Dempster, SD Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Dempster, SD in one place.
Mostly sunny. High near 84, with temperatures falling to around 78 in the afternoon. South southwest wind around 13 mph.
Local Weather Overview
This forecast page for Dempster, 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: Jul 24, 2026 5:41 PM CDT.
The active forecast window currently covers Jul 24 to Jul 30, 2026 for Dempster, SD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 24 to Jul 30, 2026
- Latest sync
- Jul 24, 2026 5:41 PM CDT
- Forecast office
- ABR
- Source
- NOAA / NWS
Daily Outlook
This Week in Dempster
Saturday looks like the warmest upcoming period in Dempster at 97 degrees F.
Thursday Night is the coolest period ahead with temperatures near 66 degrees F.
The strongest winds are forecast for Tonight at about 10 to 14 mph SSW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 24, 2026 5:41 PM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- ABR
- Radar station
- KFSD
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Mostly clear, with a low around 69. South southwest wind 10 to 14 mph, with gusts as high as 23 mph.
Sunny, with a high near 97. Heat index values as high as 99. West southwest wind around 10 mph.
Mostly cloudy, with a low around 75. Heat index values as high as 99. South wind around 10 mph.
A slight chance of showers and thunderstorms between 7am and 1pm. Mostly sunny, with a high near 96. South wind 8 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
Mostly clear, with a low around 71. East wind 6 to 12 mph.
Sunny, with a high near 95. North wind 7 to 12 mph.
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 69. Northeast wind 3 to 8 mph. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 93. South southeast wind 5 to 8 mph. Chance of precipitation is 20%.
Mostly clear, with a low around 68.
Sunny, with a high near 92.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 69. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms before 1am. Mostly clear, with a low around 66. Chance of precipitation is 20%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Jul 24
|
Mostly Sunny
|
84°F |
13 mph
SSW
|
|
Tonight
Jul 24
|
Mostly Clear
|
69°F |
10 to 14 mph
SSW
|
|
Saturday
Jul 25
|
Sunny
|
97°F |
10 mph
WSW
|
|
Saturday Night
Jul 25
|
Mostly Cloudy
|
75°F |
10 mph
S
|
|
Sunday
Jul 26
|
Slight Chance Showers And Thunderstorms
|
96°F |
8 to 14 mph
S
|
|
Sunday Night
Jul 26
|
Mostly Clear
|
71°F |
6 to 12 mph
E
|
|
Monday
Jul 27
|
Sunny
|
95°F |
7 to 12 mph
N
|
|
Monday Night
Jul 27
|
Mostly Clear then Slight Chance Showers And Thunderstorms
|
69°F |
3 to 8 mph
NE
|
|
Tuesday
Jul 28
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
93°F |
5 to 8 mph
SSE
|
|
Tuesday Night
Jul 28
|
Mostly Clear
|
68°F |
7 mph
ENE
|
|
Wednesday
Jul 29
|
Sunny
|
92°F |
6 to 9 mph
SSE
|
|
Wednesday Night
Jul 29
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
69°F |
8 mph
SSE
|
|
Thursday
Jul 30
|
Slight Chance Showers And Thunderstorms
|
91°F |
6 to 10 mph
SSW
|
|
Thursday Night
Jul 30
|
Slight Chance Showers And Thunderstorms
|
66°F |
5 to 8 mph
WSW
|
Nearby Forecasts
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