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Mount Vernon, South Dakota 57363 weather, straight from the source.

Current conditions, official National Weather Service forecasts and alerts, rain timing, local radar, air quality, wind, humidity, sunrise, sunset, and the latest reported update for Mount Vernon, South Dakota 57363. Always follow local warnings and emergency instructions.

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Weather guidance for your areaPlan with the complete forecast

Use current official weather information for Mount Vernon, South Dakota 57363 before making weather-sensitive plans.

Safety guides

Weather status

No active NWS alerts found for Mount Vernon, South Dakota 57363

Conditions can change quickly. Keep Wireless Emergency Alerts enabled and continue to monitor official information.

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What’s next

Hourly forecast

Mount Vernon, South Dakota 57363

Check the latest hourly conditions, seven-day outlook, rain timing, wind, sunrise and sunset for Mount Vernon, South Dakota 57363. Forecasts and alerts update from NOAA and the National Weather Service.

75°Partly Cloudy7% rain
74°Partly Cloudy6% rain
73°Mostly Cloudy9% rain
71°Mostly Cloudy10% rain
69°Chance Showers And Thunderstorms37% rain
68°Showers And Thunderstorms Likely58% rain
67°Chance Showers And Thunderstorms53% rain
66°Showers And Thunderstorms Likely56% rain

Next 24 hours

Rain Timeline

Highest chance 60%

Most likely around 11 PM, 12 AM, 1 AM, 2 AM. Expected type: Thunderstorms.

7%None
6%None
9%None
10%None
37%Thunderstorms
58%Thunderstorms
53%Thunderstorms
56%Thunderstorms
60%Thunderstorms
58%Thunderstorms
28%Thunderstorms
19%Thunderstorms
13%None
10%None
9%None
11%None
10%None
3%None
3%None
1%None
1%None
1%None
1%None
0%None

Official NWS outlook

7-Day Forecast

High / low temperatures

Today

75°63°

Chance Showers And Thunderstorms

Precipitation
60%
Wind
SSE 15 mph
Sunrise
6:47 AM
Sunset
8:26 PM

Mon

86°66°

Mostly Sunny

Precipitation
14%
Wind
SSE 10 to 15 mph
Sunrise
6:49 AM
Sunset
8:24 PM

Tue

89°62°

Mostly Sunny

Precipitation
5%
Wind
WSW 5 to 15 mph
Sunrise
6:50 AM
Sunset
8:23 PM

Wed

84°57°

Sunny

Precipitation
0%
Wind
NW 10 to 15 mph
Sunrise
6:51 AM
Sunset
8:21 PM

Thu

85°62°

Sunny

Precipitation
38%
Wind
NNE 5 mph
Sunrise
6:52 AM
Sunset
8:19 PM

Fri

85°64°

Chance Showers And Thunderstorms

Precipitation
45%
Wind
SE 10 to 15 mph
Sunrise
6:53 AM
Sunset
8:18 PM

Sat

86°65°

Chance Showers And Thunderstorms

Precipitation
30%
Wind
SE 10 to 15 mph
Sunrise
6:54 AM
Sunset
8:16 PM

Forecasts, icons, precipitation, wind, and alerts are from the National Weather Service. Sunrise and sunset are calculated locally for the selected coordinates.

Weather for a healthier day

Healthy Weather

Real Feel79°F
Good conditions for walking

Conditions look reasonable, but stay alert for quick weather changes.

WindS10 mph
Best walk timeBetter weather window: 6 PM–8 PM

Walking: 7% average rain chance, near 75°F, with winds near 15 mph.

Official EPA AirNowLocal air qualityMount Vernon, South Dakota 57363
View AQI +
More weather details
Wind gustsNot reported
Rain now7%next hour
Humidity58%current
UV indexCheckingEPA forecast

Wind impact: Noticeable breeze with generally minor outdoor impact.

Full Healthy Weather guides and reminders →

“Better weather window” is planning guidance based on official NWS data—not a promise of safe conditions. Review active alerts and radar before leaving.

Storm & DetailsGusts, pressure, visibility and official risk outlooksView details +
Wind gustNot reported
Pressure30.00 in
Visibility10.0 mi
Peak rain chance60%
Dew point63°F
Active alertsNone

Official risk outlooks

These national tools add expert storm, heavy-rain and flooding context to your local forecast.

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Official tropical weather

Hurricane center

NOAA National Hurricane Center updates, outlooks, and storm resources in one place.