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Severe Thunderstorms and Heavy Rainfall; Typhoon Watch in Guam and CNMI

Heavy to excessive rainfall will continue through tonight from the Texas Big Bend region into southern Oklahoma. Scattered damaging wind gusts and a few tornadoes may accompany a line of severe thunderstorms that is expected across the Mid-Atlantic into New England Friday. A Typhoon Watch continues for Guam and CNMI as Tropical Storm Champi will strengthen and approach the islands this weekend. Read More >

Hazardous Weather Conditions

Current conditions at

Sisseton, Sisseton Municipal Airport (K8D3)

Lat: 45.67°NLon: 96.99°WElev: 1161ft.

Breezy

45°F

7°C

Humidity 83%
Wind Speed NW 21 mph
Barometer 30.14 in (1021.2 mb)
Dewpoint 40°F (4°C)
Visibility NA
Wind Chill37°F (3°C)
Last update 15 Oct 9:56 pm CDT
Extended Forecast for

Ortley SD

  • Tonight

    Tonight: Showers likely, mainly before 3am, then a chance of sprinkles after 4am. Cloudy, with a low around 36. Breezy, with a north northwest wind 24 to 26 mph, with gusts as high as 44 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 36 °F

    Showers
    Likely and
    Breezy

  • Friday

    Friday: Cloudy through mid morning, then gradual clearing, with a high near 46. Breezy, with a north wind 19 to 24 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 39 mph.

    High: 46 °F

    Decreasing
    Clouds and
    Breezy then
    Sunny

  • Friday Night

    Friday Night: Widespread frost between 8pm and 1am. Otherwise, clear, with a low around 33. Light and variable wind becoming south southwest 9 to 14 mph in the evening. Winds could gust as high as 25 mph.

    Low: 33 °F

    Frost

  • Saturday

    Saturday: Sunny, with a high near 58. Breezy, with a south southwest wind 18 to 22 mph, with gusts as high as 36 mph.

    High: 58 °F

    Sunny and
    Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 45. South southwest wind 15 to 18 mph, with gusts as high as 33 mph.

    Low: 45 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 65. South southwest wind 7 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.

    High: 65 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 41. North wind around 5 mph.

    Low: 41 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 62. East wind 5 to 8 mph.

    High: 62 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 44. Southeast wind around 6 mph.

    Low: 44 °F

    Mostly Clear

Detailed Forecast

Tonight
Showers likely, mainly before 3am, then a chance of sprinkles after 4am. Cloudy, with a low around 36. Breezy, with a north northwest wind 24 to 26 mph, with gusts as high as 44 mph. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch possible.
Friday
Cloudy through mid morning, then gradual clearing, with a high near 46. Breezy, with a north wind 19 to 24 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 39 mph.
Friday Night
Widespread frost between 8pm and 1am. Otherwise, clear, with a low around 33. Light and variable wind becoming south southwest 9 to 14 mph in the evening. Winds could gust as high as 25 mph.
Saturday
Sunny, with a high near 58. Breezy, with a south southwest wind 18 to 22 mph, with gusts as high as 36 mph.
Saturday Night
Mostly clear, with a low around 45. South southwest wind 15 to 18 mph, with gusts as high as 33 mph.
Sunday
Sunny, with a high near 65. South southwest wind 7 to 13 mph becoming northwest in the afternoon. Winds could gust as high as 23 mph.
Sunday Night
Mostly clear, with a low around 41. North wind around 5 mph.
Monday
Sunny, with a high near 62. East wind 5 to 8 mph.
Monday Night
Mostly clear, with a low around 44. Southeast wind around 6 mph.
Tuesday
Sunny, with a high near 66.
Tuesday Night
Mostly clear, with a low around 51.
Wednesday
A slight chance of showers. Mostly sunny, with a high near 68. Chance of precipitation is 20%.
Wednesday Night
Partly cloudy, with a low around 52.
Thursday
Partly sunny, with a high near 67.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Ortley SD
 45.33°N 97.21°W (Elev. 1847 ft)
Last Update:
10:16 pm CDT Oct 15, 2026
Forecast Valid:
10pm CDT Oct 15, 2026-6pm CDT Oct 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation