Fort Thompson, SD Weather Forecast

Feedback E-mail the Weather

Quick Weather Clicks

Fort Thompson, SD Weather Forecast

Current Conditions

Settings
Fort Thompson SD weather  - Overcast - 65°F
Overcast
65°F
Updated 8:45 am
Feels Like 54°F
Humidity 90%
Wind S 10 mph
Barometer  30.14 in
Dew Point 62°F
Fort Thompson SD weather  - Overcast - 18°C
Overcast
18°C
Updated 8:45 am
Feels Like 12°C
Humidity 90%
Wind S 16 km/h
Barometer  102.1 kPa
Dew Point 17°C

Fort Thompson Weather Forecast

TODAY TONIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT
Fort Thompson, SD Weather - Today Mostly Cloudy Fort Thompson, SD Weather - Tonight Mostly Cloudy Fort Thompson, SD Weather - Friday Chance Of Showers Fort Thompson, SD Weather - Friday Night Chance Of Showers Fort Thompson, SD Weather - Saturday Mostly Cloudy Fort Thompson, SD Weather - Saturday Night Partly Cloudy Fort Thompson, SD Weather - Sunday Mostly Cloudy Fort Thompson, SD Weather - Sunday Night Mostly Cloudy Fort Thompson, SD Weather - Monday Chance Of T-Storm Fort Thompson, SD Weather - Monday Night Chance Of T-Storm Fort Thompson, SD Weather - Tuesday Chance Of Showers Fort Thompson, SD Weather - Tuesday Night Chance Of Showers
Mostly Cloudy Mostly Cloudy Chance of Showers Chance of Showers Mostly Cloudy Partly Cloudy Mostly Cloudy Mostly Cloudy Chance of T-Storm Chance of T-Storm Chance of Showers Chance of Showers
Hi: 71°FHi: 22°C
Lo: 55°FLo: 13°C Hi: 65°FHi: 18°C
Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
Lo: 55°FLo: 13°C Hi: 71°FHi: 22°C
Lo: 59°FLo: 15°C
Hi: 71°FHi: 22°C
Lo: 59°FLo: 15°C
Hi: 71°FHi: 22°C
Lo: 55°FLo: 13°C Hi: 61°FHi: 16°C
Lo: 49°FLo: 9°C
POP: 50% POP: 50% POP: 50% POP: 80% POP: 50% POP: 30%
POP = Probability of Precipitation.
Weather Outlook Updated: 742 AM CDT Thu Sep 24 2026 Fort Thompson, SD Weather - WeatherWorld.com

Trending Headlines

Fort Thompson Radar Loop

Use the map search tool if you want to place a location marker on the radar map...

Fort Thompson Quick Facts

National Two Day Weather Forecast


E-mail the Fort Thompson Weather Forecast

Voice your opinion or tell us about page issues...

Fort Thompson Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 648 AM CDT Thu Sep 24 2026

Key Messages

  • Scattered rain showers and weak thunderstorms will continue this morning with the last of the rain exiting the region by the midday. There is a 60-95% chance to see a quarter of an inch of rain or more along and east of the James River, with the highest chance along and east of I29.
  • Another round of rain arrives Friday afternoon into Saturday morning. There is a 40-60% chance to see a quarter of an inch or more through Saturday morning.
  • Expect temperatures near normal for the next fe...