Dewey County, SD Weather Forecast
County weather hub
Partly Sunny then Slight Chance Showers And Thunderstorms
Compare major city weather across Dewey County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A slight chance of showers and thunderstorms after noon. Partly sunny, with a high near 76. Chance of precipitation is 20%.
County Weather Overview
This county weather page brings together forecast coverage for Dewey County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 1 of 1 mapped cities in Dewey County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- May 31, 2026
- Latest sync
- May 25, 2026 9:39 AM MDT
- Forecast office
- ABR
- Source
- NOAA / NWS
Daily Outlook
This Week in Dewey County
Sunday looks like the warmest upcoming period in Dewey County at 76 degrees F.
Sunday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Sunday at about 17 mph SE.
Precipitation is mentioned in 2 upcoming forecast periods.
Forecast Details
- Last updated
- May 25, 2026 9:39 AM MDT
- Coverage
- 2 days
- Time zone
- America/Denver
- Forecast office
- ABR
- Radar station
- KBIS
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 53. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Sunday
May 31
|
Partly Sunny then Slight Chance Showers And Thunderstorms
|
76°F |
17 mph
SE
|
|
Sunday Night
May 31
|
Slight Chance Showers And Thunderstorms then Mostly Cloudy
|
53°F |
10 to 16 mph
ESE
|
Major City Forecasts
Live forecast snapshots for major cities across Dewey County.
Coverage
Forecast coverage currently spans 1 of 1 mapped cities in Dewey County.
Largest mapped city population in this region: 1,418.
