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

Flooding Risks from Tropical Moisture Across the Southeast and Southwest

Tropical moisture from Isaias and Rachel will impact portions of the Southeast and Southwest this weekend. Flash flooding, strong winds and even a threat for severe thunderstorms and tornadoes are possible. Meanwhile, strong winds and dry fuels are raising fire weather concerns across the central Great Basin and western High Plains. Across the northern Rockies, first winter storm of the season. Read More >

Current conditions at

Sidney-Richland (KSDY)

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

Clear

59°F

15°C

Humidity 45%
Wind Speed N 0 MPH
Barometer 29.58 in (1001.69 mb)
Dewpoint 38°F (3°C)
Visibility 10.00 mi
Last update 10 Oct 09:56 AM MDT
Extended Forecast for

Sidney MT

  • Today

    Today: Partly sunny, with a high near 71. North northwest wind 9 to 13 mph, with gusts as high as 23 mph.

    High: 71 °F

    Partly Sunny

  • Tonight

    Tonight: A chance of rain before 3am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 36. North wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.

    Low: 36 °F

    Mostly Cloudy
    then Chance
    Rain

  • Sunday

    Sunday: Rain, mainly after 9am. High near 48. North northeast wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.

    High: 48 °F

    Rain

  • Sunday Night

    Sunday Night: Rain. Low around 32. Northeast wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.

    Low: 32 °F

    Rain

  • Columbus Day

    Columbus Day: Rain. High near 44. Northeast wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%.

    High: 44 °F

    Rain

  • Monday Night

    Monday Night: A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 30. North wind around 5 mph becoming calm in the evening.

    Low: 30 °F

    Slight Chance
    Rain then
    Mostly Cloudy

  • Tuesday

    Tuesday: Partly sunny, with a high near 55. Calm wind becoming south around 6 mph in the afternoon.

    High: 55 °F

    Partly Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 33. Calm wind.

    Low: 33 °F

    Partly Cloudy

  • Wednesday

    Wednesday: A 20 percent chance of rain after noon. Partly sunny, with a high near 60. Calm wind becoming south southeast around 6 mph in the afternoon.

    High: 60 °F

    Partly Sunny
    then Slight
    Chance Rain

Detailed Forecast

Today
Partly sunny, with a high near 71. North northwest wind 9 to 13 mph, with gusts as high as 23 mph.
Tonight
A chance of rain before 3am, then a slight chance of rain after 4am. Mostly cloudy, with a low around 36. North wind 11 to 14 mph, with gusts as high as 24 mph. Chance of precipitation is 30%.
Sunday
Rain, mainly after 9am. High near 48. North northeast wind around 13 mph, with gusts as high as 23 mph. Chance of precipitation is 90%.
Sunday Night
Rain. Low around 32. Northeast wind 9 to 13 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
Columbus Day
Rain. High near 44. Northeast wind 8 to 10 mph, with gusts as high as 18 mph. Chance of precipitation is 90%.
Monday Night
A 20 percent chance of rain before midnight. Mostly cloudy, with a low around 30. North wind around 5 mph becoming calm in the evening.
Tuesday
Partly sunny, with a high near 55. Calm wind becoming south around 6 mph in the afternoon.
Tuesday Night
Partly cloudy, with a low around 33. Calm wind.
Wednesday
A 20 percent chance of rain after noon. Partly sunny, with a high near 60. Calm wind becoming south southeast around 6 mph in the afternoon.
Wednesday Night
A 20 percent chance of rain. Mostly cloudy, with a low around 36. East southeast wind 5 to 7 mph becoming west southwest after midnight.
Thursday
A 30 percent chance of rain. Partly sunny, with a high near 59. Northwest wind 9 to 16 mph, with gusts as high as 29 mph.
Thursday Night
A slight chance of rain and snow. Partly cloudy, with a low around 31.
Friday
Mostly sunny, with a high near 58.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Sidney MT
 47.72°N 104.16°W (Elev. 1962 ft)
Last Update:
4:26 am MDT Oct 10, 2026
Forecast Valid:
10am MDT Oct 10, 2026-6pm MDT Oct 16, 2026
 
Forecast Discussion
 
Get as KML Get as XML

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