As of 13:58 MDT

Weather in Iron, MT

88°

Iron, Saturday, 8 August, 13:58

Clear. Feels like 85°. High 88°, low 53°.

Pressure29.83 inHg

Wind14.1 mph W

Humidity18%

Visibility6.2 mi

Dew point38°

See detailed hourly forecast

Monthly outlook for Iron, MT: average high 89.6°, average low 56.8°. That is 5.1° above the climate normal for August. Precipitation is expected on 2 days (about 0.1 inches), against a normal of 5 days and 0.9 inches. The warmest day looks like 22 August (95.7°), the coolest 10 August (50.7°).

89.6°/56.8°

Average high / low

+5.1°

Above normal

2 / 5

Wet days / normal

0.1 in

Precipitation this month

Ten-day blocks vs climate normal

Period	Forecast high	Normal	Difference
8 August – 17 August	88.8°	81°	+4.3°
18 August – 27 August	90.9°	79°	+6.6°
28 August – 6 September	at normal	76.7°	—

August records over 66 years

99.5°5 August 1961All-time high

31.5°24 August 1992All-time low

Climate normals and records are computed from the nearest reference point — Helena (7 mi).

Sun, 0985° / 54°

85 °

Iron, Sunday, 9 August

Overcast. High 85°, low 54°.

Pressure29.85 inHg

Wind10.1 mph N

Humidity14%

Visibility6.2 mi

Dew point28°

Mon, 1092° / 51°

92 °

Iron, Monday, 10 August

Clear. High 92°, low 51°.

Pressure29.83 inHg

Wind3 mph NE

Humidity19%

Visibility6.2 mi

Dew point37°

Tue, 1191° / 56°

91 °

Iron, Tuesday, 11 August

Clear. High 91°, low 56°.

Pressure29.94 inHg

Wind5.4 mph NE

Humidity17%

Visibility6.2 mi

Dew point32°

Wed, 1291° / 56°

91 °

Iron, Wednesday, 12 August

Clear. High 91°, low 56°.

Pressure29.83 inHg

Wind6.9 mph NE

Humidity16%

Visibility6.2 mi

Dew point33°

Thu, 1385° / 53°

0.01

85 °

Iron, Thursday, 13 August

Light rain. High 85°, low 53°.

Pressure29.83 inHg

Wind12.6 mph NW

Humidity33%

Visibility—

Dew point44°

Fri, 1493° / 64°

93 °

Iron, Friday, 14 August

Partly cloudy. High 93°, low 64°.

Pressure29.83 inHg

Wind15.8 mph NW

Humidity23%

Visibility—

Dew point40°

Sat, 1581° / 57°

0.04

81 °

Iron, Saturday, 15 August

Light rain. High 81°, low 57°.

Pressure30.06 inHg

Wind11 mph W

Humidity65%

Visibility—

Dew point51°

Sun, 1686° / 54°

0.02

86 °

Iron, Sunday, 16 August

Light rain. High 86°, low 54°.

Pressure29.97 inHg

Wind7.5 mph SE

Humidity28%

Visibility—

Dew point43°

Mon, 1794° / 57°

94 °

Iron, Monday, 17 August

Overcast. High 94°, low 57°.

Pressure30.00 inHg

Wind7.9 mph NW

Humidity23%

Visibility—

Dew point40°

Tue, 1882° / 61°

0.05

82 °

Iron, Tuesday, 18 August

Light rain. High 82°, low 61°.

Pressure29.94 inHg

Wind21.5 mph W

Humidity22%

Visibility—

Dew point37°

Wed, 1988° / 51°

88 °

Iron, Wednesday, 19 August

Clear. High 88°, low 51°.

Pressure30.03 inHg

Wind5.5 mph W

Humidity32%

Visibility—

Dew point42°

Thu, 2093° / 58°

93 °

Iron, Thursday, 20 August

Overcast. High 93°, low 58°.

Pressure29.88 inHg

Wind12.1 mph W

Humidity20%

Visibility—

Dew point36°

Fri, 2195° / 61°

95 °

Iron, Friday, 21 August

Clear. High 95°, low 61°.

Pressure29.88 inHg

Wind11 mph NW

Humidity17%

Visibility—

Dew point35°

Sat, 2296° / 61°

96 °

Iron, Saturday, 22 August

Partly cloudy. High 96°, low 61°.

Pressure29.91 inHg

Wind12.7 mph NW

Humidity22%

Visibility—

Dew point41°

Sun, 2391° / 61°

91 °

Iron, Sunday, 23 August

Partly cloudy. High 91°, low 61°.

Pressure30.00 inHg

Wind13.6 mph N

Humidity30%

Visibility—

Dew point47°

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

Mon, 2478° / 53°

0.09

78 °

Iron, Monday, 24 August

Climate normal for this date — 60-year average.

Average high78°

Average low53°

Average precipitation0.09 in

Chance of precipitation35%

Record high98° (1969)

Record low31° (1992)

Tue, 2578° / 52°

0.03

78 °

Iron, Tuesday, 25 August

Climate normal for this date — 60-year average.

Average high78°

Average low52°

Average precipitation0.03 in

Chance of precipitation20%

Record high93° (2008)

Record low36° (1992)

Wed, 2679° / 53°

0.03

79 °

Iron, Wednesday, 26 August

Climate normal for this date — 60-year average.

Average high79°

Average low53°

Average precipitation0.03 in

Chance of precipitation18%

Record high93° (2010)

Record low37° (1992)

Thu, 2779° / 53°

0.04

79 °

Iron, Thursday, 27 August

Climate normal for this date — 60-year average.

Average high79°

Average low53°

Average precipitation0.04 in

Chance of precipitation23%

Record high91° (2011)

Record low39° (1976)

Fri, 2878° / 53°

0.07

78 °

Iron, Friday, 28 August

Climate normal for this date — 60-year average.

Average high78°

Average low53°

Average precipitation0.07 in

Chance of precipitation20%

Record high94° (2012)

Record low36° (1960)

Sat, 2979° / 53°

0.04

79 °

Iron, Saturday, 29 August

Climate normal for this date — 60-year average.

Average high79°

Average low53°

Average precipitation0.04 in

Chance of precipitation23%

Record high92° (2005)

Record low38° (1965)

Sun, 3077° / 52°

0.06

77 °

Iron, Sunday, 30 August

Climate normal for this date — 60-year average.

Average high77°

Average low52°

Average precipitation0.06 in

Chance of precipitation23%

Record high92° (2007)

Record low36° (1965)

Mon, 3176° / 51°

0.06

76 °

Iron, Monday, 31 August

Climate normal for this date — 60-year average.

Average high76°

Average low51°

Average precipitation0.06 in

Chance of precipitation18%

Record high93° (2016)

Record low38° (1965)

Tue, 0176° / 51°

0.06

76 °

Iron, Tuesday, 1 September

Climate normal for this date — 60-year average.

Average high76°

Average low51°

Average precipitation0.06 in

Chance of precipitation15%

Record high91° (1967)

Record low36° (2008)

Wed, 0277° / 50°

0.04

77 °

Iron, Wednesday, 2 September

Climate normal for this date — 60-year average.

Average high77°

Average low50°

Average precipitation0.04 in

Chance of precipitation22%

Record high93° (2017)

Record low33° (2008)

Thu, 0377° / 51°

0.02

77 °

Iron, Thursday, 3 September

Climate normal for this date — 60-year average.

Average high77°

Average low51°

Average precipitation0.02 in

Chance of precipitation13%

Record high97° (2022)

Record low37° (1962)

Fri, 0476° / 51°

0.05

76 °

Iron, Friday, 4 September

Climate normal for this date — 60-year average.

Average high76°

Average low51°

Average precipitation0.05 in

Chance of precipitation20%

Record high92° (1998)

Record low36° (1965)

Sat, 0576° / 51°

0.06

76 °

Iron, Saturday, 5 September

Climate normal for this date — 60-year average.

Average high76°

Average low51°

Average precipitation0.06 in

Chance of precipitation25%

Record high92° (2020)

Record low41° (2008)

Sun, 0675° / 50°

0.05

75 °

Iron, Sunday, 6 September

Climate normal for this date — 60-year average.

Average high75°

Average low50°

Average precipitation0.05 in

Chance of precipitation27%

Record high91° (1988)

Record low37° (1965)

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 Iron, 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 Iron, 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.