As of 07:34 MDT

Weather in Fort Shaw, MT

56°

Fort Shaw, Sunday, 9 August, 07:34

Clear. Feels like 54°. High 83°, low 55°.

Pressure29.94 inHg

Wind6.6 mph NW

Humidity51%

Visibility6.2 mi

Dew point38°

See detailed hourly forecast

Monthly outlook for Fort Shaw, MT: average high 88.5°, average low 59.7°. That is 3.5° above the climate normal for August. Precipitation is expected on 1 day (about 0.1 inches), against a normal of 3 days and 0.8 inches. The warmest day looks like 23 August (101.4°), the coolest 10 August (51.4°).

88.5°/59.7°

Average high / low

+3.5°

Above normal

1 / 3

Wet days / normal

0.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 August – 18 August	83.2°	82.9°	+0.2°
19 August – 28 August	97.3°	80.9°	+9.2°
29 August – 7 September	at normal	78.2°	—

August records over 66 years

104.5°5 August 1961All-time high

32.2°25 August 1992All-time low

Climate normals and records are computed from the nearest reference point — Ulm (15 mi).

Mon, 1085° / 51°

85 °

Fort Shaw, Monday, 10 August

Clear. High 85°, low 51°.

Pressure29.83 inHg

Wind9.5 mph N

Humidity24%

Visibility6.2 mi

Dew point42°

Tue, 1187° / 55°

87 °

Fort Shaw, Tuesday, 11 August

Clear. High 87°, low 55°.

Pressure29.94 inHg

Wind4.3 mph E

Humidity36%

Visibility6.2 mi

Dew point46°

Wed, 1281° / 57°

0.01

81 °

Fort Shaw, Wednesday, 12 August

Light rain. High 81°, low 57°.

Pressure29.91 inHg

Wind9.7 mph N

Humidity41%

Visibility6.2 mi

Dew point48°

Thu, 1362° / 54°

0.14

62 °

Fort Shaw, Thursday, 13 August

Light rain. High 62°, low 54°.

Pressure29.97 inHg

Wind13.7 mph NW

Humidity84%

Visibility—

Dew point53°

Fri, 1473° / 55°

73 °

Fort Shaw, Friday, 14 August

Overcast. High 73°, low 55°.

Pressure30.06 inHg

Wind11.3 mph NE

Humidity71%

Visibility—

Dew point50°

Sat, 1586° / 53°

86 °

Fort Shaw, Saturday, 15 August

Light rain. High 86°, low 53°.

Pressure30.03 inHg

Wind15.8 mph E

Humidity41%

Visibility—

Dew point46°

Sun, 1691° / 60°

91 °

Fort Shaw, Sunday, 16 August

Mostly clear. High 91°, low 60°.

Pressure29.94 inHg

Wind20.9 mph NE

Humidity24%

Visibility—

Dew point42°

Mon, 1793° / 70°

93 °

Fort Shaw, Monday, 17 August

Overcast. High 93°, low 70°.

Pressure29.80 inHg

Wind25.9 mph NW

Humidity17%

Visibility—

Dew point38°

Tue, 1891° / 62°

91 °

Fort Shaw, Tuesday, 18 August

Mostly clear. High 91°, low 62°.

Pressure29.94 inHg

Wind11.7 mph NW

Humidity17%

Visibility—

Dew point33°

Wed, 1995° / 61°

95 °

Fort Shaw, Wednesday, 19 August

Clear. High 95°, low 61°.

Pressure29.94 inHg

Wind15.4 mph NW

Humidity15%

Visibility—

Dew point32°

Thu, 20100° / 62°

100 °

Fort Shaw, Thursday, 20 August

Overcast. High 100°, low 62°.

Pressure29.83 inHg

Wind20.4 mph W

Humidity10%

Visibility—

Dew point26°

Fri, 2191° / 65°

91 °

Fort Shaw, Friday, 21 August

Overcast. High 91°, low 65°.

Pressure29.83 inHg

Wind14.9 mph NE

Humidity12%

Visibility—

Dew point29°

Sat, 2299° / 62°

99 °

Fort Shaw, Saturday, 22 August

Clear. High 99°, low 62°.

Pressure29.88 inHg

Wind16.7 mph NW

Humidity17%

Visibility—

Dew point35°

Sun, 23101° / 66°

101 °

Fort Shaw, Sunday, 23 August

Clear. High 101°, low 66°.

Pressure29.94 inHg

Wind15.9 mph NW

Humidity9%

Visibility—

Dew point25°

Mon, 2497° / 67°

97 °

Fort Shaw, Monday, 24 August

Clear. High 97°, low 67°.

Pressure29.91 inHg

Wind34.3 mph N

Humidity9%

Visibility—

Dew point26°

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

Tue, 2580° / 54°

0.06

80 °

Fort Shaw, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high80°

Average low54°

Average precipitation0.06 in

Chance of precipitation15%

Record high95° (1970)

Record low32° (1992)

Wed, 2681° / 54°

0.02

81 °

Fort Shaw, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high81°

Average low54°

Average precipitation0.02 in

Chance of precipitation17%

Record high97° (2010)

Record low40° (1989)

Thu, 2781° / 55°

0.03

81 °

Fort Shaw, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high81°

Average low55°

Average precipitation0.03 in

Chance of precipitation20%

Record high94° (2012)

Record low45° (2004)

Fri, 2880° / 54°

0.04

80 °

Fort Shaw, Friday, 28 August

Climate normal for this date — 60-year average.

Average high80°

Average low54°

Average precipitation0.04 in

Chance of precipitation18%

Record high96° (2012)

Record low40° (2018)

Sat, 2981° / 54°

0.04

81 °

Fort Shaw, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high81°

Average low54°

Average precipitation0.04 in

Chance of precipitation10%

Record high95° (2005)

Record low42° (1965)

Sun, 3080° / 54°

0.04

80 °

Fort Shaw, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high80°

Average low54°

Average precipitation0.04 in

Chance of precipitation17%

Record high95° (2007)

Record low38° (1993)

Mon, 3178° / 53°

0.09

78 °

Fort Shaw, Monday, 31 August

Climate normal for this date — 60-year average.

Average high78°

Average low53°

Average precipitation0.09 in

Chance of precipitation20%

Record high97° (1991)

Record low39° (1965)

Tue, 0178° / 53°

0.05

78 °

Fort Shaw, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high78°

Average low53°

Average precipitation0.05 in

Chance of precipitation18%

Record high95° (1967)

Record low39° (2008)

Wed, 0279° / 52°

0.04

79 °

Fort Shaw, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high79°

Average low52°

Average precipitation0.04 in

Chance of precipitation13%

Record high94° (2017)

Record low37° (1974)

Thu, 0379° / 52°

0.01

79 °

Fort Shaw, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high79°

Average low52°

Average precipitation0.01 in

Chance of precipitation10%

Record high101° (2022)

Record low39° (1962)

Fri, 0477° / 53°

0.04

77 °

Fort Shaw, Friday, 4 September

Climate normal for this date — 60-year average.

Average high77°

Average low53°

Average precipitation0.04 in

Chance of precipitation18%

Record high94° (1998)

Record low36° (1962)

Sat, 0577° / 52°

0.07

77 °

Fort Shaw, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high77°

Average low52°

Average precipitation0.07 in

Chance of precipitation27%

Record high96° (1967)

Record low40° (1965)

Sun, 0676° / 52°

0.04

76 °

Fort Shaw, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high76°

Average low52°

Average precipitation0.04 in

Chance of precipitation22%

Record high93° (1980)

Record low38° (1992)

Mon, 0776° / 51°

0.05

76 °

Fort Shaw, Monday, 7 September

Climate normal for this date — 60-year average.

Average high76°

Average low51°

Average precipitation0.05 in

Chance of precipitation23%

Record high98° (2022)

Record low33° (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 Fort Shaw, 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 Fort Shaw, 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.