Jefferson, SD Weather Forecast
Local 7-day forecast
Slight Chance Showers And Thunderstorms then Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Jefferson, SD in one place.
A slight chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 91. South wind 10 to 15 mph, with gusts as high as 30 mph. Chance of precipitation is 20%.
Local Weather Overview
This forecast page for Jefferson, 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: Aug 27, 2026 7:47 PM CDT.
The active forecast window currently covers Aug 29 to Sep 2, 2026 for Jefferson, SD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 29 to Sep 2, 2026
- Latest sync
- Aug 27, 2026 7:47 PM CDT
- Forecast office
- FSD
- Source
- NOAA / NWS
Daily Outlook
This Week in Jefferson
Sunday looks like the warmest upcoming period in Jefferson at 93 degrees F.
Monday Night is the coolest period ahead with temperatures near 67 degrees F.
The strongest winds are forecast for Saturday at about 10 to 15 mph S.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 27, 2026 7:47 PM CDT
- Coverage
- 5 days
- Time zone
- America/Chicago
- Forecast office
- FSD
- Radar station
- KFSD
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 74. South wind 5 to 10 mph.
Mostly sunny, with a high near 93.
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
A slight chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 89.
A chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 67. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1pm. Partly sunny, with a high near 87. Chance of precipitation is 40%.
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 67. Chance of precipitation is 30%.
A chance of showers and thunderstorms before 7am. Mostly sunny, with a high near 89. Chance of precipitation is 30%.
A chance of showers and thunderstorms after 7pm. Partly cloudy, with a low around 69. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Saturday
Aug 29
|
Slight Chance Showers And Thunderstorms then Mostly Sunny
|
91°F |
10 to 15 mph
S
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
74°F |
5 to 10 mph
S
|
|
Sunday
Aug 30
|
Mostly Sunny
|
93°F |
5 to 10 mph
S
|
|
Sunday Night
Aug 30
|
Partly Cloudy then Slight Chance Showers And Thunderstorms
|
72°F |
5 mph
SW
|
|
Monday
Aug 31
|
Slight Chance Showers And Thunderstorms
|
89°F |
5 to 10 mph
NNW
|
|
Monday Night
Aug 31
|
Partly Cloudy then Chance Showers And Thunderstorms
|
67°F |
0 to 5 mph
W
|
|
Tuesday
Sep 1
|
Chance Showers And Thunderstorms
|
87°F |
0 to 5 mph
SE
|
|
Tuesday Night
Sep 1
|
Chance Showers And Thunderstorms
|
67°F |
0 to 5 mph
E
|
|
Wednesday
Sep 2
|
Chance Showers And Thunderstorms then Mostly Sunny
|
89°F |
0 to 5 mph
SSE
|
|
Wednesday Night
Sep 2
|
Chance Showers And Thunderstorms
|
69°F |
5 mph
S
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Jefferson.