Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Heat dome to bring 90 to 100-degree temps. See when the heat will peak. Chevron right
'Extreme' fire risk grips the West amid winds, low humidity. Click for details. Chevron right

Mount Vernon, SD

78°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Mount Vernon

South Dakota

78°
No results found.
Try searching for a city, zip code or point of interest.
Get Premium+
Create Your Account Unlock extended daily and hourly forecasts — all with your free account.
Let's Go Chevron right
Have an account already? Log In
settings
Help
Mount Vernon, SD Weather
Today WinterCast Local {stormName} Tracker Hourly 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps
News

News & Features

Astronomy

Business

Climate

Health

Recreation

Sports

Travel
For Business

Warnings

Data Suite

Forensics

Advertising

Superior Accuracy™

Video

Winter Center
Today

Hourly

 10-Day Radar MinuteCast® Monthly Air Quality Health & Activities

View hourly forecasts 10-days ahead

Activate Your Premium+ Subscription

Chevron right

7 PM

81°
RealFeel® 79°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 7%
Chevron down
Partly sunny

RealFeel Shade™78°

Heat Index83°

WindSSE 21 mph

Air QualityFair

Max UV Index1.4 (Low)

Wind Gusts38 mph

Humidity63%

Indoor Humidity63% (Very Humid)

Dew Point67° F

AccuLumen Brightness Index™8 (Bright)

Cloud Cover45%

Visibility10 mi

Cloud Ceiling30000 ft

8 PM

79°
RealFeel® 75°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 69%
Chevron down
Thunderstorms

RealFeel Shade™75°

Heat Index80°

WindSSE 17 mph

Air QualityFair

Max UV Index0.1 (Low)

Wind Gusts32 mph

Humidity77%

Indoor Humidity77% (Very Humid)

Dew Point71° F

AccuLumen Brightness Index™1 (Dark)

Cloud Cover94%

Rain0.15 in

Visibility4 mi

Cloud Ceiling2000 ft

9 PM

76°
RealFeel® 76°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 49%
Chevron down
Cloudy

RealFeel Shade™76°

WindSSE 16 mph

Air QualityFair

Max UV Index0.0 (Low)

Wind Gusts28 mph

Humidity83%

Indoor Humidity83% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling3700 ft

10 PM

75°
RealFeel® 71°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 69%
Chevron down
Thunderstorms

WindSE 16 mph

Air QualityFair

Wind Gusts22 mph

Humidity86%

Indoor Humidity86% (Very Humid)

Dew Point70° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Rain0.15 in

Visibility4 mi

Cloud Ceiling2000 ft

11 PM

73°
RealFeel® 72°
Pleasant
RealFeel Guide
Pleasant
63° to 81°
Most consider this temperature range ideal.
LEARN MORE
rain drop 34%
Chevron down
Cloudy

WindSE 16 mph

Air QualityFair

Wind Gusts23 mph

Humidity87%

Indoor Humidity87% (Very Humid)

Dew Point69° F

AccuLumen Brightness Index™0 (Dark)

Cloud Cover94%

Visibility10 mi

Cloud Ceiling4100 ft

Hourly Weather Forecast for Mount Vernon

AccuWeather's hourly forecast for Mount Vernon provides hour-by-hour temperatures, RealFeel® Temperature, and precipitation probability through the next 10 days. The current hour shows 81° with a RealFeel® of 79°, partly sunny with a 7% chance of precipitation. Each hourly forecast includes wind speed, humidity, air quality, UV index, and the AccuLumen Brightness Index™, AccuWeather's measure of perceived outdoor light intensity. Forecasts are generated by proprietary systems developed by AccuWeather meteorologists since 1962.

Further Ahead

Tomorrow

Monday

10-Day

Around the Globe

Hurricane Tracker

Severe Weather

Radar & Maps

News

Video

Winter Center

Top Stories

Weather Forecasts

Heat dome to bring 90-100 F temperatures to 200 million in US

5 hours ago

Hurricane

Massive Saharan dust clouds to approach Florida, Gulf this weekend

13 hours ago
Live Blog

Live: World Cup 2026 weather updates

LATEST ENTRY

Thunderstorms could threaten Philadelphia and New Jersey matches Saturday

8 hours ago

Hurricane

Building heat dome could spark tropical development near southern U.S.

12 hours ago

Weather Forecasts

'Extreme' weather could fuel erratic wildfires in western US

4 hours ago

 More Stories

Featured Stories

Weather News

Venezuela death toll rises after back-to-back earthquakes

8 hours ago

Astronomy

Skyscraper-size asteroid to safely pass Earth this Saturday

2 days ago

Travel

Small aircraft crashes into Beijing’s tallest skyscraper

1 day ago

Recreation

Snake hunters compete for $25,000 wrangling pythons in Florida

2 days ago

Weather News

Utah wildfires force evacuations as crews work in hot, windy weather

1 day ago
World North America United States South Dakota Mount Vernon

Weather Near Mount Vernon:

  • Aberdeen, SD
  • Pierre, SD
  • Sioux Falls, SD
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
Company
Proven Superior Accuracy™ About AccuWeather Digital Advertising Careers Press Contact Us
Products & Services
For Business For Partners For Advertising AccuWeather APIs AccuWeather Connect Personal Weather Stations
Apps & Downloads
iPhone App Android App See all Apps & Downloads
Subscription Services
AccuWeather Premium AccuWeather Professional
More
AccuWeather Ready Business Health Hurricane Leisure and Recreation Severe Weather Space and Astronomy Sports Travel Weather News Winter Center
© 2026 AccuWeather, Inc. "AccuWeather" and sun design are registered trademarks of AccuWeather, Inc. All Rights Reserved.
Terms of Use | Privacy Policy | Cookie Policy | About Your Privacy Do Not Sell or Share My Personal Information | Data Sources

...

...

...