National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Sinlaku Continues to Impact the Marianas; Severe Weather for the Central Plains and Northeast; Record Warmth for mid-Atlantic to Southeast

Sinlaku continues to affect the Marianas as it moves north through Friday. Meanwhile, severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley today and for the Central/Southern Plains on Friday. Considerable flooding impacts are ongoing in the Upper Great Lakes, and expected to continue through the weekend. Fire weather concerns persist in the Plains. Read More >

Hazardous Weather Conditions

Current conditions at

Rosebud Sioux Tribal Airport (KSUO)

Lat: 43.26°NLon: 100.86°WElev: 2724ft.

Fair

79°F

26°C

Humidity 17%
Wind Speed SW 15 G 26 mph
Barometer 29.60 in
Dewpoint 30°F (-1°C)
Visibility 10.00 mi
Heat Index78°F (26°C)
Last update 16 Apr 1:55 pm CDT
Extended Forecast for

Saint Francis SD

Red Flag Warning until April 16, 08:00pm
Click here for hazard details and duration
Red Flag Warning
  •  
    Red Flag Warning until April 16, 08:00pm

    NOW until 8:00pm Thu

    Red Flag Warning

  • This Afternoon

    High: 80 °F

    Mostly Sunny
    and Breezy

  • Tonight

    Tonight: A 40 percent chance of showers, mainly after 1am. Increasing clouds, with a low around 32. Breezy, with a south wind 11 to 16 mph becoming north 23 to 28 mph after midnight. Winds could gust as high as 39 mph.

    Low: 32 °F

    Chance
    Showers and
    Breezy

  • Friday

    Friday: A chance of rain and snow showers before 11am, then a chance of snow showers. Cloudy, with a high near 44. Wind chill values as low as 18. Breezy, with a north wind around 28 mph, with gusts as high as 40 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.

    High: 44 °F

    Breezy.
    Chance
    Rain/Snow
    then Chance
    Snow Showers

  • Friday Night

    Friday Night: Mostly cloudy, then gradually becoming mostly clear, with a low around 23. Wind chill values as low as 12. Blustery, with a northwest wind 19 to 24 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 34 mph.

    Low: 23 °F

    Mostly Cloudy
    and Blustery
    then Partly
    Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 52. Windy, with a northwest wind 18 to 23 mph increasing to 26 to 31 mph in the afternoon. Winds could gust as high as 43 mph.

    High: 52 °F

    Mostly Sunny
    and Windy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 27. Blustery, with a northwest wind 19 to 24 mph becoming west 8 to 13 mph after midnight. Winds could gust as high as 33 mph.

    Low: 27 °F

    Partly Cloudy
    and Blustery
    then Mostly
    Clear

  • Sunday

    Sunday: Sunny, with a high near 67. Southwest wind 10 to 13 mph becoming east in the afternoon. Winds could gust as high as 21 mph.

    High: 67 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 37. East wind 14 to 17 mph becoming south after midnight. Winds could gust as high as 24 mph.

    Low: 37 °F

    Mostly Clear

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 80. Breezy, with a southwest wind 18 to 21 mph, with gusts as high as 29 mph.
Tonight
A 40 percent chance of showers, mainly after 1am. Increasing clouds, with a low around 32. Breezy, with a south wind 11 to 16 mph becoming north 23 to 28 mph after midnight. Winds could gust as high as 39 mph.
Friday
A chance of rain and snow showers before 11am, then a chance of snow showers. Cloudy, with a high near 44. Wind chill values as low as 18. Breezy, with a north wind around 28 mph, with gusts as high as 40 mph. Chance of precipitation is 40%. Little or no snow accumulation expected.
Friday Night
Mostly cloudy, then gradually becoming mostly clear, with a low around 23. Wind chill values as low as 12. Blustery, with a northwest wind 19 to 24 mph decreasing to 13 to 18 mph after midnight. Winds could gust as high as 34 mph.
Saturday
Mostly sunny, with a high near 52. Windy, with a northwest wind 18 to 23 mph increasing to 26 to 31 mph in the afternoon. Winds could gust as high as 43 mph.
Saturday Night
Mostly clear, with a low around 27. Blustery, with a northwest wind 19 to 24 mph becoming west 8 to 13 mph after midnight. Winds could gust as high as 33 mph.
Sunday
Sunny, with a high near 67. Southwest wind 10 to 13 mph becoming east in the afternoon. Winds could gust as high as 21 mph.
Sunday Night
Mostly clear, with a low around 37. East wind 14 to 17 mph becoming south after midnight. Winds could gust as high as 24 mph.
Monday
Sunny, with a high near 81. Breezy.
Monday Night
Partly cloudy, with a low around 43.
Tuesday
Sunny, with a high near 81.
Tuesday Night
Mostly clear, with a low around 50. Breezy.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 84. Breezy.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Saint Francis SD
 43.15°N 100.9°W (Elev. 2999 ft)
Last Update:
1:32 pm CDT Apr 16, 2026
Forecast Valid:
2pm CDT Apr 16, 2026-6pm CDT Apr 22, 2026
 
Forecast Discussion
 
Get as KML Get as XML

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation