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Opal Lake, ID Weather Forecast

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Opal Lake, ID Weather Forecast

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Opal Lake ID weather - Clear - 51°F
Clear
51°F
Updated 12:30 am
Feels Like 40°F
Humidity 71%
Wind N 0 mph
Barometer  30.08 in
Dew Point 42°F
Opal Lake ID weather - Clear - 11°C
Clear
11°C
Updated 12:30 am
Feels Like 4°C
Humidity 71%
Wind N 0 km/h
Barometer  101.9 kPa
Dew Point 6°C
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Opal Lake Weather Forecast

TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY
Opal Lake, ID Weather - Tonight Mostly Clear Opal Lake, ID Weather - Thursday Partly Cloudy Opal Lake, ID Weather - Thursday Night Mostly Clear Opal Lake, ID Weather - Friday Mostly Sunny Opal Lake, ID Weather - Friday Night Partly Cloudy Opal Lake, ID Weather - Saturday Mostly Sunny Opal Lake, ID Weather - Saturday Night Mostly Clear Opal Lake, ID Weather - Sunday Mostly Sunny Opal Lake, ID Weather - Sunday Night Mostly Clear Opal Lake, ID Weather - Monday Partly Cloudy Opal Lake, ID Weather - Monday Night Partly Cloudy Opal Lake, ID Weather - Tuesday Mostly Sunny
Mostly Clear Partly Cloudy Mostly Clear Mostly Sunny Partly Cloudy Mostly Sunny Mostly Clear Mostly Sunny Mostly Clear Partly Cloudy Partly Cloudy Mostly Sunny
Lo: 45°FLo: 7°C Hi: 66°FHi: 19°C
 Lo: 46°FLo: 8°C Hi: 75°FHi: 24°C
 Lo: 46°FLo: 8°C Hi: 75°FHi: 24°C
 Lo: 46°FLo: 8°C Hi: 76°FHi: 24°C
 Lo: 50°FLo: 10°C Hi: 75°FHi: 24°C
 Lo: 46°FLo: 8°C Hi: 70°FHi: 21°C
POP = Probability of Precipitation.
Weather Outlook Updated: 732 PM MDT Wed Sep 30 2026 Opal Lake, ID Weather - WeatherWorld.com

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Issued: 646 PM MDT Wed Sep 30 2026

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KEY MESSAGES:
  • Valley fog tonight into Thursday morning for Northwest Montana.
  • Warming and drying trend Friday through Sunday.
  • Increasing westerly winds and potential Monday afternoon storms as a weak disturbance flattens the ridge.
  • Strong high pressure re-establishes late next week, maintaining a prolonged warm and dry pattern.

Tonight-Thursday: Over the past 24 hours, a weak atmospheric river brought widespread precipitation to areas north of the Highway 12 corridor, with a band fro...