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As of 14:31 MDT

Weather in Dewey, SD

95°Current weather

Dewey, Saturday, 8 August, 14:31

Clear. Feels like 91°. High 96°, low 65°.

Pressure29.68 inHg
Wind4.5 mph NE
Humidity17%
Visibility6.2 mi
Dew point42°
Sun, 0991° / 68°0Overcast
91 °Overcast

Dewey, Sunday, 9 August

Overcast. High 91°, low 68°.

Pressure29.77 inHg
Wind16.3 mph SE
Humidity13%
Visibility6.2 mi
Dew point35°
Mon, 10101° / 69°0Clear
101 °Clear

Dewey, Monday, 10 August

Clear. High 101°, low 69°.

Pressure29.74 inHg
Wind5.9 mph SW
Humidity21%
Visibility6.2 mi
Dew point46°
Tue, 1198° / 69°0Clear
98 °Clear

Dewey, Tuesday, 11 August

Clear. High 98°, low 69°.

Pressure29.77 inHg
Wind13.7 mph SE
Humidity25%
Visibility6.2 mi
Dew point51°
Wed, 1295° / 68°0Overcast
95 °Overcast

Dewey, Wednesday, 12 August

Overcast. High 95°, low 68°.

Pressure29.77 inHg
Wind10.3 mph S
Humidity27%
Visibility6.2 mi
Dew point52°
Thu, 1380° / 65°0.1Light rain
80 °Light rain

Dewey, Thursday, 13 August

Light rain. High 80°, low 65°.

Pressure30.00 inHg
Wind24 mph E
Humidity56%
Visibility—
Dew point57°
Fri, 1493° / 66°0.15Rain
93 °Rain

Dewey, Friday, 14 August

Rain. High 93°, low 66°.

Pressure29.85 inHg
Wind27.8 mph S
Humidity35%
Visibility—
Dew point54°
Sat, 1592° / 68°0.05Light rain
92 °Light rain

Dewey, Saturday, 15 August

Light rain. High 92°, low 68°.

Pressure29.94 inHg
Wind15.9 mph E
Humidity25%
Visibility—
Dew point46°
Sun, 1694° / 71°0Clear
94 °Clear

Dewey, Sunday, 16 August

Clear. High 94°, low 71°.

Pressure29.94 inHg
Wind13.7 mph E
Humidity23%
Visibility—
Dew point46°
Mon, 1797° / 74°0Overcast
97 °Overcast

Dewey, Monday, 17 August

Overcast. High 97°, low 74°.

Pressure29.91 inHg
Wind15.8 mph NE
Humidity26%
Visibility—
Dew point49°
Tue, 1898° / 73°0.04Light rain
98 °Light rain

Dewey, Tuesday, 18 August

Light rain. High 98°, low 73°.

Pressure29.91 inHg
Wind15.4 mph S
Humidity15%
Visibility—
Dew point38°
Wed, 1993° / 73°0.01Light rain
93 °Light rain

Dewey, Wednesday, 19 August

Light rain. High 93°, low 73°.

Pressure29.83 inHg
Wind21.2 mph NW
Humidity21%
Visibility—
Dew point43°
Thu, 2086° / 63°0.02Light rain
86 °Light rain

Dewey, Thursday, 20 August

Light rain. High 86°, low 63°.

Pressure30.00 inHg
Wind15.2 mph E
Humidity47%
Visibility—
Dew point54°
Fri, 2197° / 68°0Clear
97 °Clear

Dewey, Friday, 21 August

Clear. High 97°, low 68°.

Pressure29.83 inHg
Wind15.2 mph E
Humidity25%
Visibility—
Dew point47°
Sat, 2284° / 71°0.02Light rain
84 °Light rain

Dewey, Saturday, 22 August

Light rain. High 84°, low 71°.

Pressure30.00 inHg
Wind20.8 mph E
Humidity36%
Visibility—
Dew point50°
Sun, 2391° / 64°0.01Light rain
91 °Light rain

Dewey, Sunday, 23 August

Light rain. High 91°, low 64°.

Pressure29.97 inHg
Wind17.2 mph E
Humidity40%
Visibility—
Dew point54°

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 Dewey, SD 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 Dewey, SD 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.