As of 07:36 MDT

Weather in Old Agency, MT

56°

Old Agency, Sunday, 9 August, 07:36

Clear. Feels like 54°. High 92°, low 55°.

Pressure30.00 inHg

Wind3.2 mph S

Humidity56%

Visibility6.2 mi

Dew point40°

See detailed hourly forecast

Monthly outlook for Old Agency, MT: average high 95.1°, average low 60.4°. That is 7.2° above the climate normal for August. Precipitation is expected on 0 days (about 0.0 inches), against a normal of 4 days and 1.0 inches. The warmest day looks like 23 August (104.3°), the coolest 10 August (52.7°).

95.1°/60.4°

Average high / low

+7.2°

Above normal

0 / 4

Wet days / normal

0.0 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
9 August – 18 August	91.4°	83°	+4.6°
19 August – 28 August	101.3°	80.2°	+11.7°
29 August – 7 September	at normal	77.6°	—

August records over 66 years

102.2°24 August 1969All-time high

39.9°23 August 1992All-time low

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

Mon, 1090° / 53°

90 °

Old Agency, Monday, 10 August

Clear. High 90°, low 53°.

Pressure29.85 inHg

Wind4.9 mph N

Humidity15%

Visibility6.2 mi

Dew point31°

Tue, 1194° / 58°

94 °

Old Agency, Tuesday, 11 August

Clear. High 94°, low 58°.

Pressure29.94 inHg

Wind4.3 mph N

Humidity17%

Visibility6.2 mi

Dew point33°

Wed, 1291° / 60°

91 °

Old Agency, Wednesday, 12 August

Overcast. High 91°, low 60°.

Pressure29.85 inHg

Wind7 mph N

Humidity22%

Visibility6.2 mi

Dew point36°

Thu, 1380° / 56°

0.03

80 °

Old Agency, Thursday, 13 August

Light rain. High 80°, low 56°.

Pressure29.91 inHg

Wind10.4 mph N

Humidity63%

Visibility—

Dew point54°

Fri, 1487° / 54°

87 °

Old Agency, Friday, 14 August

Clear. High 87°, low 54°.

Pressure29.94 inHg

Wind9.5 mph N

Humidity46%

Visibility—

Dew point50°

Sat, 1593° / 58°

93 °

Old Agency, Saturday, 15 August

Partly cloudy. High 93°, low 58°.

Pressure30.00 inHg

Wind10.4 mph N

Humidity29%

Visibility—

Dew point45°

Sun, 16100° / 61°

100 °

Old Agency, Sunday, 16 August

Partly cloudy. High 100°, low 61°.

Pressure29.97 inHg

Wind9.8 mph N

Humidity22%

Visibility—

Dew point42°

Mon, 1793° / 69°

93 °

Old Agency, Monday, 17 August

Overcast. High 93°, low 69°.

Pressure29.91 inHg

Wind20.5 mph W

Humidity17%

Visibility—

Dew point38°

Tue, 1893° / 61°

93 °

Old Agency, Tuesday, 18 August

Clear. High 93°, low 61°.

Pressure30.00 inHg

Wind14.2 mph W

Humidity15%

Visibility—

Dew point31°

Wed, 1997° / 61°

97 °

Old Agency, Wednesday, 19 August

Clear. High 97°, low 61°.

Pressure30.00 inHg

Wind15.8 mph W

Humidity13%

Visibility—

Dew point29°

Thu, 20101° / 64°

101 °

Old Agency, Thursday, 20 August

Clear. High 101°, low 64°.

Pressure29.88 inHg

Wind18.2 mph W

Humidity12%

Visibility—

Dew point31°

Fri, 2199° / 64°

99 °

Old Agency, Friday, 21 August

Partly cloudy. High 99°, low 64°.

Pressure29.88 inHg

Wind11.6 mph W

Humidity12%

Visibility—

Dew point29°

Sat, 22103° / 62°

103 °

Old Agency, Saturday, 22 August

Partly cloudy. High 103°, low 62°.

Pressure29.94 inHg

Wind10.9 mph W

Humidity15%

Visibility—

Dew point33°

Sun, 23104° / 65°

104 °

Old Agency, Sunday, 23 August

Clear. High 104°, low 65°.

Pressure30.00 inHg

Wind12.5 mph W

Humidity13%

Visibility—

Dew point33°

Mon, 24104° / 66°

104 °

Old Agency, Monday, 24 August

Mostly clear. High 104°, low 66°.

Pressure29.97 inHg

Wind9.8 mph NE

Humidity13%

Visibility—

Dew point33°

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

Tue, 2580° / 55°

0.06

80 °

Old Agency, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high80°

Average low55°

Average precipitation0.06 in

Chance of precipitation17%

Record high97° (1981)

Record low41° (1992)

Wed, 2680° / 56°

0.03

80 °

Old Agency, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high80°

Average low56°

Average precipitation0.03 in

Chance of precipitation18%

Record high96° (1981)

Record low42° (1989)

Thu, 2780° / 57°

0.06

80 °

Old Agency, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high80°

Average low57°

Average precipitation0.06 in

Chance of precipitation25%

Record high93° (1996)

Record low42° (1960)

Fri, 2880° / 56°

0.04

80 °

Old Agency, Friday, 28 August

Climate normal for this date — 60-year average.

Average high80°

Average low56°

Average precipitation0.04 in

Chance of precipitation20%

Record high94° (1986)

Record low41° (1960)

Sat, 2980° / 55°

0.03

80 °

Old Agency, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high80°

Average low55°

Average precipitation0.03 in

Chance of precipitation12%

Record high94° (1998)

Record low43° (1965)

Sun, 3079° / 55°

0.08

79 °

Old Agency, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high79°

Average low55°

Average precipitation0.08 in

Chance of precipitation25%

Record high94° (2017)

Record low41° (1993)

Mon, 3177° / 55°

0.11

77 °

Old Agency, Monday, 31 August

Climate normal for this date — 60-year average.

Average high77°

Average low55°

Average precipitation0.11 in

Chance of precipitation32%

Record high94° (1991)

Record low40° (1977)

Tue, 0178° / 54°

0.05

78 °

Old Agency, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high78°

Average low54°

Average precipitation0.05 in

Chance of precipitation23%

Record high96° (1967)

Record low42° (2006)

Wed, 0278° / 54°

0.06

78 °

Old Agency, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high78°

Average low54°

Average precipitation0.06 in

Chance of precipitation20%

Record high93° (1988)

Record low38° (2008)

Thu, 0378° / 54°

0.04

78 °

Old Agency, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high78°

Average low54°

Average precipitation0.04 in

Chance of precipitation18%

Record high99° (2022)

Record low41° (1961)

Fri, 0478° / 54°

0.04

78 °

Old Agency, Friday, 4 September

Climate normal for this date — 60-year average.

Average high78°

Average low54°

Average precipitation0.04 in

Chance of precipitation22%

Record high94° (1998)

Record low40° (1965)

Sat, 0577° / 54°

0.07

77 °

Old Agency, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high77°

Average low54°

Average precipitation0.07 in

Chance of precipitation28%

Record high96° (1967)

Record low38° (1965)

Sun, 0676° / 53°

0.07

76 °

Old Agency, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high76°

Average low53°

Average precipitation0.07 in

Chance of precipitation32%

Record high92° (1998)

Record low40° (2010)

Mon, 0776° / 53°

0.06

76 °

Old Agency, Monday, 7 September

Climate normal for this date — 60-year average.

Average high76°

Average low53°

Average precipitation0.06 in

Chance of precipitation22%

Record high92° (2022)

Record low39° (1986)

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 Old Agency, 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 Old Agency, 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.