As of 09:31 MDT

Weather in Shirley, MT

40°

Shirley, Tuesday, 20 October, 09:31

Overcast. Feels like 40°. High 69°, low 39°.

Pressure30.06 inHg

Wind2.7 mph SW

Humidity71%

Visibility6.2 mi

Dew point32°

See detailed hourly forecast

Monthly outlook for Shirley, MT: average high 58.3°, average low 38°. That is 2.4° above the climate normal for October. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 2 days and 0.4 inches. The warmest day looks like 22 October (71.1°), the coolest 27 October (25.1°).

58.3°/38°

Average high / low

+2.4°

Above normal

0 / 2

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
20 October – 29 October	57.1°	55.9°	+0.7°
30 October – 8 November	60.2°	49.7°	+5.9°
9 November – 18 November	at normal	44.5°	—

October records over 66 years

93.2°1 October 2011All-time high

-15.5°30 October 1991All-time low

Climate normals and records are computed from the nearest reference point — Kinsey (4 mi).

Wed, 2170° / 39°

70 °

Shirley, Wednesday, 21 October

Overcast. High 70°, low 39°.

Pressure30.15 inHg

Wind5.8 mph E

Humidity58%

Visibility6.2 mi

Dew point45°

Thu, 2271° / 49°

71 °

Shirley, Thursday, 22 October

Clear. High 71°, low 49°.

Pressure29.91 inHg

Wind5.2 mph SW

Humidity56%

Visibility6.2 mi

Dew point48°

Fri, 2365° / 47°

0.01

65 °

Shirley, Friday, 23 October

Light rain. High 65°, low 47°.

Pressure29.65 inHg

Wind6.4 mph W

Humidity60%

Visibility6.2 mi

Dew point50°

Sat, 2450° / 37°

50 °

Shirley, Saturday, 24 October

Clear. High 50°, low 37°.

Pressure30.47 inHg

Wind13.8 mph NW

Humidity54%

Visibility—

Dew point29°

Sun, 2557° / 34°

57 °

Shirley, Sunday, 25 October

Clear. High 57°, low 34°.

Pressure30.36 inHg

Wind12.2 mph SE

Humidity46%

Visibility—

Dew point29°

Mon, 2642° / 31°

42 °

Shirley, Monday, 26 October

Clear. High 42°, low 31°.

Pressure30.56 inHg

Wind18.7 mph NW

Humidity50%

Visibility—

Dew point22°

Tue, 2749° / 25°

49 °

Shirley, Tuesday, 27 October

Partly cloudy. High 49°, low 25°.

Pressure30.47 inHg

Wind11.8 mph S

Humidity35%

Visibility—

Dew point14°

Wed, 2848° / 34°

48 °

Shirley, Wednesday, 28 October

Clear. High 48°, low 34°.

Pressure30.36 inHg

Wind13.1 mph NW

Humidity40%

Visibility—

Dew point20°

Thu, 2949° / 31°

49 °

Shirley, Thursday, 29 October

Clear. High 49°, low 31°.

Pressure30.36 inHg

Wind6.5 mph E

Humidity38%

Visibility—

Dew point19°

Fri, 3062° / 33°

62 °

Shirley, Friday, 30 October

Mostly clear. High 62°, low 33°.

Pressure30.03 inHg

Wind17.4 mph S

Humidity32%

Visibility—

Dew point22°

Sat, 3149° / 38°

49 °

Shirley, Saturday, 31 October

Mostly clear. High 49°, low 38°.

Pressure30.18 inHg

Wind10.9 mph NW

Humidity49%

Visibility—

Dew point27°

Sun, 0163° / 35°

63 °

Shirley, Sunday, 1 November

Mostly clear. High 63°, low 35°.

Pressure29.97 inHg

Wind8.8 mph S

Humidity33%

Visibility—

Dew point23°

Mon, 0265° / 46°

65 °

Shirley, Monday, 2 November

Overcast. High 65°, low 46°.

Pressure29.71 inHg

Wind13.6 mph W

Humidity45%

Visibility—

Dew point37°

Tue, 0363° / 47°

63 °

Shirley, Tuesday, 3 November

Mostly clear. High 63°, low 47°.

Pressure29.85 inHg

Wind18.7 mph NW

Humidity41%

Visibility—

Dew point35°

Wed, 0459° / 44°

59 °

Shirley, Wednesday, 4 November

Mostly clear. High 59°, low 44°.

Pressure30.00 inHg

Wind14 mph W

Humidity43%

Visibility—

Dew point33°

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

Thu, 0550° / 31°

0.03

50 °

Shirley, Thursday, 5 November

Climate normal for this date — 60-year average.

Average high50°

Average low31°

Average precipitation0.03 in

Chance of precipitation20%

Record high69° (2001)

Record low9° (2003)

Fri, 0649° / 30°

0.02

49 °

Shirley, Friday, 6 November

Climate normal for this date — 60-year average.

Average high49°

Average low30°

Average precipitation0.02 in

Chance of precipitation12%

Record high72° (2009)

Record low8° (1991)

Sat, 0748° / 30°

0.03

48 °

Shirley, Saturday, 7 November

Climate normal for this date — 60-year average.

Average high48°

Average low30°

Average precipitation0.03 in

Chance of precipitation13%

Record high70° (1978)

Record low-1° (1991)

Sun, 0847° / 29°

0.02

47 °

Shirley, Sunday, 8 November

Climate normal for this date — 60-year average.

Average high47°

Average low29°

Average precipitation0.02 in

Chance of precipitation20%

Record high73° (1999)

Record low-4° (2000)

Mon, 0945° / 28°

0.06

45 °

Shirley, Monday, 9 November

Climate normal for this date — 60-year average.

Average high45°

Average low28°

Average precipitation0.06 in

Chance of precipitation22%

Record high69° (2016)

Record low-2° (2000)

Tue, 1044° / 26°

0.05

44 °

Shirley, Tuesday, 10 November

Climate normal for this date — 60-year average.

Average high44°

Average low26°

Average precipitation0.05 in

Chance of precipitation17%

Record high69° (2007)

Record low-10° (1986)

Wed, 1143° / 25°

0.01

43 °

Shirley, Wednesday, 11 November

Climate normal for this date — 60-year average.

Average high43°

Average low25°

Average precipitation0.01 in

Chance of precipitation12%

Record high65° (2016)

Record low-4° (2022)

Thu, 1245° / 25°

0.02

45 °

Shirley, Thursday, 12 November

Climate normal for this date — 60-year average.

Average high45°

Average low25°

Average precipitation0.02 in

Chance of precipitation10%

Record high74° (1999)

Record low-6° (2000)

Fri, 1345° / 28°

0.03

45 °

Shirley, Friday, 13 November

Climate normal for this date — 60-year average.

Average high45°

Average low28°

Average precipitation0.03 in

Chance of precipitation18%

Record high65° (2025)

Record low-12° (1986)

Sat, 1445° / 28°

0.02

45 °

Shirley, Saturday, 14 November

Climate normal for this date — 60-year average.

Average high45°

Average low28°

Average precipitation0.02 in

Chance of precipitation8%

Record high68° (1999)

Record low-6° (2014)

Sun, 1545° / 26°

0.01

45 °

Shirley, Sunday, 15 November

Climate normal for this date — 60-year average.

Average high45°

Average low26°

Average precipitation0.01 in

Chance of precipitation3%

Record high66° (2001)

Record low-10° (2014)

Mon, 1645° / 27°

0.02

45 °

Shirley, Monday, 16 November

Climate normal for this date — 60-year average.

Average high45°

Average low27°

Average precipitation0.02 in

Chance of precipitation18%

Record high65° (2001)

Record low-3° (2000)

Tue, 1743° / 27°

0.02

43 °

Shirley, Tuesday, 17 November

Climate normal for this date — 60-year average.

Average high43°

Average low27°

Average precipitation0.02 in

Chance of precipitation8%

Record high65° (1976)

Record low0° (1996)

Wed, 1844° / 26°

0.03

44 °

Shirley, Wednesday, 18 November

Climate normal for this date — 60-year average.

Average high44°

Average low26°

Average precipitation0.03 in

Chance of precipitation18%

Record high65° (2008)

Record low-2° (2022)

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 Shirley, 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 Shirley, 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.