Fort Thompson, SD Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Fort Thompson, SD in one place.
Mostly sunny, with a high near 49. Northwest wind 7 to 21 mph, with gusts as high as 33 mph.
Local Weather Overview
This forecast page for Fort Thompson, 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: Oct 15, 2026 5:23 PM CDT.
The active forecast window currently covers Oct 16 to Oct 21, 2026 for Fort Thompson, SD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 16 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 5:23 PM CDT
- Forecast office
- ABR
- Source
- NOAA / NWS
Daily Outlook
This Week in Fort Thompson
Wednesday looks like the warmest upcoming period in Fort Thompson at 72 degrees F.
Friday Night is the coolest period ahead with temperatures near 35 degrees F.
The strongest winds are forecast for Friday at about 7 to 21 mph NW.
The forecast from Oct 16 through Oct 21 stays mostly dry.
Forecast Details
- Last updated
- Oct 15, 2026 5:23 PM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- ABR
- Radar station
- KABR
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 35. Southwest wind 3 to 12 mph.
Sunny, with a high near 67. South wind 12 to 16 mph, with gusts as high as 26 mph.
Clear, with a low around 45. South wind 7 to 14 mph, with gusts as high as 23 mph.
Sunny, with a high near 68. West northwest wind 5 to 12 mph.
Partly cloudy, with a low around 41. North northeast wind around 8 mph.
Sunny, with a high near 65. East northeast wind 5 to 9 mph.
Mostly clear, with a low around 46.
Sunny, with a high near 69.
Mostly clear, with a low around 52.
Mostly sunny, with a high near 72.
Partly cloudy, with a low around 53.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Oct 16
|
Mostly Sunny
|
49°F |
7 to 21 mph
NW
|
|
Friday Night
Oct 16
|
Clear
|
35°F |
3 to 12 mph
SW
|
|
Saturday
Oct 17
|
Sunny
|
67°F |
12 to 16 mph
S
|
|
Saturday Night
Oct 17
|
Clear
|
45°F |
7 to 14 mph
S
|
|
Sunday
Oct 18
|
Sunny
|
68°F |
5 to 12 mph
WNW
|
|
Sunday Night
Oct 18
|
Partly Cloudy
|
41°F |
8 mph
NNE
|
|
Monday
Oct 19
|
Sunny
|
65°F |
5 to 9 mph
ENE
|
|
Monday Night
Oct 19
|
Mostly Clear
|
46°F |
8 mph
ESE
|
|
Tuesday
Oct 20
|
Sunny
|
69°F |
8 to 15 mph
SE
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
52°F |
9 to 13 mph
SE
|
|
Wednesday
Oct 21
|
Mostly Sunny
|
72°F |
9 to 13 mph
SSE
|
|
Wednesday Night
Oct 21
|
Partly Cloudy
|
53°F |
6 to 10 mph
SSE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Fort Thompson.
Nearby forecast pages are not available for this location yet.
