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

Excessive Rainfall Possible This Weekend; October Heat Wave in California

A slow moving front will be the focus area for heavy to excessive rainfall and a threat for flash/urban flooding across the northern Gulf Coast and Southeast U.S. through this weekend. Abnormally hot, potentially record-breaking, temperatures will impact southern California and stretch north toward the Bay Area and Central Valley into next week. Read More >

Current conditions at

Sidney-Richland (KSDY)

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

Clear

73°F

23°C

Humidity 32%
Wind Speed S 10 MPH
Barometer 29.95 in (1014.22 mb)
Dewpoint 42°F (6°C)
Visibility 10.00 mi
Last update 02 Oct 02:56 PM MDT
Extended Forecast for

Sidney MT

  • Tonight

    Tonight: Mostly cloudy, with a low around 49. Light and variable wind becoming west 5 to 8 mph after midnight.

    Low: 49 °F

    Mostly Cloudy

  • Saturday

    Saturday: Mostly cloudy through mid morning, then gradual clearing, with a high near 68. Northwest wind 9 to 16 mph, with gusts as high as 28 mph.

    High: 68 °F

    Becoming
    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 37. Northwest wind around 6 mph becoming calm in the evening.

    Low: 37 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 70. Calm wind becoming east southeast 5 to 8 mph in the afternoon.

    High: 70 °F

    Sunny

  • Sunday Night

    Sunday Night: Clear, with a low around 46. East wind 7 to 10 mph, with gusts as high as 20 mph.

    Low: 46 °F

    Clear

  • Monday

    Monday: Sunny, with a high near 82. South southeast wind 8 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph.

    High: 82 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 51. West southwest wind 5 to 7 mph.

    Low: 51 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 77. West northwest wind 5 to 11 mph, with gusts as high as 22 mph.

    High: 77 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47. North northwest wind around 6 mph becoming calm in the evening.

    Low: 47 °F

    Mostly Clear

Detailed Forecast

Tonight
Mostly cloudy, with a low around 49. Light and variable wind becoming west 5 to 8 mph after midnight.
Saturday
Mostly cloudy through mid morning, then gradual clearing, with a high near 68. Northwest wind 9 to 16 mph, with gusts as high as 28 mph.
Saturday Night
Partly cloudy, with a low around 37. Northwest wind around 6 mph becoming calm in the evening.
Sunday
Sunny, with a high near 70. Calm wind becoming east southeast 5 to 8 mph in the afternoon.
Sunday Night
Clear, with a low around 46. East wind 7 to 10 mph, with gusts as high as 20 mph.
Monday
Sunny, with a high near 82. South southeast wind 8 to 11 mph becoming southwest in the afternoon. Winds could gust as high as 22 mph.
Monday Night
Mostly clear, with a low around 51. West southwest wind 5 to 7 mph.
Tuesday
Sunny, with a high near 77. West northwest wind 5 to 11 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 47. North northwest wind around 6 mph becoming calm in the evening.
Wednesday
Mostly sunny, with a high near 74. Calm wind becoming west northwest 5 to 8 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 46. Northwest wind around 5 mph becoming calm in the evening.
Thursday
Mostly sunny, with a high near 72.
Thursday Night
Partly cloudy, with a low around 46.
Friday
Mostly sunny, with a high near 76.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Sidney MT
 47.72°N 104.16°W (Elev. 1962 ft)
Last Update:
12:40 pm MDT Oct 2, 2026
Forecast Valid:
3pm MDT Oct 2, 2026-6pm MDT Oct 9, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation