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Heavy Rain in the Appalachians and Central Gulf Coast; Heat Continues in the West; Monitoring the Tropics

Heavy to excessive rainfall over the southern Appalachians and portions of the central Gulf Coast may bring areas of flooding today. Hot temperatures are in place through today across much of the western U.S. and New England. Tropical Storm Erin is forecast to become a Major Hurricane this weekend as it moves across the central Atlantic Ocean. Monitor future forecasts for any East Coast impacts. Read More >

Current conditions at

Sidney-Richland (KSDY)

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

Clear

72°F

22°C

Humidity 60%
Wind Speed S 3 MPH
Barometer 30.06 in (1017.95 mb)
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 12 Aug 10:35 AM MDT
Extended Forecast for

Sidney MT

  • Today

    Today: Sunny, with a high near 81. West wind around 6 mph becoming north in the afternoon.

    High: 81 °F

    Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 60. East wind 3 to 6 mph.

    Low: 60 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93. South southeast wind 6 to 10 mph, with gusts as high as 18 mph.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 62. South wind 6 to 9 mph.

    Low: 62 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 84. West southwest wind 6 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.

    High: 84 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 55. Northwest wind 5 to 10 mph becoming light and variable after midnight.

    Low: 55 °F

    Partly Cloudy

  • Friday

    Friday: Mostly sunny, with a high near 79. Light east northeast wind becoming east 5 to 10 mph in the morning.

    High: 79 °F

    Mostly Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. East wind 7 to 10 mph.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Mostly sunny, with a high near 86. Southeast wind 7 to 11 mph, with gusts as high as 21 mph.

    High: 86 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 81. West wind around 6 mph becoming north in the afternoon.
Tonight
Mostly clear, with a low around 60. East wind 3 to 6 mph.
Wednesday
Sunny, with a high near 93. South southeast wind 6 to 10 mph, with gusts as high as 18 mph.
Wednesday Night
Mostly clear, with a low around 62. South wind 6 to 9 mph.
Thursday
Sunny, with a high near 84. West southwest wind 6 to 11 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph.
Thursday Night
Partly cloudy, with a low around 55. Northwest wind 5 to 10 mph becoming light and variable after midnight.
Friday
Mostly sunny, with a high near 79. Light east northeast wind becoming east 5 to 10 mph in the morning.
Friday Night
Partly cloudy, with a low around 60. East wind 7 to 10 mph.
Saturday
Mostly sunny, with a high near 86. Southeast wind 7 to 11 mph, with gusts as high as 21 mph.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63. East southeast wind 6 to 11 mph, with gusts as high as 20 mph.
Sunday
A 20 percent chance of showers. Mostly sunny, with a high near 86. Southeast wind 6 to 10 mph.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 62.
Monday
Mostly sunny, with a high near 87.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sidney MT
 47.72°N 104.16°W (Elev. 1962 ft)
Last Update:
9:15 am MDT Aug 12, 2025
Forecast Valid:
10am MDT Aug 12, 2025-6pm MDT Aug 18, 2025
 
Forecast Discussion
 
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Additional Resources

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