J B, MT Weather Forecast

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J B, MT Weather Forecast

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J B MT weather  - Clear - 71°F
Clear
71°F
Updated 4:58 pm
Feels Like 55°F
Humidity 37%
Wind ESE 13 mph
Barometer  29.91 in
Dew Point 44°F
J B MT weather  - Clear - 22°C
Clear
22°C
Updated 4:58 pm
Feels Like 13°C
Humidity 37%
Wind ESE 21 km/h
Barometer  101.2 kPa
Dew Point 7°C

J B Weather Forecast

TONIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY
J B, MT Weather - Tonight Chance Of T-Storm J B, MT Weather - Monday Chance Of T-Storm J B, MT Weather - Monday Night Windy J B, MT Weather - Tuesday Mostly Sunny J B, MT Weather - Tuesday Night Mostly Cloudy J B, MT Weather - Wednesday Mostly Sunny J B, MT Weather - Wednesday Night Mostly Clear J B, MT Weather - Thursday Mostly Clear J B, MT Weather - Thursday Night Chance Of Showers J B, MT Weather - Friday Chance Of Showers J B, MT Weather - Friday Night Chance Of Showers J B, MT Weather - Saturday Chance Of Showers
Chance of T-Storm Chance of T-Storm Windy Mostly Sunny Mostly Cloudy Mostly Sunny Mostly Clear Mostly Clear Chance of Showers Chance of Showers Chance of Showers Chance of Showers
Lo: 49°FLo: 9°C Hi: 65°FHi: 18°C
Lo: 41°FLo: 5°C Hi: 69°FHi: 21°C
Lo: 45°FLo: 7°C Hi: 70°FHi: 21°C
Hi: 79°FHi: 26°C
Lo: 41°FLo: 5°C
Hi: 79°FHi: 26°C
Lo: 41°FLo: 5°C
Lo: 49°FLo: 9°C Hi: 75°FHi: 24°C
Lo: 49°FLo: 9°C Hi: 75°FHi: 24°C
POP: 70% POP: 90%
POP = Probability of Precipitation.
Weather Outlook Updated: 357 PM MDT Sun Sep 13 2026 J B, MT Weather - WeatherWorld.com

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Issued: 258 PM MDT Sun Sep 13 2026

Key Messages

  • Likely scattered rain showers and embedded thunderstorms beginning around midnight and lasting through tomorrow evening.
  • Winds will reach Lake Wind Advisory Criteria today and tomorrow. Wave heights will have the potential to reach 4 to 5 ft tomorrow afternoon.
  • Slight chances for rain showers are possible Tuesday night into Wednesday morning. Confidence in rain amounts is low.

Discussion

... Synoptic Setup: A weak ridge is over the western Great Plains and a closed upper- level low has...