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As of 19:11 MDT

Weather in Shelby, MT

78°Current weather

Shelby, Saturday, 8 August, 19:11

Overcast. Feels like 76°. High 81°, low 52°.

Pressure29.88 inHg
Wind5 mph N
Humidity29%
Visibility6.2 mi
Dew point44°
Sun, 0979° / 49°0Clear
79 °Clear

Shelby, Sunday, 9 August

Clear. High 79°, low 49°.

Pressure29.94 inHg
Wind13.4 mph N
Humidity46%
Visibility6.2 mi
Dew point50°
Mon, 1083° / 47°0Clear
83 °Clear

Shelby, Monday, 10 August

Clear. High 83°, low 47°.

Pressure29.88 inHg
Wind5.3 mph NE
Humidity39%
Visibility6.2 mi
Dew point47°
Tue, 1183° / 56°0Clear
83 °Clear

Shelby, Tuesday, 11 August

Clear. High 83°, low 56°.

Pressure29.97 inHg
Wind11.2 mph N
Humidity37%
Visibility6.2 mi
Dew point47°
Wed, 1282° / 60°0Overcast
82 °Overcast

Shelby, Wednesday, 12 August

Overcast. High 82°, low 60°.

Pressure29.88 inHg
Wind6.7 mph NE
Humidity39%
Visibility6.2 mi
Dew point47°
Thu, 1372° / 54°0.1Light rain
72 °Light rain

Shelby, Thursday, 13 August

Light rain. High 72°, low 54°.

Pressure29.88 inHg
Wind15.5 mph NW
Humidity57%
Visibility—
Dew point50°
Fri, 1468° / 52°0Overcast
68 °Overcast

Shelby, Friday, 14 August

Overcast. High 68°, low 52°.

Pressure30.12 inHg
Wind12.8 mph N
Humidity61%
Visibility—
Dew point47°
Sat, 1577° / 53°0Clear
77 °Clear

Shelby, Saturday, 15 August

Clear. High 77°, low 53°.

Pressure30.15 inHg
Wind11.5 mph E
Humidity43%
Visibility—
Dew point44°
Sun, 1691° / 59°0Overcast
91 °Overcast

Shelby, Sunday, 16 August

Overcast. High 91°, low 59°.

Pressure29.91 inHg
Wind14 mph NW
Humidity21%
Visibility—
Dew point37°
Mon, 1785° / 59°0Mostly clear
85 °Mostly clear

Shelby, Monday, 17 August

Mostly clear. High 85°, low 59°.

Pressure29.97 inHg
Wind15 mph NE
Humidity37%
Visibility—
Dew point45°
Tue, 1882° / 64°0Overcast
82 °Overcast

Shelby, Tuesday, 18 August

Overcast. High 82°, low 64°.

Pressure30.00 inHg
Wind19.3 mph S
Humidity35%
Visibility—
Dew point45°
Wed, 1978° / 64°0Overcast
78 °Overcast

Shelby, Wednesday, 19 August

Overcast. High 78°, low 64°.

Pressure29.88 inHg
Wind14.1 mph W
Humidity35%
Visibility—
Dew point45°
Thu, 2087° / 58°0Partly cloudy
87 °Partly cloudy

Shelby, Thursday, 20 August

Partly cloudy. High 87°, low 58°.

Pressure29.80 inHg
Wind16.6 mph W
Humidity20%
Visibility—
Dew point34°
Fri, 2180° / 59°0Mostly clear
80 °Mostly clear

Shelby, Friday, 21 August

Mostly clear. High 80°, low 59°.

Pressure29.83 inHg
Wind17.1 mph SW
Humidity39%
Visibility—
Dew point45°
Sat, 2282° / 56°0Partly cloudy
82 °Partly cloudy

Shelby, Saturday, 22 August

Partly cloudy. High 82°, low 56°.

Pressure29.91 inHg
Wind16.1 mph N
Humidity41%
Visibility—
Dew point45°
Sun, 2389° / 62°0Overcast
89 °Overcast

Shelby, Sunday, 23 August

Overcast. High 89°, low 62°.

Pressure29.71 inHg
Wind25.2 mph W
Humidity18%
Visibility—
Dew point31°

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 Shelby, 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 Shelby, 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.