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Mount Vernon, SD Weather Conditions

Updated: Mon Mar 16th 2026 3:15 AM CDT

Clear

2^°F -17^°C

Feels Like -16^°F / -27^°C

Mount Vernon, SD weather condition is Clear and 2°F.

Today's Weather in Mount Vernon,SD

The current weather in Mount Vernon SD as of 3:15 AM CDT on Mon Mar 16th 2026, has a sky condition of Clear with the visibility of 9 mile(s). It is 2 degrees fahrenheit but feels like -16 degrees. The barometric pressure is 30.33 - measured by inches of mercury - and is falling since its last observation. The humidity is 75 percent that's rising since the last report, with a dew point of -3 degrees fahrenheit which is falling. Wind direction is from the North-Northwest at 13 miles per hour, gusting at 22.1 miles per hour. Sunrise is at 7:43 AM and Sunset is at 7:41 PM. The moon phase is a Waning Crescent moon rising at 6:42 AM. Thank you for listening to the weather report from LocalConditions.com!

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Sun & Moon

Sun

Sunrise: 7:43 AM

Sunset: 7:41 PM

As of:

Moon

Moonrise: 6:42 AM

Moonset: 5:13 PM

Phase: Waning Crescent Moon

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Radar Alerts Next 48 Hours Traffic

Hourly Forecast - Next 8 hours

Next 5 Days...

Overcast

Overcast with a high of 48°F and a low of 13°F. Winds will be moderate, blowing around 18mph. The humidity will be on the higher side, reaching around 77%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 48° \| Lo 13°	77%	0%	0%	17.9 mph

Overcast

Overcast with a high of 60°F and a low of 37°F. Winds will be moderate, blowing around 12mph. Expect high humidity with levels above 80% to 89%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 60° \| Lo 37°	89%	0%	0%	11.4 mph

Sunny

Sunny with a high of 71°F and a low of 43°F. Winds will be light at 10mph at times. The humidity will be on the higher side, reaching around 64%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 71° \| Lo 43°	64%	0%	0%	9.2 mph

Sunny

Sunny with a high of 76°F and a low of 52°F. Winds will be moderate, blowing around 14mph. Humidity levels are comfortable, sitting around 50%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 76° \| Lo 52°	50%	0%	0%	13.9 mph

Sunny

Sunny with a high of 80°F and a low of 57°F. Winds will be moderate, blowing around 12mph. Humidity levels are comfortable, sitting around 40%.

Temperature	Humidity	Rainfall	Snow	Wind
Hi 80° \| Lo 57°	40%	0%	0%	11.6 mph

Yesterday 5-Day Wind

Weather Radar Map

Live Mount Vernon, SD weather with minute-by-minute precipitation, radar, barometric pressure, temperatures and wind speeds for today thru Friday, as you toggle through each map layer. Use the slider to move forward and back in time to view how current data and forecasts will affect the region; you can press or click on the map to show metrics available for each tab. The related timestamp is located above the Play button which will animate the weather forecast.

Hourly Temperature

The current temperature today is 2^°F. The morning temperature of 2°^F is lowest at 3am with the daytime high of 28°^F at 5pm and a low around 12°^F at 11am is expected.

Hourly Barometric Pressure

The highest pressure today is 30.44^inHg at 12am and lowest being 30.23^inHg at 6pm.

Hourly Wind Speeds

The fastest wind is reported to be 13.9^mph at 7am, while the slowest is 2.7^mph around 10pm; expect wind gusts peaking 23.8^mph at 6am. View live wind conditions in Mount Vernon

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