As of 19:02 MDT

Weather in Shelby, MT

33°

Shelby, Friday, 23 October, 19:02

Overcast. Feels like 23°. High 48°, low 29°.

Pressure30.18 inHg

Wind15 mph N

Humidity86%

Visibility6.2 mi

Dew point30°

See detailed hourly forecast

Monthly outlook for Shelby, MT: average high 51.6°, average low 35.4°. That is 1.8° above the climate normal for October. Precipitation is expected on 1 day (about 0.3 inches), against a normal of 3 days and 0.4 inches. The warmest day looks like 4 November (67.1°), the coolest 24 October (24°).

51.6°/35.4°

Average high / low

+1.8°

Above normal

1 / 3

Wet days / normal

0.3 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
23 October – 1 November	46.1°	50°	-2.1°
2 November – 11 November	60.6°	44°	+9.2°
12 November – 21 November	at normal	40.4°	—

October records over 66 years

86.2°1 October 1992All-time high

-11.9°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Dunkirk (9 mi).

Sat, 2443° / 24°

43 °

Shelby, Saturday, 24 October

Partly cloudy. High 43°, low 24°.

Pressure30.33 inHg

Wind6.9 mph SE

Humidity69%

Visibility6.2 mi

Dew point22°

Sun, 2540° / 26°

40 °

Shelby, Sunday, 25 October

Overcast. High 40°, low 26°.

Pressure30.53 inHg

Wind8.3 mph E

Humidity80%

Visibility6.2 mi

Dew point21°

Mon, 2644° / 28°

44 °

Shelby, Monday, 26 October

Overcast. High 44°, low 28°.

Pressure30.24 inHg

Wind9.3 mph SE

Humidity78%

Visibility6.2 mi

Dew point26°

Tue, 2752° / 33°

52 °

Shelby, Tuesday, 27 October

Overcast. High 52°, low 33°.

Pressure29.94 inHg

Wind7.1 mph SW

Humidity59%

Visibility3.0 mi

Dew point35°

Wed, 2848° / 33°

48 °

Shelby, Wednesday, 28 October

Overcast. High 48°, low 33°.

Pressure29.97 inHg

Wind7.5 mph SW

Humidity66%

Visibility—

Dew point31°

Thu, 2941° / 32°

41 °

Shelby, Thursday, 29 October

Overcast. High 41°, low 32°.

Pressure30.03 inHg

Wind13 mph SE

Humidity77%

Visibility—

Dew point30°

Fri, 3048° / 36°

48 °

Shelby, Friday, 30 October

Overcast. High 48°, low 36°.

Pressure29.83 inHg

Wind18.1 mph SW

Humidity49%

Visibility—

Dew point26°

Sat, 3145° / 33°

45 °

Shelby, Saturday, 31 October

Partly cloudy. High 45°, low 33°.

Pressure29.97 inHg

Wind12.8 mph SW

Humidity48%

Visibility—

Dew point22°

Sun, 0152° / 36°

52 °

Shelby, Sunday, 1 November

Partly cloudy. High 52°, low 36°.

Pressure29.91 inHg

Wind17.3 mph W

Humidity36%

Visibility—

Dew point22°

Mon, 0249° / 33°

49 °

Shelby, Monday, 2 November

Clear. High 49°, low 33°.

Pressure30.47 inHg

Wind9.8 mph W

Humidity41%

Visibility—

Dew point20°

Tue, 0362° / 34°

62 °

Shelby, Tuesday, 3 November

Overcast. High 62°, low 34°.

Pressure30.27 inHg

Wind16.6 mph W

Humidity34%

Visibility—

Dew point21°

Wed, 0467° / 49°

67 °

Shelby, Wednesday, 4 November

Mostly clear. High 67°, low 49°.

Pressure30.00 inHg

Wind18.6 mph W

Humidity20%

Visibility—

Dew point20°

Thu, 0566° / 50°

66 °

Shelby, Thursday, 5 November

Clear. High 66°, low 50°.

Pressure29.85 inHg

Wind8.5 mph SW

Humidity23%

Visibility—

Dew point22°

Fri, 0664° / 45°

64 °

Shelby, Friday, 6 November

Overcast. High 64°, low 45°.

Pressure29.74 inHg

Wind23.8 mph W

Humidity24%

Visibility—

Dew point21°

Sat, 0756° / 47°

56 °

Shelby, Saturday, 7 November

Mostly clear. High 56°, low 47°.

Pressure29.83 inHg

Wind21.6 mph SW

Humidity45%

Visibility—

Dew point34°

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

Sun, 0843° / 26°

0.04

43 °

Shelby, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high43°

Average low26°

Average precipitation0.04 in

Chance of precipitation22%

Record high61° (2004)

Record low-3° (2022)

Mon, 0941° / 24°

0.04

41 °

Shelby, Monday, 9 November

Climate normal for this date — 60-year average.

Average high41°

Average low24°

Average precipitation0.04 in

Chance of precipitation25%

Record high65° (2016)

Record low-9° (2022)

Tue, 1040° / 24°

0.03

40 °

Shelby, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high40°

Average low24°

Average precipitation0.03 in

Chance of precipitation17%

Record high64° (2025)

Record low-1° (2022)

Wed, 1141° / 22°

0.02

41 °

Shelby, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high41°

Average low22°

Average precipitation0.02 in

Chance of precipitation23%

Record high64° (1990)

Record low-9° (1978)

Thu, 1241° / 24°

0.02

41 °

Shelby, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high41°

Average low24°

Average precipitation0.02 in

Chance of precipitation12%

Record high70° (1990)

Record low-11° (1985)

Fri, 1342° / 26°

0.01

42 °

Shelby, Friday, 13 November

Climate normal for this date — 60-year average.

Average high42°

Average low26°

Average precipitation0.01 in

Chance of precipitation8%

Record high66° (2025)

Record low-10° (2014)

Sat, 1443° / 25°

0.02

43 °

Shelby, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high43°

Average low25°

Average precipitation0.02 in

Chance of precipitation15%

Record high65° (1999)

Record low-16° (2014)

Sun, 1543° / 25°

0.01

43 °

Shelby, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high43°

Average low25°

Average precipitation0.01 in

Chance of precipitation7%

Record high64° (2021)

Record low-2° (2014)

Mon, 1642° / 26°

0.03

42 °

Shelby, Monday, 16 November

Climate normal for this date — 60-year average.

Average high42°

Average low26°

Average precipitation0.03 in

Chance of precipitation12%

Record high60° (2001)

Record low5° (1965)

Tue, 1740° / 24°

0.03

40 °

Shelby, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high40°

Average low24°

Average precipitation0.03 in

Chance of precipitation20%

Record high61° (1976)

Record low-1° (1966)

Wed, 1840° / 24°

0.03

40 °

Shelby, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high40°

Average low24°

Average precipitation0.03 in

Chance of precipitation20%

Record high61° (2008)

Record low-7° (2022)

Thu, 1938° / 23°

0.02

38 °

Shelby, Thursday, 19 November

Climate normal for this date — 60-year average.

Average high38°

Average low23°

Average precipitation0.02 in

Chance of precipitation15%

Record high59° (2003)

Record low-13° (1985)

Fri, 2038° / 22°

0.02

38 °

Shelby, Friday, 20 November

Climate normal for this date — 60-year average.

Average high38°

Average low22°

Average precipitation0.02 in

Chance of precipitation13%

Record high58° (2002)

Record low-20° (1985)

Sat, 2137° / 21°

0.02

37 °

Shelby, Saturday, 21 November

Climate normal for this date — 60-year average.

Average high37°

Average low21°

Average precipitation0.02 in

Chance of precipitation10%

Record high59° (1974)

Record low-22° (1996)

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 Shelby, 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 Shelby, 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.