Weather Alert
Sidney Weather Warning NWS WEATHER ALERT FOR THE SIDNEY, MT AREA - HIGH WIND WARNING Issued: 931 AM MDT Mon Sep 14 2026 Sidney Weather Warning

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Sidney, MT Weather Forecast

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Sidney, MT Weather Forecast

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Sidney MT weather - Partly Cloudy - 60°F
Partly Cloudy
60°F
Updated 12:17 pm
Feels Like 40°F
Humidity 59%
Wind W 24 mph
Barometer  29.65 in
Dew Point 46°F
Sidney MT weather - Partly Cloudy - 16°C
Partly Cloudy
16°C
Updated 12:17 pm
Feels Like 5°C
Humidity 59%
Wind W 39 km/h
Barometer  100.4 kPa
Dew Point 8°C
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Sidney Weather Forecast

REST OF TODAY TONIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT
Sidney, MT Weather - Rest Of Today Chance Of Showers Sidney, MT Weather - Tonight Chance Of Showers Sidney, MT Weather - Tuesday Mostly Sunny Sidney, MT Weather - Tuesday Night Partly Cloudy Sidney, MT Weather - Wednesday Mostly Cloudy Sidney, MT Weather - Wednesday Night Mostly Clear Sidney, MT Weather - Thursday Mostly Sunny Sidney, MT Weather - Thursday Night Chance Of Showers Sidney, MT Weather - Friday Chance Of Showers Sidney, MT Weather - Friday Night Chance Of T-Storm Sidney, MT Weather - Saturday Chance Of Showers Sidney, MT Weather - Saturday Night Chance Of T-Storm
Chance of Showers Chance of Showers Mostly Sunny Partly Cloudy Mostly Cloudy Mostly Clear Mostly Sunny Chance of Showers Chance of Showers Chance of T-Storm Chance of Showers Chance of T-Storm
Hi: 69°FHi: 21°C
 Lo: 41°FLo: 5°C Hi: 69°FHi: 21°C
 Lo: 45°FLo: 7°C Hi: 71°FHi: 22°C
 Lo: 41°FLo: 5°C Hi: 79°FHi: 26°C
 Lo: 50°FLo: 10°C Hi: 79°FHi: 26°C
 Lo: 49°FLo: 9°C Hi: 71°FHi: 22°C
 Lo: 49°FLo: 9°C
POP: 40% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 941 AM MDT Mon Sep 14 2026 Sidney, MT Weather - WeatherWorld.com

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Issued: 1256 AM MDT Mon Sep 14 2026

Key Messages

  • Accumulating rain showers and embedded thunderstorms at times going through 9 PM this evening beside low amounts in Petroleum and southwest Phillips counties.
  • Winds will reach Lake Wind Advisory Criteria today. Wave heights will have the potential to reach 4 to 5 ft with localized areas to 6 feet on the widest parts of Fort Peck Lake.
  • Slight chances for rain showers are possible Tuesday night and again Thursday night into the weekend.

Discussion

... A low pressure system is on its way ...