10-day forecast for Dewey, SD: 28° to 73°, with precipitation expected on 3 days. The table below breaks each day into morning, afternoon, evening and overnight.
73°
Best day: Friday, October 23
38° · 0.61 in
Worst day: Monday, October 26
Tap any day below to see morning, afternoon, evening and overnight.
Sat, 2453° / 37°0
Morning38°feels 30°
Afternoon48°feels 48°
Evening42°feels 37°
Overnight46°feels 38°
53 °
Dewey, Saturday, 24 October
Partly cloudy. High 53°, low 37°.
Pressure30.39 inHg
Wind10.3 mph NW
Humidity51%
Visibility6.2 mi
Dew point23°
Sun, 2545° / 38°0.06
Morning42°feels 37°
Afternoon45°feels 41°
Evening39°feels 33°
Overnight40°feels 34°
45 °
Dewey, Sunday, 25 October
Light rain. High 45°, low 38°.
Pressure30.33 inHg
Wind9.7 mph E
Humidity56%
Visibility6.2 mi
Dew point27°
Mon, 2638° / 28°0.61
Morning35°feels 30°
Afternoon32°feels 29°
Evening29°feels 23°
Overnight38°feels 32°
38 °
Dewey, Monday, 26 October
Snow. High 38°, low 28°.
Pressure30.39 inHg
Wind5.1 mph SW
Humidity100%
Visibility0.1 mi
Dew point33°
Tue, 2744° / 29°0.03
Morning33°feels 27°
Afternoon42°feels 40°
Evening41°feels 33°
Overnight30°feels 23°
44 °
Dewey, Tuesday, 27 October
Light rain. High 44°, low 29°.
Pressure29.97 inHg
Wind4.8 mph E
Humidity85%
Visibility6.2 mi
Dew point35°
Wed, 2857° / 31°0
Morning38°feels 37°
Afternoon51°feels 47°
Evening50°feels 47°
Overnight45°feels 43°
57 °
Dewey, Wednesday, 28 October
Partly cloudy. High 57°, low 31°.
Pressure30.09 inHg
Wind8.4 mph SE
Humidity47%
Visibility—
Dew point29°
Thu, 2956° / 42°0
Morning45°feels 44°
Afternoon52°feels 49°
Evening49°feels 43°
Overnight45°feels 40°
56 °
Dewey, Thursday, 29 October
Mostly clear. High 56°, low 42°.
Pressure30.12 inHg
Wind15.5 mph E
Humidity39%
Visibility—
Dew point27°
Fri, 3065° / 41°0
Morning46°feels 42°
Afternoon56°feels 54°
Evening56°feels 53°
Overnight50°feels 47°
65 °
Dewey, Friday, 30 October
Overcast. High 65°, low 41°.
Pressure29.85 inHg
Wind10.5 mph E
Humidity54%
Visibility—
Dew point38°
Sat, 3165° / 44°0
Morning49°feels 48°
Afternoon61°feels 58°
Evening55°feels 52°
Overnight48°feels 45°
65 °
Dewey, Saturday, 31 October
Overcast. High 65°, low 44°.
Pressure29.80 inHg
Wind9 mph W
Humidity27%
Visibility—
Dew point25°
Sun, 0154° / 45°0.2
Morning48°feels 44°
Afternoon52°feels 51°
Evening51°feels 50°
Overnight50°feels 48°
54 °
Dewey, Sunday, 1 November
Rain. High 54°, low 45°.
Pressure29.94 inHg
Wind17.3 mph E
Humidity71%
Visibility—
Dew point42°
About this forecast
How reliable is a 10-day forecast?
The first 3–5 days are the most reliable, typically within 2–4°. From day six to ten the models show the trend: the direction of change is right more often than the exact numbers.
What does the time-of-day table show?
Temperature in Dewey, SD around 8am, 2pm, 8pm and 2am each day — handy for planning a walk, a drive or work outdoors.
How is the best day chosen?
We weigh the daytime high against precipitation: a warm, dry day scores highest.