South Mountain, Idaho Weather
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Weather Forecast for South Mountain, Idaho : Owyhee County
Issued: 3:04 pm MDT Sep 13, 2025 Latitude: 42.7521014 Longitude: -116.9234653 View on Google Maps

MouseOver for Detail Forecast
Overnight Sunday Monday Tuesday Wednesday Thursday Friday Saturday
Mostly Cloudy on Overnight 40% chance of thunderstorms on Sunday Sunny on Monday Sunny on Tuesday Sunny on Wednesday Sunny on Thursday Mostly Sunny on Friday 20% chance of rain on Saturday
Low: 51°F High: 58°F High: 58°F High: 64°F High: 69°F High: 66°F High: 62°F High: 61°F
Low: 41°F Low: 43°F Low: 48°F Low: 51°F Low: 49°F Low: 48°F  
Mostly Cloudy Thunderstorms Sunny Sunny Sunny Sunny Mostly Sunny Rain
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Current Conditions at
ROME - (KREO)
63°
Clear
as of 1:52 AM MDST
Rel. Humidity: 39%
Dew Point: 37°F
Pressure: 29.91 in.
Wind Data
9 MPH
160° South
Current Conditions at
MOUNTAIN HOME AFB - (KMUO)
54°
Clear
as of 1:55 AM MDST
Rel. Humidity: 54%
Dew Point: 37°F
Visibility: 8 Miles
Pressure: 29.89 in.
Flight Rule: VFR
Wind Data
5 MPH
060° Northeast
Cloud Level(s): Clear
Current Conditions at
CALDWELL - (KEUL)
59°
Clear
as of 1:56 AM MDST
Rel. Humidity: 62%
Dew Point: 46°F
Visibility: 10 Miles
Pressure: 29.85 in.
Flight Rule: VFR
Wind Data
6 MPH
110° East
Cloud Level(s): Clear
Current Conditions at
ONTARIO - (KONO)
63°
Clear
as of 1:53 AM MDST
Rel. Humidity: 63%
Dew Point: 50°F
Visibility: 10 Miles
Pressure: 29.85 in.
Flight Rule: VFR
Wind Data
5 MPH
070° East
Cloud Level(s): Clear
Mostly Cloudy on Overnight Overnight... Mostly cloudy, with a low around 51. South southeast wind 9 to 11 mph.
40% chance of thunderstorms Sunday Sunday... A slight chance of showers, then a chance of showers and thunderstorms after noon. Partly sunny, with a high near 58. South wind 10 to 14 mph becoming west in the afternoon. Winds could gust as high as 26 mph. Chance of precipitation is 40%.
Mostly Clear on Sunday Night Sunday Night... Mostly clear, with a low around 41. Northwest wind 6 to 14 mph, with gusts as high as 25 mph.
Sunny on Monday Monday... Sunny, with a high near 58. West northwest wind 6 to 10 mph.
Mostly Clear on Monday Night Monday Night... Mostly clear, with a low around 43. North northwest wind 6 to 10 mph becoming east after midnight.
Sunny on Tuesday Tuesday... Sunny, with a high near 64.
Mostly Clear on Tuesday Night Tuesday Night... Mostly clear, with a low around 48.
Sunny on Wednesday Wednesday... Sunny, with a high near 69.
Mostly Clear on Wednesday Night Wednesday Night... Mostly clear, with a low around 51.
Sunny on Thursday Thursday... Sunny, with a high near 66.
Cloudy on Thursday Night Thursday Night... Partly cloudy, with a low around 49.
Mostly Sunny on Friday Friday... Mostly sunny, with a high near 62.
20% chance of rain Friday Night Friday Night... A 20 percent chance of showers. Partly cloudy, with a low around 48.
20% chance of rain Saturday Saturday... A 20 percent chance of showers. Mostly sunny, with a high near 61.
Current Radar Image


Sun Almanac for South Mountain, Idaho
Sunrise: 07:27 AM
Sunset: 7:59 PM
Civil Sunrise:06:59 AM
Civil Sunset: 8:27 PM
Nautical Sunrise: 06:25 AM
Nautical Sunset: 9:01 PM
Astro Sunrise: 05:51 AM
Astro Sunset: 9:35 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.