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

Hazardous Weather Conditions

Current conditions at

Brookings, Brookings Municipal Airport (KBKX)

Lat: 44.3°NLon: 96.82°WElev: 1647ft.

Fair

45°F

7°C

Humidity 66%
Wind Speed Calm
Barometer 30.15 in (1022.2 mb)
Dewpoint 34°F (1°C)
Visibility 10.00 mi
Last update 13 May 3:56 am CDT
Extended Forecast for

Sinai SD

  • Today

    Today: Sunny, with a high near 77. Calm wind becoming west around 5 mph in the morning.

    High: 77 °F

    Sunny

  • Tonight

    Tonight: Partly cloudy, with a low around 51. Breezy, with a southeast wind 5 to 15 mph increasing to 15 to 25 mph after midnight. Winds could gust as high as 35 mph.

    Low: 51 °F

    Mostly Clear
    then Partly
    Cloudy and
    Breezy

  • Thursday

    Thursday: A chance of sprinkles before 1pm, then a chance of sprinkles after 5pm. Mostly sunny, with a high near 81. Windy, with a south wind 25 to 30 mph increasing to 30 to 35 mph in the morning. Winds could gust as high as 45 mph.

    High: 81 °F

    Chance
    Sprinkles and
    Windy

  • Thursday Night

    Thursday Night: A 30 percent chance of showers, mainly between 7pm and 1am. Mostly clear, with a low around 47. Breezy, with a southwest wind 15 to 20 mph decreasing to 10 to 15 mph in the evening. Winds could gust as high as 30 mph.

    Low: 47 °F

    Chance
    Showers and
    Breezy

  • Friday

    Friday: Sunny, with a high near 79. Breezy, with a west wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph.

    High: 79 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Mostly clear, with a low around 47. West wind 5 to 15 mph, with gusts as high as 25 mph.

    Low: 47 °F

    Mostly Clear

  • Saturday

    Saturday: A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 80.

    High: 80 °F

    Mostly Sunny
    then Chance
    Showers

  • Saturday Night

    Saturday Night: A chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 51. Chance of precipitation is 40%.

    Low: 51 °F

    Chance
    Showers then
    Chance
    T-storms

  • Sunday

    Sunday: A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78. Breezy. Chance of precipitation is 70%.

    High: 78 °F

    Showers
    Likely and
    Breezy

Detailed Forecast

Today
Sunny, with a high near 77. Calm wind becoming west around 5 mph in the morning.
Tonight
Partly cloudy, with a low around 51. Breezy, with a southeast wind 5 to 15 mph increasing to 15 to 25 mph after midnight. Winds could gust as high as 35 mph.
Thursday
A chance of sprinkles before 1pm, then a chance of sprinkles after 5pm. Mostly sunny, with a high near 81. Windy, with a south wind 25 to 30 mph increasing to 30 to 35 mph in the morning. Winds could gust as high as 45 mph.
Thursday Night
A 30 percent chance of showers, mainly between 7pm and 1am. Mostly clear, with a low around 47. Breezy, with a southwest wind 15 to 20 mph decreasing to 10 to 15 mph in the evening. Winds could gust as high as 30 mph.
Friday
Sunny, with a high near 79. Breezy, with a west wind 10 to 15 mph increasing to 20 to 25 mph in the afternoon. Winds could gust as high as 35 mph.
Friday Night
Mostly clear, with a low around 47. West wind 5 to 15 mph, with gusts as high as 25 mph.
Saturday
A 30 percent chance of showers after 1pm. Mostly sunny, with a high near 80.
Saturday Night
A chance of showers, with thunderstorms also possible after 1am. Partly cloudy, with a low around 51. Chance of precipitation is 40%.
Sunday
A chance of showers, then showers likely and possibly a thunderstorm after 1pm. Mostly cloudy, with a high near 78. Breezy. Chance of precipitation is 70%.
Sunday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 49. Breezy. Chance of precipitation is 70%.
Monday
A 40 percent chance of showers. Mostly cloudy, with a high near 67. Breezy.
Monday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 41. Breezy.
Tuesday
Mostly cloudy, with a high near 64. Breezy.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sinai SD
 44.22°N 97.04°W (Elev. 1745 ft)
Last Update:
2:58 am CDT May 13, 2026
Forecast Valid:
4am CDT May 13, 2026-6pm CDT May 19, 2026
 
Forecast Discussion
 
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Additional Resources

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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