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

Tropical Storm Arthur and Heavy Rainfall in the South; Severe Weather in the Midwest

An outbreak of severe thunderstorms is expected across portions of Illinois and Indiana tonight. Intense tornadoes, swaths of damaging gusts, and hail in excess of 2 inches in diameter possible. Tropical Storm Arthur will continue to produce strong winds across coastal Upper Texas and Louisiana tonight, as well as potentially life-threatening flooding across southern Louisiana into Mississippi. Read More >

Current conditions at

Buffalo (K2WX)

Lat: 45.6°NLon: 103.55°WElev: 3002ft.

47°F

8°C

Humidity 97%
Wind Speed NW 12 mph
Barometer 29.94 in (1013.5 mb)
Dewpoint 46°F (8°C)
Visibility NA
Wind Chill42°F (6°C)
Last update 18 Jun 4:56 am MDT
Extended Forecast for

13 Miles SSW Reva SD

  • Today

    Today: A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.

    High: 71 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Tonight

    Tonight: A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 48. Northwest wind 8 to 14 mph, with gusts as high as 22 mph.

    Low: 48 °F

    Chance
    Showers then
    Partly Cloudy

  • Juneteenth

    Juneteenth: Sunny, with a high near 72. Breezy, with a northwest wind 15 to 22 mph, with gusts as high as 32 mph.

    High: 72 °F

    Sunny and
    Breezy

  • Friday Night

    Friday Night: Partly cloudy, with a low around 49. North wind 9 to 16 mph becoming east after midnight. Winds could gust as high as 25 mph.

    Low: 49 °F

    Partly Cloudy

  • Saturday

    Saturday: A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 71. Windy, with a southeast wind 17 to 22 mph increasing to 27 to 32 mph in the afternoon. Winds could gust as high as 46 mph.

    High: 71 °F

    Partly Sunny
    and Breezy
    then Chance
    Showers and
    Windy

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 50. Windy, with an east wind 21 to 30 mph, with gusts as high as 43 mph. Chance of precipitation is 90%.

    Low: 50 °F

    Chance
    T-storms and
    Windy then
    Showers and
    Breezy

  • Sunday

    Sunday: Showers and possibly a thunderstorm. High near 62. Breezy. Chance of precipitation is 80%.

    High: 62 °F

    Showers and
    Breezy

  • Sunday Night

    Sunday Night: A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 48.

    Low: 48 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

  • Monday

    Monday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 67.

    High: 67 °F

    Chance
    Showers

Detailed Forecast

Today
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 71. Northwest wind 11 to 14 mph, with gusts as high as 25 mph.
Tonight
A 30 percent chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 48. Northwest wind 8 to 14 mph, with gusts as high as 22 mph.
Juneteenth
Sunny, with a high near 72. Breezy, with a northwest wind 15 to 22 mph, with gusts as high as 32 mph.
Friday Night
Partly cloudy, with a low around 49. North wind 9 to 16 mph becoming east after midnight. Winds could gust as high as 25 mph.
Saturday
A 50 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 71. Windy, with a southeast wind 17 to 22 mph increasing to 27 to 32 mph in the afternoon. Winds could gust as high as 46 mph.
Saturday Night
A chance of showers and thunderstorms, then showers and possibly a thunderstorm after midnight. Low around 50. Windy, with an east wind 21 to 30 mph, with gusts as high as 43 mph. Chance of precipitation is 90%.
Sunday
Showers and possibly a thunderstorm. High near 62. Breezy. Chance of precipitation is 80%.
Sunday Night
A slight chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 48.
Monday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 67.
Monday Night
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 46.
Tuesday
Mostly sunny, with a high near 73.
Tuesday Night
Mostly clear, with a low around 49.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
13 Miles SSW Reva SD
 45.36°N 103.2°W (Elev. 3245 ft)
Last Update:
4:57 am MDT Jun 18, 2026
Forecast Valid:
5am MDT Jun 18, 2026-6pm MDT Jun 24, 2026
 
Forecast Discussion
 
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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