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May, ID Weather Forecast

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May, ID Weather Forecast

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May ID weather - Mostly Cloudy - 55°F
Mostly Cloudy
55°F
Updated 5:14 pm
Feels Like 43°F
Humidity 29%
Wind N 6 mph
Barometer  29.97 in
Dew Point 24°F
May ID weather - Mostly Cloudy - 13°C
Mostly Cloudy
13°C
Updated 5:14 pm
Feels Like 6°C
Humidity 29%
Wind N 10 km/h
Barometer  101.4 kPa
Dew Point -4°C
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May Weather Forecast

TONIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY
May, ID Weather - Tonight Mostly Clear May, ID Weather - Thursday Partly Cloudy May, ID Weather - Thursday Night Mostly Cloudy May, ID Weather - Friday Rain And Snow May, ID Weather - Friday Night Rain And Snow May, ID Weather - Saturday Rain And Snow May, ID Weather - Saturday Night Rain And Snow May, ID Weather - Sunday Rain And Snow May, ID Weather - Sunday Night Rain And Snow May, ID Weather - Monday Chance Of Snow May, ID Weather - Monday Night Partly Cloudy May, ID Weather - Tuesday Mostly Cloudy
Mostly Clear Partly Cloudy Mostly Cloudy Rain and Snow Rain and Snow Rain and Snow Rain and Snow Rain and Snow Rain and Snow Chance of Snow Partly Cloudy Mostly Cloudy
Lo: 25°FLo: -4°C Hi: 46°FHi: 8°C
 Lo: 30°FLo: -1°C Hi: 46°FHi: 8°C
 Lo: 30°FLo: -1°C Hi: 46°FHi: 8°C
 Lo: 35°FLo: 2°C Hi: 40°FHi: 4°C
 Lo: 26°FLo: -3°C Hi: 40°FHi: 4°C
 Lo: 26°FLo: -3°C Hi: 46°FHi: 8°C
POP: 20% POP: 30% POP: 40% POP: 80% POP: 90% POP: 50% POP: 20%
POP = Probability of Precipitation.
Weather Outlook Updated: 124 PM MDT Wed Oct 28 2026 May, ID Weather - WeatherWorld.com

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Issued: 1239 PM MDT Wed Oct 28 2026

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KEY MESSAGES:
  • Minor snow impacts possible tonight on Lolo, Lookout and Marias Passes
  • Anticipate cooler temperatures and periods of valley rain and mountain snow through the weekend.

A low pressure system digging into the Pacific northwest coastline will continue to push a fetch of moisture into western Montana and north central Idaho this afternoon into tomorrow morning. The main plume of moisture will generally focus north of Interstate 90 tonight, with areas sough of Interstate 90 ...