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As of 00:46 MDT

Weather in Grant, MT

44°Current weather

Grant, Friday, 9 October, 00:46

Overcast. Feels like 44°. High 76°, low 36°.

Pressure29.94 inHg
Wind2.2 mph W
Humidity47%
Visibility6.2 mi
Dew point26°

Monthly outlook for Grant, MT: average high 51.7°, average low 31.4°. That is 2.4° above the climate normal for October. Precipitation is expected on 4 days (about 1.7 inches), against a normal of 4 days and 0.7 inches. The warmest day looks like 9 October (76.1°), the coolest 16 October (19.9°).

51.7°/31.4°
Average high / low
+2.4°
Above normal
4 / 4
Wet days / normal
1.7 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
9 October – 18 October47.1°48.1°-0.6°
19 October – 28 October59.4°44.7°+8.2°
29 October – 7 Novemberat normal38.1°—

October records over 66 years

73.8°2 October 2010All-time high
-16.8°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Chinatown (11 mi).

Sat, 1062° / 38°0.11Rain
62 °Rain

Grant, Saturday, 10 October

Rain. High 62°, low 38°.

Pressure29.53 inHg
Wind6.3 mph SE
Humidity65%
Visibility6.2 mi
Dew point42°
Sun, 1139° / 30°0.8Snow
39 °Snow

Grant, Sunday, 11 October

Snow. High 39°, low 30°.

Pressure29.94 inHg
Wind4.7 mph NE
Humidity97%
Visibility3.2 mi
Dew point28°
Mon, 1230° / 24°0.16Snow
30 °Snow

Grant, Monday, 12 October

Snow. High 30°, low 24°.

Pressure30.12 inHg
Wind1.8 mph SE
Humidity96%
Visibility0.7 mi
Dew point26°
Tue, 1332° / 24°0Overcast
32 °Overcast

Grant, Tuesday, 13 October

Overcast. High 32°, low 24°.

Pressure30.24 inHg
Wind1.9 mph S
Humidity99%
Visibility—
Dew point28°
Wed, 1449° / 20°0Clear
49 °Clear

Grant, Wednesday, 14 October

Clear. High 49°, low 20°.

Pressure30.00 inHg
Wind4.2 mph W
Humidity71%
Visibility—
Dew point30°
Thu, 1541° / 25°0.61Snow
41 °Snow

Grant, Thursday, 15 October

Snow. High 41°, low 25°.

Pressure30.36 inHg
Wind14.9 mph NE
Humidity77%
Visibility—
Dew point28°
Fri, 1640° / 20°0Clear
40 °Clear

Grant, Friday, 16 October

Clear. High 40°, low 20°.

Pressure30.65 inHg
Wind5 mph SW
Humidity68%
Visibility—
Dew point21°
Sat, 1752° / 30°0Partly cloudy
52 °Partly cloudy

Grant, Saturday, 17 October

Partly cloudy. High 52°, low 30°.

Pressure30.30 inHg
Wind5.4 mph SW
Humidity53%
Visibility—
Dew point27°
Sun, 1850° / 33°0Overcast
50 °Overcast

Grant, Sunday, 18 October

Overcast. High 50°, low 33°.

Pressure30.30 inHg
Wind3.6 mph SE
Humidity51%
Visibility—
Dew point26°
Mon, 1960° / 35°0Clear
60 °Clear

Grant, Monday, 19 October

Clear. High 60°, low 35°.

Pressure30.12 inHg
Wind4.4 mph S
Humidity31%
Visibility—
Dew point21°
Tue, 2060° / 36°0Clear
60 °Clear

Grant, Tuesday, 20 October

Clear. High 60°, low 36°.

Pressure30.06 inHg
Wind5 mph S
Humidity31%
Visibility—
Dew point21°
Wed, 2156° / 36°0Clear
56 °Clear

Grant, Wednesday, 21 October

Clear. High 56°, low 36°.

Pressure30.15 inHg
Wind4.1 mph S
Humidity34%
Visibility—
Dew point22°
Thu, 2261° / 36°0Clear
61 °Clear

Grant, Thursday, 22 October

Clear. High 61°, low 36°.

Pressure30.24 inHg
Wind6.3 mph S
Humidity32%
Visibility—
Dew point22°
Fri, 2363° / 39°0Clear
63 °Clear

Grant, Friday, 23 October

Clear. High 63°, low 39°.

Pressure30.03 inHg
Wind11.7 mph W
Humidity23%
Visibility—
Dew point17°
Sat, 2456° / 40°0Partly cloudy
56 °Partly cloudy

Grant, Saturday, 24 October

Partly cloudy. High 56°, low 40°.

Pressure30.06 inHg
Wind6.1 mph SW
Humidity27%
Visibility—
Dew point21°
From day 17 onward the outlook is built from 60-year climate statistics
Sun, 2544° / 25°0.05Climate normal
44 °Climate normal

Grant, Sunday, 25 October

Climate normal for this date — 60-year average.

Average high44°
Average low25°
Average precipitation0.05 in
Chance of precipitation23%
Record high59° (2005)
Record low-8° (2020)
Mon, 2643° / 24°0.07Climate normal
43 °Climate normal

Grant, Monday, 26 October

Climate normal for this date — 60-year average.

Average high43°
Average low24°
Average precipitation0.07 in
Chance of precipitation35%
Record high59° (1999)
Record low-10° (2020)
Tue, 2742° / 23°0.04Climate normal
42 °Climate normal

Grant, Tuesday, 27 October

Climate normal for this date — 60-year average.

Average high42°
Average low23°
Average precipitation0.04 in
Chance of precipitation23%
Record high58° (2024)
Record low-10° (1996)
Wed, 2841° / 23°0.07Climate normal
41 °Climate normal

Grant, Wednesday, 28 October

Climate normal for this date — 60-year average.

Average high41°
Average low23°
Average precipitation0.07 in
Chance of precipitation32%
Record high58° (1962)
Record low-2° (2019)
Thu, 2939° / 22°0.05Climate normal
39 °Climate normal

Grant, Thursday, 29 October

Climate normal for this date — 60-year average.

Average high39°
Average low22°
Average precipitation0.05 in
Chance of precipitation32%
Record high60° (1962)
Record low-12° (2019)
Fri, 3038° / 21°0.04Climate normal
38 °Climate normal

Grant, Friday, 30 October

Climate normal for this date — 60-year average.

Average high38°
Average low21°
Average precipitation0.04 in
Chance of precipitation25%
Record high60° (1962)
Record low-17° (1991)
Sat, 3138° / 21°0.04Climate normal
38 °Climate normal

Grant, Saturday, 31 October

Climate normal for this date — 60-year average.

Average high38°
Average low21°
Average precipitation0.04 in
Chance of precipitation25%
Record high56° (1988)
Record low-7° (2002)
Sun, 0138° / 21°0.05Climate normal
38 °Climate normal

Grant, Sunday, 1 November

Climate normal for this date — 60-year average.

Average high38°
Average low21°
Average precipitation0.05 in
Chance of precipitation25%
Record high56° (2025)
Record low-13° (1989)
Mon, 0238° / 20°0.04Climate normal
38 °Climate normal

Grant, Monday, 2 November

Climate normal for this date — 60-year average.

Average high38°
Average low20°
Average precipitation0.04 in
Chance of precipitation35%
Record high58° (2020)
Record low-18° (1991)
Tue, 0339° / 21°0.03Climate normal
39 °Climate normal

Grant, Tuesday, 3 November

Climate normal for this date — 60-year average.

Average high39°
Average low21°
Average precipitation0.03 in
Chance of precipitation17%
Record high58° (2020)
Record low-14° (1991)
Wed, 0439° / 21°0.04Climate normal
39 °Climate normal

Grant, Wednesday, 4 November

Climate normal for this date — 60-year average.

Average high39°
Average low21°
Average precipitation0.04 in
Chance of precipitation33%
Record high53° (2001)
Record low-15° (1973)
Thu, 0538° / 21°0.05Climate normal
38 °Climate normal

Grant, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high38°
Average low21°
Average precipitation0.05 in
Chance of precipitation38%
Record high56° (2020)
Record low-16° (1961)
Fri, 0637° / 20°0.04Climate normal
37 °Climate normal

Grant, Friday, 6 November

Climate normal for this date — 60-year average.

Average high37°
Average low20°
Average precipitation0.04 in
Chance of precipitation28%
Record high55° (2012)
Record low-14° (1971)
Sat, 0737° / 19°0.04Climate normal
37 °Climate normal

Grant, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high37°
Average low19°
Average precipitation0.04 in
Chance of precipitation32%
Record high55° (1999)
Record low-10° (2000)

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 Grant, 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 Grant, 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.