As of 00:30 MDT

Weather in Big Sandy, MT

59°Current weather

Big Sandy, Thursday, 22 October, 00:30

Clear. Feels like 58°. High 72°, low 41°.

Pressure29.91 inHg
Wind6.2 mph SW
Humidity56%
Visibility6.2 mi
Dew point44°

Monthly outlook for Big Sandy, MT: average high 53.4°, average low 36°. That is 1.5° above the climate normal for October. Precipitation is expected on 2 days (about 0.8 inches), against a normal of 3 days and 0.5 inches. The warmest day looks like 22 October (71.8°), the coolest 27 October (24.9°).

53.4°/36°
Average high / low
+1.5°
Above normal
2 / 3
Wet days / normal
0.8 in
Precipitation this month

Ten-day blocks vs climate normal

PeriodForecast highNormalDifference
22 October – 31 October51.3°52.6°-0.7°
1 November – 10 November56.9°46.3°+5.9°
11 November – 20 Novemberat normal42.6°—

October records over 66 years

87.3°1 October 2011All-time high
-12.6°30 October 1991All-time low
Fri, 2351° / 35°0.7Snow
51 °Snow

Big Sandy, Friday, 23 October

Snow. High 51°, low 35°.

Pressure29.85 inHg
Wind12.9 mph N
Humidity91%
Visibility2.3 mi
Dew point41°
Sat, 2446° / 27°0Clear
46 °Clear

Big Sandy, Saturday, 24 October

Clear. High 46°, low 27°.

Pressure30.45 inHg
Wind5.2 mph S
Humidity68%
Visibility6.2 mi
Dew point25°
Sun, 2545° / 27°0Clear
45 °Clear

Big Sandy, Sunday, 25 October

Clear. High 45°, low 27°.

Pressure30.47 inHg
Wind3.3 mph N
Humidity68%
Visibility6.2 mi
Dew point25°
Mon, 2642° / 28°0Overcast
42 °Overcast

Big Sandy, Monday, 26 October

Overcast. High 42°, low 28°.

Pressure30.53 inHg
Wind4.2 mph SE
Humidity79%
Visibility—
Dew point30°
Tue, 2740° / 25°0Overcast
40 °Overcast

Big Sandy, Tuesday, 27 October

Overcast. High 40°, low 25°.

Pressure30.47 inHg
Wind5.7 mph SE
Humidity76%
Visibility—
Dew point28°
Wed, 2850° / 32°0Mostly clear
50 °Mostly clear

Big Sandy, Wednesday, 28 October

Mostly clear. High 50°, low 32°.

Pressure30.21 inHg
Wind10.4 mph SE
Humidity35%
Visibility—
Dew point19°
Thu, 2963° / 41°0Overcast
63 °Overcast

Big Sandy, Thursday, 29 October

Overcast. High 63°, low 41°.

Pressure29.74 inHg
Wind15.2 mph SW
Humidity35%
Visibility—
Dew point26°
Fri, 3054° / 44°0Partly cloudy
54 °Partly cloudy

Big Sandy, Friday, 30 October

Partly cloudy. High 54°, low 44°.

Pressure29.53 inHg
Wind18.9 mph W
Humidity44%
Visibility—
Dew point31°
Sat, 3151° / 36°0Partly cloudy
51 °Partly cloudy

Big Sandy, Saturday, 31 October

Partly cloudy. High 51°, low 36°.

Pressure29.71 inHg
Wind15 mph W
Humidity60%
Visibility—
Dew point30°
Sun, 0144° / 36°0Overcast
44 °Overcast

Big Sandy, Sunday, 1 November

Overcast. High 44°, low 36°.

Pressure30.21 inHg
Wind7.9 mph N
Humidity43%
Visibility—
Dew point21°
Mon, 0246° / 34°0Overcast
46 °Overcast

Big Sandy, Monday, 2 November

Overcast. High 46°, low 34°.

Pressure30.30 inHg
Wind5.5 mph S
Humidity57%
Visibility—
Dew point27°
Tue, 0363° / 37°0Mostly clear
63 °Mostly clear

Big Sandy, Tuesday, 3 November

Mostly clear. High 63°, low 37°.

Pressure29.91 inHg
Wind25.6 mph W
Humidity32%
Visibility—
Dew point21°
Wed, 0458° / 42°0.02Light rain
58 °Light rain

Big Sandy, Wednesday, 4 November

Light rain. High 58°, low 42°.

Pressure29.74 inHg
Wind27.5 mph W
Humidity52%
Visibility—
Dew point37°
Thu, 0563° / 40°0.08Light rain
63 °Light rain

Big Sandy, Thursday, 5 November

Light rain. High 63°, low 40°.

Pressure29.62 inHg
Wind27.8 mph W
Humidity67%
Visibility—
Dew point38°
Fri, 0667° / 50°0Clear
67 °Clear

Big Sandy, Friday, 6 November

Clear. High 67°, low 50°.

Pressure29.68 inHg
Wind16.5 mph SW
Humidity46%
Visibility—
Dew point43°
From day 17 onward the outlook is built from 60-year climate statistics
Sat, 0746° / 30°0.02Climate normal
46 °Climate normal

Big Sandy, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high46°
Average low30°
Average precipitation0.02 in
Chance of precipitation23%
Record high72° (2010)
Record low-1° (1973)
Sun, 0845° / 29°0.05Climate normal
45 °Climate normal

Big Sandy, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high45°
Average low29°
Average precipitation0.05 in
Chance of precipitation23%
Record high64° (1999)
Record low2° (1973)
Mon, 0943° / 27°0.04Climate normal
43 °Climate normal

Big Sandy, Monday, 9 November

Climate normal for this date — 60-year average.

Average high43°
Average low27°
Average precipitation0.04 in
Chance of precipitation20%
Record high65° (2001)
Record low2° (2022)
Tue, 1042° / 27°0.04Climate normal
42 °Climate normal

Big Sandy, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high42°
Average low27°
Average precipitation0.04 in
Chance of precipitation23%
Record high66° (2025)
Record low3° (2022)
Wed, 1142° / 25°0.03Climate normal
42 °Climate normal

Big Sandy, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high42°
Average low25°
Average precipitation0.03 in
Chance of precipitation23%
Record high66° (1990)
Record low-8° (2012)
Thu, 1244° / 27°0.03Climate normal
44 °Climate normal

Big Sandy, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high44°
Average low27°
Average precipitation0.03 in
Chance of precipitation13%
Record high73° (1999)
Record low-2° (1986)
Fri, 1344° / 28°0.02Climate normal
44 °Climate normal

Big Sandy, Friday, 13 November

Climate normal for this date — 60-year average.

Average high44°
Average low28°
Average precipitation0.02 in
Chance of precipitation17%
Record high70° (2025)
Record low1° (2014)
Sat, 1444° / 27°0.04Climate normal
44 °Climate normal

Big Sandy, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high44°
Average low27°
Average precipitation0.04 in
Chance of precipitation20%
Record high66° (1999)
Record low-3° (2014)
Sun, 1544° / 27°0.01Climate normal
44 °Climate normal

Big Sandy, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high44°
Average low27°
Average precipitation0.01 in
Chance of precipitation7%
Record high65° (2021)
Record low-7° (2014)
Mon, 1644° / 28°0.03Climate normal
44 °Climate normal

Big Sandy, Monday, 16 November

Climate normal for this date — 60-year average.

Average high44°
Average low28°
Average precipitation0.03 in
Chance of precipitation17%
Record high62° (2001)
Record low5° (1965)
Tue, 1741° / 26°0.03Climate normal
41 °Climate normal

Big Sandy, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high41°
Average low26°
Average precipitation0.03 in
Chance of precipitation18%
Record high63° (2009)
Record low0° (2022)
Wed, 1842° / 26°0.02Climate normal
42 °Climate normal

Big Sandy, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high42°
Average low26°
Average precipitation0.02 in
Chance of precipitation15%
Record high62° (2008)
Record low-3° (2022)
Thu, 1940° / 24°0.02Climate normal
40 °Climate normal

Big Sandy, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high40°
Average low24°
Average precipitation0.02 in
Chance of precipitation10%
Record high61° (2003)
Record low-4° (1985)
Fri, 2040° / 24°0.02Climate normal
40 °Climate normal

Big Sandy, Friday, 20 November

Climate normal for this date — 60-year average.

Average high40°
Average low24°
Average precipitation0.02 in
Chance of precipitation17%
Record high58° (2009)
Record low-13° (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 Big Sandy, 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 Big Sandy, 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.