Iron Mountain, SD Weather Forecast

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Iron Mountain, SD Weather Forecast

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Iron Mountain SD weather  - Clear - 40°F
Clear
40°F
Updated 10:41 pm
Feels Like 42°F
Humidity 46%
Wind WSW 7 mph
Barometer  30.45 in
Dew Point 21°F
Iron Mountain SD weather  - Clear - 4°C
Clear
4°C
Updated 10:41 pm
Feels Like 5°C
Humidity 46%
Wind WSW 11 km/h
Barometer  103.1 kPa
Dew Point -6°C

Iron Mountain Weather Forecast

REST OF TONIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY
Iron Mountain, SD Weather - Rest Of Tonight Clear Iron Mountain, SD Weather - Saturday Sunny Iron Mountain, SD Weather - Saturday Night Mostly Clear Iron Mountain, SD Weather - Sunday Sunny Iron Mountain, SD Weather - Sunday Night Mostly Clear Iron Mountain, SD Weather - Monday Sunny Iron Mountain, SD Weather - Monday Night Clear Iron Mountain, SD Weather - Tuesday Sunny Iron Mountain, SD Weather - Tuesday Night Clear Iron Mountain, SD Weather - Wednesday Mostly Sunny Iron Mountain, SD Weather - Wednesday Night Mostly Clear Iron Mountain, SD Weather - Thursday Clearing
Clear Sunny Mostly Clear Sunny Mostly Clear Sunny Clear Sunny Clear Mostly Sunny Mostly Clear Clearing
Lo: 39°FLo: 4°C Hi: 70°FHi: 21°C
Lo: 45°FLo: 7°C Hi: 60°FHi: 16°C
Lo: 39°FLo: 4°C Hi: 60°FHi: 16°C
Lo: 41°FLo: 5°C Hi: 69°FHi: 21°C
Lo: 49°FLo: 9°C Hi: 69°FHi: 21°C
Lo: 49°FLo: 9°C Hi: 69°FHi: 21°C
POP = Probability of Precipitation.
Weather Outlook Updated: 917 PM MDT Fri Oct 16 2026 Iron Mountain, SD Weather - WeatherWorld.com

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Iron Mountain Forecast Discussion

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Issued: 541 PM MDT Fri Oct 16 2026

Key Messages

  • Above average temperatures return for the weekend.
  • Warm and dry weather expected through early next week.

Discussion

...(This Evening Through Friday) Issued at 105 PM MDT Fri Oct 16 2026

Mild and dry afternoon on tap as upper level ridge builds in the western US. Drier weather and warming temps expected through the weekend as the ridge continues to build. With humidities dropping into the upper teens to 20s tomorrow, elevated fire wx conditions may develop over portions of northeastern ...