days and 1.1 inches. The warmest day looks like 9 November (65.6°), the coolest 5 November (27.3°).

54.2°/35.9°

Average high / low

+5.3°

Above normal

3 / 6

Wet days / normal

0.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
2 November – 11 November	54.5°	45.9°	+4.8°
12 November – 21 November	53.8°	41.5°	+6.8°
22 November – 1 December	at normal	35.9°	—

November records over 66 years

69.4°1 November 2025All-time high

-17°23 November 1985All-time low

Climate normals and records are computed from the nearest reference point — Corvallis (8 mi).

Tue, 0351° / 33°

51 °

Grantsdale, Tuesday, 3 November

Overcast. High 51°, low 33°.

Pressure30.12 inHg

Wind1.8 mph NE

Humidity55%

Visibility6.2 mi

Dew point28°

Wed, 0450° / 33°

50 °

Grantsdale, Wednesday, 4 November

Clear. High 50°, low 33°.

Pressure30.06 inHg

Wind1.2 mph NE

Humidity55%

Visibility6.2 mi

Dew point30°

Thu, 0546° / 27°

46 °

Grantsdale, Thursday, 5 November

Light rain. High 46°, low 27°.

Pressure30.09 inHg

Wind1 mph SW

Humidity67%

Visibility6.2 mi

Dew point35°

Fri, 0649° / 29°

0.04

49 °

Grantsdale, Friday, 6 November

Light rain. High 49°, low 29°.

Pressure30.12 inHg

Wind5.9 mph SW

Humidity53%

Visibility—

Dew point29°

Sat, 0752° / 33°

52 °

Grantsdale, Saturday, 7 November

Clear. High 52°, low 33°.

Pressure30.36 inHg

Wind3 mph SE

Humidity59%

Visibility—

Dew point30°

Sun, 0865° / 39°

65 °

Grantsdale, Sunday, 8 November

Overcast. High 65°, low 39°.

Pressure29.97 inHg

Wind6 mph S

Humidity41%

Visibility—

Dew point34°

Mon, 0966° / 42°

66 °

Grantsdale, Monday, 9 November

Mostly clear. High 66°, low 42°.

Pressure29.94 inHg

Wind5.8 mph S

Humidity41%

Visibility—

Dew point33°

Tue, 1060° / 42°

60 °

Grantsdale, Tuesday, 10 November

Overcast. High 60°, low 42°.

Pressure30.00 inHg

Wind3.1 mph SW

Humidity45%

Visibility—

Dew point33°

Wed, 1163° / 45°

63 °

Grantsdale, Wednesday, 11 November

Overcast. High 63°, low 45°.

Pressure30.06 inHg

Wind3.3 mph SE

Humidity44%

Visibility—

Dew point33°

Thu, 1262° / 44°

0.04

62 °

Grantsdale, Thursday, 12 November

Light rain. High 62°, low 44°.

Pressure29.94 inHg

Wind4.9 mph S

Humidity41%

Visibility—

Dew point31°

Fri, 1349° / 40°

0.26

49 °

Grantsdale, Friday, 13 November

Snow. High 49°, low 40°.

Pressure30.09 inHg

Wind11.5 mph W

Humidity56%

Visibility—

Dew point31°

Sat, 1451° / 33°

51 °

Grantsdale, Saturday, 14 November

Clear. High 51°, low 33°.

Pressure30.42 inHg

Wind5 mph S

Humidity58%

Visibility—

Dew point30°

Sun, 1559° / 35°

59 °

Grantsdale, Sunday, 15 November

Overcast. High 59°, low 35°.

Pressure30.06 inHg

Wind5.2 mph S

Humidity38%

Visibility—

Dew point25°

Mon, 1649° / 32°

49 °

Grantsdale, Monday, 16 November

Light rain. High 49°, low 32°.

Pressure29.94 inHg

Wind5.1 mph W

Humidity59%

Visibility—

Dew point34°

Tue, 1752° / 30°

52 °

Grantsdale, Tuesday, 17 November

Clear. High 52°, low 30°.

Pressure30.21 inHg

Wind4.7 mph S

Humidity40%

Visibility—

Dew point20°

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

Wed, 1840° / 24°

0.08

40 °

Grantsdale, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high40°

Average low24°

Average precipitation0.08 in

Chance of precipitation47%

Record high59° (2008)

Record low-6° (2022)

Thu, 1940° / 22°

0.08

40 °

Grantsdale, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high40°

Average low22°

Average precipitation0.08 in

Chance of precipitation37%

Record high51° (1987)

Record low-5° (1975)

Fri, 2040° / 23°

0.07

40 °

Grantsdale, Friday, 20 November

Climate normal for this date — 60-year average.

Average high40°

Average low23°

Average precipitation0.07 in

Chance of precipitation43%

Record high54° (1966)

Record low-6° (1975)

Sat, 2139° / 21°

0.06

39 °

Grantsdale, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high39°

Average low21°

Average precipitation0.06 in

Chance of precipitation33%

Record high55° (2018)

Record low-8° (1977)

Sun, 2238° / 20°

0.08

38 °

Grantsdale, Sunday, 22 November

Climate normal for this date — 60-year average.

Average high38°

Average low20°

Average precipitation0.08 in

Chance of precipitation42%

Record high57° (2021)

Record low-12° (2007)

Mon, 2337° / 19°

0.06

37 °

Grantsdale, Monday, 23 November

Climate normal for this date — 60-year average.

Average high37°

Average low19°

Average precipitation0.06 in

Chance of precipitation38%

Record high61° (2017)

Record low-17° (1985)

Tue, 2437° / 21°

0.11

37 °

Grantsdale, Tuesday, 24 November

Climate normal for this date — 60-year average.

Average high37°

Average low21°

Average precipitation0.11 in

Chance of precipitation53%

Record high54° (1976)

Record low-13° (2010)

Wed, 2536° / 20°

0.14

36 °

Grantsdale, Wednesday, 25 November

Climate normal for this date — 60-year average.

Average high36°

Average low20°

Average precipitation0.14 in

Chance of precipitation53%

Record high51° (2017)

Record low-17° (1993)

Thu, 2635° / 19°

0.07

35 °

Grantsdale, Thursday, 26 November

Climate normal for this date — 60-year average.

Average high35°

Average low19°

Average precipitation0.07 in

Chance of precipitation35%

Record high55° (2017)

Record low-9° (1993)

Fri, 2735° / 19°

0.06

35 °

Grantsdale, Friday, 27 November

Climate normal for this date — 60-year average.

Average high35°

Average low19°

Average precipitation0.06 in

Chance of precipitation42%

Record high54° (2021)

Record low-7° (2015)

Sat, 2836° / 20°

0.08

36 °

Grantsdale, Saturday, 28 November

Climate normal for this date — 60-year average.

Average high36°

Average low20°

Average precipitation0.08 in

Chance of precipitation38%

Record high61° (2021)

Record low-7° (1979)

Sun, 2935° / 19°

0.07

35 °

Grantsdale, Sunday, 29 November

Climate normal for this date — 60-year average.

Average high35°

Average low19°

Average precipitation0.07 in

Chance of precipitation38%

Record high48° (2021)

Record low-7° (1979)

Mon, 3035° / 18°

0.06

35 °

Grantsdale, Monday, 30 November

Climate normal for this date — 60-year average.

Average high35°

Average low18°

Average precipitation0.06 in

Chance of precipitation35%

Record high50° (2021)

Record low-11° (1985)

Tue, 0135° / 19°

0.09

35 °

Grantsdale, Tuesday, 1 December

Climate normal for this date — 60-year average.

Average high35°

Average low19°

Average precipitation0.09 in

Chance of precipitation42%

Record high62° (2021)

Record low-6° (1985)

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 Grantsdale, 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 Grantsdale, 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.