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

Heat in the Central U.S.; Heavy Rain Possible for South Texas; Monitoring Erin Tropical Impacts

Hot temperatures are forecast over the Plains and into the lower Mississippi River Valley Friday where Heat Advisories have been issued. Heavy rain from a disturbance in the western Gulf could bring flooding to south Texas. Erin could bring tropical storm conditions and heavy rain to Puerto Rico and the USVI this weekend with dangerous surf and rip currents impacting the western Atlantic Basin. Read More >

Current conditions at

Sidney-Richland (KSDY)

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

Partly Cloudy

63°F

17°C

Humidity 72%
Wind Speed NNW 6 MPH
Barometer 29.98 in (1015.24 mb)
Dewpoint 54°F (12°C)
Visibility 10.00 mi
Last update 15 Aug 02:05 AM MDT
Extended Forecast for

8 Miles SSW Sidney MT

  • Overnight

    Overnight: A slight chance of showers before 3am, then a slight chance of showers and thunderstorms between 3am and 5am. Mostly cloudy, with a low around 57. North northeast wind around 6 mph. Chance of precipitation is 20%.

    Low: 57 °F

    Slight Chance
    T-storms

  • Friday

    Friday: A slight chance of showers and thunderstorms between 7am and 11am. Mostly sunny, with a high near 82. East wind 7 to 11 mph. Chance of precipitation is 20%.

    High: 82 °F

    Slight Chance
    T-storms then
    Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 60. East wind 9 to 14 mph, with gusts as high as 21 mph.

    Low: 60 °F

    Partly Cloudy

  • Saturday

    Saturday: Sunny, with a high near 88. East southeast wind 8 to 15 mph, with gusts as high as 23 mph.

    High: 88 °F

    Sunny

  • Saturday Night

    Saturday Night: A chance of showers and thunderstorms before 3am, then a slight chance of showers. Mostly cloudy, with a low around 63. Southeast wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.

    Low: 63 °F

    Chance
    T-storms

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 88. East southeast wind 7 to 9 mph.

    High: 88 °F

    Partly Sunny
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 62. East southeast wind 5 to 9 mph becoming light south southeast after midnight. Chance of precipitation is 40%.

    Low: 62 °F

    Chance
    T-storms then
    Slight Chance
    Showers

  • Monday

    Monday: Mostly sunny, with a high near 90. South southeast wind 3 to 6 mph.

    High: 90 °F

    Mostly Sunny

  • Monday Night

    Monday Night: A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 63. East wind 3 to 6 mph.

    Low: 63 °F

    Slight Chance
    T-storms then
    Partly Cloudy

Detailed Forecast

Overnight
A slight chance of showers before 3am, then a slight chance of showers and thunderstorms between 3am and 5am. Mostly cloudy, with a low around 57. North northeast wind around 6 mph. Chance of precipitation is 20%.
Friday
A slight chance of showers and thunderstorms between 7am and 11am. Mostly sunny, with a high near 82. East wind 7 to 11 mph. Chance of precipitation is 20%.
Friday Night
Partly cloudy, with a low around 60. East wind 9 to 14 mph, with gusts as high as 21 mph.
Saturday
Sunny, with a high near 88. East southeast wind 8 to 15 mph, with gusts as high as 23 mph.
Saturday Night
A chance of showers and thunderstorms before 3am, then a slight chance of showers. Mostly cloudy, with a low around 63. Southeast wind 9 to 14 mph, with gusts as high as 21 mph. Chance of precipitation is 40%.
Sunday
A 30 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 88. East southeast wind 7 to 9 mph.
Sunday Night
A chance of showers and thunderstorms before midnight, then a slight chance of showers. Mostly cloudy, with a low around 62. East southeast wind 5 to 9 mph becoming light south southeast after midnight. Chance of precipitation is 40%.
Monday
Mostly sunny, with a high near 90. South southeast wind 3 to 6 mph.
Monday Night
A 20 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 63. East wind 3 to 6 mph.
Tuesday
Sunny, with a high near 93. Calm wind becoming east southeast 5 to 9 mph in the morning.
Tuesday Night
Mostly clear, with a low around 64. Southeast wind 6 to 9 mph.
Wednesday
Sunny, with a high near 93.
Wednesday Night
Partly cloudy, with a low around 62.
Thursday
Mostly sunny, with a high near 86.
Basemap Options
Click map to change the forecast location
Loading map...
Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
8 Miles SSW Sidney MT
 47.61°N 104.24°W (Elev. 1972 ft)
Last Update:
2:35 pm MDT Aug 14, 2025
Forecast Valid:
2am MDT Aug 15, 2025-6pm MDT Aug 21, 2025
 
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