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South Mountain, Idaho Weather Forecast
South Mountain, Idaho Weather
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Weather Forecast for South Mountain, Idaho : Owyhee County
Issued: 3:04 am MDT Oct 31, 2025 Latitude: 42.7521014 Longitude: -116.9234653 View on Google Maps

MouseOver for Detail Forecast
Today Tonight Saturday Sunday Monday Tuesday Wednesday Thursday
Mostly Sunny on Today Mostly Cloudy on Tonight Sunny on Saturday Partly Sunny on Sunday Mostly Sunny on Monday 20% chance of rain & snow on Tuesday 40% chance of rain on Wednesday 50% chance of snow on Thursday
High: 50°F Low: 40°F High: 56°F High: 45°F High: 53°F High: 47°F High: 50°F High: 41°F
Low: 41°F Low: 36°F Low: 42°F Low: 41°F Low: 35°F  
Mostly Sunny Mostly Cloudy Sunny Partly Sunny Mostly Sunny Rain & Snow Rain Snow
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Current Conditions at
ROME - (KREO)
28°
Clear
as of 8:52 AM MDST
Rel. Humidity: 92%
Dew Point: 27°F
Pressure: 30.19 in.
Wind Data
8 MPH
150° Southeast
Current Conditions at
MOUNTAIN HOME AFB - (KMUO)
30°
Mostly Clear
Mist
as of 8:55 AM MDST
Rel. Humidity: 86%
Dew Point: 27°F
Visibility: 5 Miles
Pressure: 30.23 in.
Flight Rule: MVFR
Wind Data
6 MPH
0° North
Cloud Level(s): Few at 10000ft
Current Conditions at
CALDWELL - (KEUL)
32°
Clear
as of 8:56 AM MDST
Rel. Humidity: 92%
Dew Point: 30°F
Visibility: 9 Miles
Pressure: 30.24 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Current Conditions at
ONTARIO - (KONO)
27°
Clear
as of 8:53 AM MDST
Rel. Humidity: 92%
Dew Point: 25°F
Visibility: 10 Miles
Pressure: 30.26 in.
Flight Rule: VFR
Wind Data
Calm
Cloud Level(s): Clear
Mostly Sunny on Today Today... Mostly sunny, with a high near 50. West wind 3 to 6 mph.

Mostly Cloudy on Tonight Tonight... Mostly cloudy, with a low around 40. Light and variable wind becoming south 5 to 9 mph in the evening.

Sunny on Saturday Saturday... Sunny, with a high near 56. South southwest wind 8 to 10 mph.

Mostly Clear on Saturday Night Saturday Night... Mostly clear, with a low around 41. South southwest wind 8 to 10 mph.

Partly Sunny on Sunday Sunday... Partly sunny, with a high near 45. South southwest wind 7 to 9 mph becoming north northwest in the afternoon.

Cloudy on Sunday Night Sunday Night... Partly cloudy, with a low around 36.

Mostly Sunny on Monday Monday... Mostly sunny, with a high near 53.

Mostly Cloudy on Monday Night Monday Night... Mostly cloudy, with a low around 42.

20% chance of rain & snow Tuesday Tuesday... A slight chance of rain showers before 9am, then a slight chance of rain and snow showers between 9am and noon, then a slight chance of rain showers after noon. Snow level 8200 feet. Mostly cloudy, with a high near 47. Chance of precipitation is 20%.

10% chance of rain Tuesday Night Tuesday Night... A 10 percent chance of showers before midnight. Mostly cloudy, with a low around 41.

40% chance of rain Wednesday Wednesday... A 40 percent chance of showers. Mostly cloudy, with a high near 50.

50% chance of rain & snow Wednesday Night Wednesday Night... A chance of rain and snow showers. Snow level 8500 feet lowering to 7200 feet after midnight . Mostly cloudy, with a low around 35. Chance of precipitation is 50%.

50% chance of snow Thursday Thursday... A 50 percent chance of snow showers. Mostly cloudy, with a high near 41.

Current Radar Image


Sun Almanac for South Mountain, Idaho
Sunrise: 08:21 AM
Sunset: 6:41 PM
Civil Sunrise:07:52 AM
Civil Sunset: 7:11 PM
Nautical Sunrise: 07:19 AM
Nautical Sunset: 7:44 PM
Astro Sunrise: 06:46 AM
Astro Sunset: 8:17 PM
Any use of the information on this page is at your own risk. This information should not be relied upon in life-threatening situations, potential financial loss situations or in lieu of any officially disseminated information. Visit the National Weather Service for official information.