Brant Lake, SD Weather Forecast
Local 7-day forecast
Mostly Cloudy
Track current conditions, temperature changes, wind, and the full daily outlook for Brant Lake, SD in one place.
Mostly cloudy. Low around 64, with temperatures rising to around 68 overnight. South southeast wind around 15 mph, with gusts as high as 25 mph.
Local Weather Overview
This forecast page for Brant Lake, 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: Jun 8, 2026 4:19 AM CDT.
The active forecast window currently covers Jun 8 to Jun 14, 2026 for Brant Lake, SD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 8 to Jun 14, 2026
- Latest sync
- Jun 8, 2026 4:19 AM CDT
- Forecast office
- FSD
- Source
- NOAA / NWS
Daily Outlook
This Week in Brant Lake
Tuesday looks like the warmest upcoming period in Brant Lake at 95 degrees F.
Saturday Night is the coolest period ahead with temperatures near 53 degrees F.
The strongest winds are forecast for Tuesday at about 5 to 25 mph SSE.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 4:19 AM CDT
- Coverage
- 7 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
A slight chance of rain showers between 1pm and 3pm, then a slight chance of showers and thunderstorms. Partly sunny, with a high near 89. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
A chance of showers and thunderstorms before 11pm, then a chance of showers and thunderstorms between 11pm and midnight, then a slight chance of showers and thunderstorms between midnight and 1am, then a chance of showers and thunderstorms between 3am and 5am. Mostly cloudy, with a low around 65. Southeast wind 5 to 10 mph. Chance of precipitation is 30%. New rainfall amounts between a tenth and quarter of an inch possible.
Mostly sunny, with a high near 95. South southeast wind 5 to 25 mph, with gusts as high as 40 mph.
Showers and thunderstorms between 7pm and 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 69. South wind 20 to 25 mph, with gusts as high as 40 mph. Chance of precipitation is 80%.
A chance of showers and thunderstorms before 7am. Sunny, with a high near 88. West southwest wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 40%.
Mostly clear, with a low around 59.
Mostly sunny, with a high near 79.
Mostly clear, with a low around 55.
Sunny, with a high near 83.
A slight chance of showers and thunderstorms after 1am. Mostly clear, with a low around 56.
A slight chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 77.
Partly cloudy, with a low around 53.
A slight chance of rain showers between 7am and 1pm. Mostly sunny, with a high near 74.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Jun 8
|
Mostly Cloudy
|
64°F |
15 mph
SSE
|
|
Monday
Jun 8
|
Partly Sunny then Slight Chance Showers And Thunderstorms
|
89°F |
10 to 15 mph
S
|
|
Monday Night
Jun 8
|
Chance Showers And Thunderstorms
|
65°F |
5 to 10 mph
SE
|
|
Tuesday
Jun 9
|
Mostly Sunny
|
95°F |
5 to 25 mph
SSE
|
|
Tuesday Night
Jun 9
|
Showers And Thunderstorms
|
69°F |
20 to 25 mph
S
|
|
Wednesday
Jun 10
|
Chance Showers And Thunderstorms then Sunny
|
88°F |
15 to 25 mph
WSW
|
|
Wednesday Night
Jun 10
|
Mostly Clear
|
59°F |
5 to 25 mph
WNW
|
|
Thursday
Jun 11
|
Mostly Sunny
|
79°F |
10 to 25 mph
WNW
|
|
Thursday Night
Jun 11
|
Mostly Clear
|
55°F |
5 to 25 mph
W
|
|
Friday
Jun 12
|
Sunny
|
83°F |
10 to 15 mph
WSW
|
|
Friday Night
Jun 12
|
Mostly Clear then Slight Chance Showers And Thunderstorms
|
56°F |
5 to 15 mph
WSW
|
|
Saturday
Jun 13
|
Slight Chance Showers And Thunderstorms
|
77°F |
5 to 20 mph
NNW
|
|
Saturday Night
Jun 13
|
Partly Cloudy
|
53°F |
5 to 20 mph
N
|
|
Sunday
Jun 14
|
Slight Chance Rain Showers
|
74°F |
10 to 15 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Brant Lake.