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As of 13:09 MDT

Weather in Marion, MT

84°Current weather

Marion, Saturday, 8 August, 13:09

Overcast. Feels like 81°. High 84°, low 48°.

Pressure29.91 inHg
Wind3 mph SW
Humidity21%
Visibility6.2 mi
Dew point39°
Sun, 0985° / 46°0Clear
85 °Clear

Marion, Sunday, 9 August

Clear. High 85°, low 46°.

Pressure29.88 inHg
Wind2.7 mph SE
Humidity18%
Visibility6.2 mi
Dew point35°
Mon, 1086° / 45°0Clear
86 °Clear

Marion, Monday, 10 August

Clear. High 86°, low 45°.

Pressure29.85 inHg
Wind8.2 mph W
Humidity16%
Visibility6.2 mi
Dew point31°
Tue, 1189° / 54°0Clear
89 °Clear

Marion, Tuesday, 11 August

Clear. High 89°, low 54°.

Pressure29.97 inHg
Wind2.7 mph S
Humidity20%
Visibility6.2 mi
Dew point36°
Wed, 1289° / 55°0Partly cloudy
89 °Partly cloudy

Marion, Wednesday, 12 August

Partly cloudy. High 89°, low 55°.

Pressure29.85 inHg
Wind1.4 mph S
Humidity20%
Visibility6.2 mi
Dew point38°
Thu, 1383° / 52°0Clear
83 °Clear

Marion, Thursday, 13 August

Clear. High 83°, low 52°.

Pressure29.83 inHg
Wind12.8 mph W
Humidity40%
Visibility—
Dew point47°
Fri, 1484° / 51°0Clear
84 °Clear

Marion, Friday, 14 August

Clear. High 84°, low 51°.

Pressure29.91 inHg
Wind6.7 mph W
Humidity19%
Visibility—
Dew point31°
Sat, 1582° / 53°0Overcast
82 °Overcast

Marion, Saturday, 15 August

Overcast. High 82°, low 53°.

Pressure29.97 inHg
Wind11.7 mph W
Humidity30%
Visibility—
Dew point40°
Sun, 1685° / 52°0Clear
85 °Clear

Marion, Sunday, 16 August

Clear. High 85°, low 52°.

Pressure30.00 inHg
Wind13.7 mph W
Humidity24%
Visibility—
Dew point36°
Mon, 1789° / 54°0Clear
89 °Clear

Marion, Monday, 17 August

Clear. High 89°, low 54°.

Pressure30.03 inHg
Wind12.1 mph W
Humidity21%
Visibility—
Dew point36°
Tue, 1873° / 54°0.01Light rain
73 °Light rain

Marion, Tuesday, 18 August

Light rain. High 73°, low 54°.

Pressure30.06 inHg
Wind9.8 mph S
Humidity39%
Visibility—
Dew point45°
Wed, 1987° / 48°0Partly cloudy
87 °Partly cloudy

Marion, Wednesday, 19 August

Partly cloudy. High 87°, low 48°.

Pressure30.06 inHg
Wind4 mph S
Humidity35%
Visibility—
Dew point43°
Thu, 2089° / 58°0Overcast
89 °Overcast

Marion, Thursday, 20 August

Overcast. High 89°, low 58°.

Pressure29.88 inHg
Wind12.7 mph W
Humidity22%
Visibility—
Dew point39°
Fri, 2191° / 59°0Clear
91 °Clear

Marion, Friday, 21 August

Clear. High 91°, low 59°.

Pressure29.94 inHg
Wind8.2 mph W
Humidity21%
Visibility—
Dew point38°
Sat, 2292° / 59°0Mostly clear
92 °Mostly clear

Marion, Saturday, 22 August

Mostly clear. High 92°, low 59°.

Pressure29.97 inHg
Wind5.1 mph W
Humidity20%
Visibility—
Dew point38°
Sun, 2394° / 59°0Overcast
94 °Overcast

Marion, Sunday, 23 August

Overcast. High 94°, low 59°.

Pressure30.00 inHg
Wind5.6 mph E
Humidity29%
Visibility—
Dew point46°

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 Marion, 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 Marion, 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.