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As of 15:45 MDT

Weather in Decker, MT

98°Current weather

Decker, Saturday, 8 August, 15:45

Clear. Feels like 93°. High 98°, low 64°.

Pressure29.71 inHg
Wind15.4 mph NW
Humidity12%
Visibility6.2 mi
Dew point37°
Sun, 0993° / 64°0Overcast
93 °Overcast

Decker, Sunday, 9 August

Overcast. High 93°, low 64°.

Pressure29.77 inHg
Wind14.1 mph NW
Humidity10%
Visibility6.2 mi
Dew point27°
Mon, 1098° / 59°0Clear
98 °Clear

Decker, Monday, 10 August

Clear. High 98°, low 59°.

Pressure29.80 inHg
Wind3.3 mph NE
Humidity17%
Visibility6.2 mi
Dew point37°
Tue, 1196° / 64°0Clear
96 °Clear

Decker, Tuesday, 11 August

Clear. High 96°, low 64°.

Pressure29.83 inHg
Wind8.2 mph N
Humidity19%
Visibility6.2 mi
Dew point42°
Wed, 1294° / 68°0Overcast
94 °Overcast

Decker, Wednesday, 12 August

Overcast. High 94°, low 68°.

Pressure29.74 inHg
Wind4.9 mph N
Humidity24%
Visibility6.2 mi
Dew point46°
Thu, 1394° / 67°0.05Light rain
94 °Light rain

Decker, Thursday, 13 August

Light rain. High 94°, low 67°.

Pressure29.83 inHg
Wind19.9 mph SE
Humidity33%
Visibility—
Dew point52°
Fri, 1491° / 70°0.02Light rain
91 °Light rain

Decker, Friday, 14 August

Light rain. High 91°, low 70°.

Pressure29.80 inHg
Wind20 mph SE
Humidity29%
Visibility—
Dew point49°
Sat, 1592° / 67°0.01Light rain
92 °Light rain

Decker, Saturday, 15 August

Light rain. High 92°, low 67°.

Pressure29.91 inHg
Wind17.8 mph SE
Humidity21%
Visibility—
Dew point43°
Sun, 1694° / 63°0.01Light rain
94 °Light rain

Decker, Sunday, 16 August

Light rain. High 94°, low 63°.

Pressure29.94 inHg
Wind9 mph NE
Humidity24%
Visibility—
Dew point45°
Mon, 1797° / 66°0.01Light rain
97 °Light rain

Decker, Monday, 17 August

Light rain. High 97°, low 66°.

Pressure29.91 inHg
Wind12.1 mph NW
Humidity16%
Visibility—
Dew point38°
Tue, 18100° / 70°0Partly cloudy
100 °Partly cloudy

Decker, Tuesday, 18 August

Partly cloudy. High 100°, low 70°.

Pressure29.83 inHg
Wind21.1 mph N
Humidity17%
Visibility—
Dew point43°
Wed, 1985° / 65°0Mostly clear
85 °Mostly clear

Decker, Wednesday, 19 August

Mostly clear. High 85°, low 65°.

Pressure29.97 inHg
Wind18.5 mph NW
Humidity33%
Visibility—
Dew point48°
Thu, 2094° / 62°0Overcast
94 °Overcast

Decker, Thursday, 20 August

Overcast. High 94°, low 62°.

Pressure29.88 inHg
Wind11.1 mph NE
Humidity25%
Visibility—
Dew point44°
Fri, 21101° / 67°0Clear
101 °Clear

Decker, Friday, 21 August

Clear. High 101°, low 67°.

Pressure29.77 inHg
Wind16.8 mph NE
Humidity13%
Visibility—
Dew point35°
Sat, 2296° / 66°0.09Light rain
96 °Light rain

Decker, Saturday, 22 August

Light rain. High 96°, low 66°.

Pressure29.91 inHg
Wind16.5 mph E
Humidity22%
Visibility—
Dew point43°
Sun, 2394° / 65°0Clear
94 °Clear

Decker, Sunday, 23 August

Clear. High 94°, low 65°.

Pressure29.97 inHg
Wind16.9 mph NE
Humidity31%
Visibility—
Dew point50°

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 Decker, 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 Decker, 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.