Dewey, SD Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Dewey, SD in one place.
Mostly sunny. High near 59, with temperatures falling to around 48 in the afternoon. West northwest wind 5 to 10 mph.
Local Weather Overview
This forecast page for Dewey, SD is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Nov 5, 2026 5:32 PM MST.
The active forecast window currently covers Nov 6 to Nov 11, 2026 for Dewey, SD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Nov 6 to Nov 11, 2026
- Latest sync
- Nov 5, 2026 5:32 PM MST
- Forecast office
- UNR
- Source
- NOAA / NWS
Daily Outlook
This Week in Dewey
Sunday looks like the warmest upcoming period in Dewey at 65 degrees F.
Friday Night is the coolest period ahead with temperatures near 30 degrees F.
The strongest winds are forecast for Friday at about 5 to 10 mph WNW.
The forecast from Nov 6 through Nov 11 stays mostly dry.
Forecast Details
- Last updated
- Nov 5, 2026 5:32 PM MST
- Coverage
- 7 days
- Time zone
- America/Denver
- Forecast office
- UNR
- Radar station
- KUDX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Clear, with a low around 30. North wind 0 to 5 mph.
Sunny, with a high near 60. West northwest wind 5 to 10 mph.
Mostly clear, with a low around 34.
Sunny, with a high near 65.
Mostly clear, with a low around 36.
Sunny, with a high near 57.
Partly cloudy, with a low around 34.
Mostly sunny, with a high near 60.
Mostly clear, with a low around 35.
Sunny, with a high near 60.
Mostly clear, with a low around 36.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Nov 6
|
Mostly Sunny
|
59°F |
5 to 10 mph
WNW
|
|
Friday Night
Nov 6
|
Clear
|
30°F |
0 to 5 mph
N
|
|
Saturday
Nov 7
|
Sunny
|
60°F |
5 to 10 mph
WNW
|
|
Saturday Night
Nov 7
|
Mostly Clear
|
34°F |
0 to 5 mph
WNW
|
|
Sunday
Nov 8
|
Sunny
|
65°F |
0 to 5 mph
W
|
|
Sunday Night
Nov 8
|
Mostly Clear
|
36°F |
0 to 5 mph
WNW
|
|
Monday
Nov 9
|
Sunny
|
57°F |
0 to 5 mph
SW
|
|
Monday Night
Nov 9
|
Partly Cloudy
|
34°F |
0 to 5 mph
ENE
|
|
Tuesday
Nov 10
|
Mostly Sunny
|
60°F |
0 to 10 mph
NW
|
|
Tuesday Night
Nov 10
|
Mostly Clear
|
35°F |
0 to 5 mph
N
|
|
Veterans Day
Nov 11
|
Sunny
|
60°F |
5 mph
WNW
|
|
Wednesday Night
Nov 11
|
Mostly Clear
|
36°F |
0 to 5 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Dewey.