Remnants of Arthur and Heavy Rainfall Across the South; Fire Weather Threat in the West

Life-threatening, potentially catastrophic flash flooding expected along the central Gulf Coast as the remnants of Arthur track across the area. Isolated brief tornadoes and damaging gusts remain possible overnight in the Southeast. Isolated to scattered dry thunderstorms may cause lightning-ignited fires and erratic behavior due to gusty winds across parts of the West Friday. Read More >

Current conditions at

Sidney-Richland (KSDY)

Lat: 47.7°NLon: 104.2°WElev: 1985.0ft.

Partly Cloudy

54°F

12°C

Humidity 87%
Wind Speed W 6 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 18 Jun 10:20 PM MDT
Extended Forecast for

Sidney MT

  • Tonight

    Tonight: A 20 percent chance of showers before midnight.  Partly cloudy, with a low around 46. West wind 7 to 10 mph, with gusts as high as 18 mph.

    Low: 46 °F

    Slight Chance
    Showers then
    Partly Cloudy

  • Juneteenth

    Juneteenth: Mostly sunny, with a high near 71. North northwest wind 11 to 15 mph, with gusts as high as 24 mph.

    High: 71 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 44. North wind 5 to 7 mph becoming calm  in the evening.

    Low: 44 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 77. East southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph.

    High: 77 °F

    Mostly Sunny

  • Saturday Night

    Saturday Night: A 40 percent chance of showers and thunderstorms after midnight.  Mostly cloudy, with a low around 51. East southeast wind 13 to 18 mph, with gusts as high as 30 mph.

    Low: 51 °F

    Mostly Cloudy
    then Chance
    Showers

  • Sunday

    Sunday: Showers and possibly a thunderstorm.  High near 70. Southeast wind 13 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 80%.

    High: 70 °F

    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms.  Mostly cloudy, with a low around 47. East southeast wind 8 to 13 mph becoming south southwest after midnight. Winds could gust as high as 22 mph.

    Low: 47 °F

    Chance
    Showers

  • Monday

    Monday: A chance of showers, then showers likely and possibly a thunderstorm after noon.  Mostly cloudy, with a high near 69. West southwest wind 8 to 15 mph, with gusts as high as 25 mph.  Chance of precipitation is 60%.

    High: 69 °F

    Showers
    Likely

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 45. West wind 7 to 15 mph, with gusts as high as 23 mph.

    Low: 45 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Tonight
A 20 percent chance of showers before midnight. Partly cloudy, with a low around 46. West wind 7 to 10 mph, with gusts as high as 18 mph.
Juneteenth
Mostly sunny, with a high near 71. North northwest wind 11 to 15 mph, with gusts as high as 24 mph.
Friday Night
Partly cloudy, with a low around 44. North wind 5 to 7 mph becoming calm in the evening.
Saturday
Mostly sunny, with a high near 77. East southeast wind 5 to 10 mph increasing to 15 to 20 mph in the afternoon. Winds could gust as high as 31 mph.
Saturday Night
A 40 percent chance of showers and thunderstorms after midnight. Mostly cloudy, with a low around 51. East southeast wind 13 to 18 mph, with gusts as high as 30 mph.
Sunday
Showers and possibly a thunderstorm. High near 70. Southeast wind 13 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 80%.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 47. East southeast wind 8 to 13 mph becoming south southwest after midnight. Winds could gust as high as 22 mph.
Monday
A chance of showers, then showers likely and possibly a thunderstorm after noon. Mostly cloudy, with a high near 69. West southwest wind 8 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%.
Monday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 45. West wind 7 to 15 mph, with gusts as high as 23 mph.
Tuesday
A 20 percent chance of showers after noon. Mostly sunny, with a high near 71. Northwest wind 9 to 14 mph, with gusts as high as 23 mph.
Tuesday Night
Mostly clear, with a low around 45. North northwest wind 8 to 13 mph becoming light north after midnight. Winds could gust as high as 21 mph.
Wednesday
Mostly sunny, with a high near 77.
Wednesday Night
Partly cloudy, with a low around 48.
Thursday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 81.
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ABOUT THIS FORECAST

 
Point Forecast:
Sidney MT
 47.71°N 104.19°W (Elev. 1998 ft)
3:21 pm MDT Jun 18, 2026
10pm MDT Jun 18, 2026-6pm MDT Jun 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database