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

Severe Thunderstorms for Mid-Atlantic and Northeast; Typhoon Approaching Guam

A cold front will sweep eastward today accompanied by strong to severe thunderstorms for the mid-Atlantic and Northeast today. In the wake of this cold front, autumn like temperatures and gusty winds from the Plains, Mississippi Valley, Great Lakes to most of the eastern seaboard. Fire weather conditions for lower Mississippi Valley into portions of California. For Guam, a typhoon is approaching. Read More >

Current conditions at

Sidney-Richland (KSDY)

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

Clear

40°F

4°C

Humidity 64%
Wind Speed SSW 10 MPH
Barometer 30.13 in (1020.32 mb)
Dewpoint 29°F (-2°C)
Visibility 10.00 mi
Wind Chill34°F (1°C)
Last update 16 Oct 11:56 PM MDT
Extended Forecast for

Sidney MT

  • Overnight

    Overnight: Mostly clear, with a low around 37. South southwest wind around 8 mph.

    Low: 37 °F

    Mostly Clear

  • Saturday

    Saturday: Sunny, with a high near 75. South southwest wind 8 to 13 mph, with gusts as high as 23 mph.

    High: 75 °F

    Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 43. Southwest wind around 8 mph becoming west northwest after midnight.

    Low: 43 °F

    Partly Cloudy

  • Sunday

    Sunday: Sunny, with a high near 61. West northwest wind 3 to 5 mph.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 35. Light and variable wind.

    Low: 35 °F

    Mostly Clear

  • Monday

    Monday: Sunny, with a high near 66. Southeast wind 5 to 15 mph, with gusts as high as 26 mph.

    High: 66 °F

    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 40. Southeast wind 7 to 13 mph, with gusts as high as 26 mph.

    Low: 40 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 69. Southeast wind 7 to 10 mph, with gusts as high as 21 mph.

    High: 69 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 41. Southeast wind around 5 mph becoming light and variable after midnight.

    Low: 41 °F

    Partly Cloudy

Detailed Forecast

Overnight
Mostly clear, with a low around 37. South southwest wind around 8 mph.
Saturday
Sunny, with a high near 75. South southwest wind 8 to 13 mph, with gusts as high as 23 mph.
Saturday Night
Partly cloudy, with a low around 43. Southwest wind around 8 mph becoming west northwest after midnight.
Sunday
Sunny, with a high near 61. West northwest wind 3 to 5 mph.
Sunday Night
Mostly clear, with a low around 35. Light and variable wind.
Monday
Sunny, with a high near 66. Southeast wind 5 to 15 mph, with gusts as high as 26 mph.
Monday Night
Mostly clear, with a low around 40. Southeast wind 7 to 13 mph, with gusts as high as 26 mph.
Tuesday
Sunny, with a high near 69. Southeast wind 7 to 10 mph, with gusts as high as 21 mph.
Tuesday Night
Partly cloudy, with a low around 41. Southeast wind around 5 mph becoming light and variable after midnight.
Wednesday
Mostly sunny, with a high near 63. North northwest wind 3 to 6 mph.
Wednesday Night
Mostly clear, with a low around 40. Light and variable wind becoming east southeast around 5 mph after midnight.
Thursday
Mostly sunny, with a high near 69.
Thursday Night
A chance of rain. Partly cloudy, with a low around 45.
Friday
A chance of rain. Mostly cloudy, with a high near 63.
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 104.13°W (Elev. 1939 ft)
Last Update:
3:50 pm MDT Oct 16, 2026
Forecast Valid:
12am MDT Oct 17, 2026-6pm MDT Oct 23, 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