Erin Strengthens to a Hurricane; Heavy Rainfall Possible in Puerto Rico and the Virgin Islands, the Upper Midwest, South Texas

Hurricane Erin may bring isolated flash and urban flooding, landslides or mudslides, and possible tropical storm conditions to Puerto Rico and the U.S. Virgin Islands this weekend. Scattered thunderstorms and heavy rainfall may bring areas of flooding this weekend over the Upper Midwest. A tropical disturbance will bring locally heavy rain and mainly urban flash flooding to far southern Texas. Read More >

Current conditions at

Sidney-Richland (KSDY)

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

Mostly Cloudy

70°F

21°C

Humidity 94%
Wind Speed E 8 MPH
Barometer 29.9 in (1012.53 mb)
Dewpoint 68°F (20°C)
Visibility 10.00 mi
Last update 17 Aug 05:35 AM MDT
Extended Forecast for

8 Miles NW Sidney MT

  • Overnight

    Overnight: A 30 percent chance of showers.  Mostly cloudy, with a low around 62. East wind around 8 mph.

    Low: 62 °F

    Chance
    Showers

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm.  Mostly sunny, with a high near 86. Southeast wind 6 to 8 mph.

    High: 86 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 20 percent chance of showers and thunderstorms, mainly between 3am and 4am.  Increasing clouds, with a low around 61. East northeast wind around 6 mph becoming calm  in the evening.

    Low: 61 °F

    Slight Chance
    T-storms

  • Monday

    Monday: A slight chance of showers, with thunderstorms also possible after noon.  Mostly sunny, with a high near 87. Calm wind becoming south southeast 5 to 7 mph in the morning.  Chance of precipitation is 20%.

    High: 87 °F

    Slight Chance
    Showers then
    Slight Chance
    T-storms

  • Monday Night

    Monday Night: Mostly clear, with a low around 62. East southeast wind 5 to 7 mph.

    Low: 62 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Southeast wind 3 to 7 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 66. Southeast wind around 8 mph.

    Low: 66 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny and hot, with a high near 99. South southeast wind 7 to 13 mph, with gusts as high as 21 mph.

    High: 99 °F

    Hot

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 65. South wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 18 mph.

    Low: 65 °F

    Partly Cloudy

Detailed Forecast

Overnight
A 30 percent chance of showers. Mostly cloudy, with a low around 62. East wind around 8 mph.
Sunday
A 30 percent chance of showers and thunderstorms, mainly between 4pm and 5pm. Mostly sunny, with a high near 86. Southeast wind 6 to 8 mph.
Sunday Night
A 20 percent chance of showers and thunderstorms, mainly between 3am and 4am. Increasing clouds, with a low around 61. East northeast wind around 6 mph becoming calm in the evening.
Monday
A slight chance of showers, with thunderstorms also possible after noon. Mostly sunny, with a high near 87. Calm wind becoming south southeast 5 to 7 mph in the morning. Chance of precipitation is 20%.
Monday Night
Mostly clear, with a low around 62. East southeast wind 5 to 7 mph.
Tuesday
Sunny, with a high near 94. Southeast wind 3 to 7 mph.
Tuesday Night
Mostly clear, with a low around 66. Southeast wind around 8 mph.
Wednesday
Sunny and hot, with a high near 99. South southeast wind 7 to 13 mph, with gusts as high as 21 mph.
Wednesday Night
Partly cloudy, with a low around 65. South wind 7 to 10 mph becoming west after midnight. Winds could gust as high as 18 mph.
Thursday
Sunny, with a high near 83. North northwest wind 7 to 13 mph, with gusts as high as 20 mph.
Thursday Night
Mostly clear, with a low around 54. North northwest wind 6 to 11 mph.
Friday
Sunny, with a high near 76.
Friday Night
Mostly clear, with a low around 51.
Saturday
Sunny, with a high near 75.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles NW Sidney MT
 47.77°N 104.29°W (Elev. 2264 ft)
2:28 am MDT Aug 17, 2025
5am MDT Aug 17, 2025-6pm MDT Aug 23, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database