Go Back
  • For Business
  • |
  • Warnings
  • Data Suite
  • Forensics
  • Advertising
  • Superior Accuracy™
Tropical Storm Fay becomes the sixth storm of 2026. See where the storm will track. Chevron right
Weekend downpours to soak Midwest, part of Northeast. Click for the forecast. Chevron right

Watertown, SD

55°F
Location Chevron down
Location News Videos
Use Current Location
Recent

Watertown

South Dakota

55°
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
Watertown, 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

Today's Weather

Sun, Sep 20

Cloudy Hi: 62°

Tonight: Overcast with a passing shower or two Lo: 50°

Current Weather

8:03 AM

55°F
RealFeel® 52°
Mostly cloudy More Details
RealFeel Shade™ 51°
Wind ENE 8 mph
Wind Gusts 8 mph
Air Quality Excellent

Watertown Weather Radar

Watertown Weather Radar
Static Radar Temporarily Unavailable
Thank you for your patience as we work to get everything up and running again.
Refresh Page
Clouds
Temperature

Hourly Weather

9 AM 56°
rain drop 7%
10 AM 58°
rain drop 7%
11 AM 59°
rain drop 7%
12 PM 60°
rain drop 7%
1 PM 61°
rain drop 6%
2 PM 61°
rain drop 5%
3 PM 62°
rain drop 5%
4 PM 62°
rain drop 6%
5 PM 61°
rain drop 7%
6 PM 60°
rain drop 7%
7 PM 60°
rain drop 10%
8 PM 59°
rain drop 15%

10-Day Weather Forecast

Today

9/20

62° 50°

Cloudy

Night: Cloudy with a shower or two
25%

Mon

9/21

57° 46°

Cool with periods of sun

Mainly cloudy
25%

Tue

9/22

60° 46°

Periods of sun

Partly cloudy
16%

Wed

9/23

62° 53°

Mostly cloudy and breezy

A couple of showers late
25%

Thu

9/24

65° 55°

Cloudy with a stray t-storm

Cloudy
55%

Fri

9/25

66° 57°

Mostly cloudy

Cloudy
15%

Sat

9/26

65° 52°

Partly sunny

Cloudy
21%

Sun

9/27

66° 52°

Increasing clouds

Clearing
3%

Mon

9/28

67° 49°

Plenty of sunshine

Clear
2%

Tue

9/29

66° 51°

Mostly sunny

Mostly cloudy
1%

Sun & Moon

12 hrs 17 mins
Rise 7:13 AM
Set 7:30 PM
Waxing Gibbous
Rise 4:52 PM
Set 1:30 AM

Air Quality

See More
Air Quality Excellent

The air quality is ideal for most individuals; enjoy your normal outdoor activities.

Allergy Outlook

See All
Tree Pollen Low Data is not supported in this location Ragweed Pollen Low Data is not supported in this location Mold Low Data is not supported in this location Grass Pollen Low Data is not supported in this location Dust & Dander Low Data is not supported in this location

Top Stories

Weather Forecasts

Downpours, flood risk to extend into another week across Midwest, East

2 hours ago

Hurricane

Tropical Storm Fay becomes Atlantic's sixth named storm

2 hours ago

Recreation

Monarch butterflies are heading south. This map shows when be near you

1 day ago

Weather Forecasts

American monsoon surge to bring flood, wildfire risks to western US

2 hours ago

AccuWeather Ready

Map: When is the final time you need to mow your lawn in 2026?

2 days ago

 More Stories

Featured Stories

Sports

New NASCAR tire rule puts rain strategy in teams’ hands

2 days ago

Severe Weather

Deadly monsoon flooding strikes Arizona

2 days ago

Recreation

Man and his dog found alive after 7 days in remote Wyoming wilderness

3 days ago

Climate

El Niño is coming for California's beachfront homes and highways

2 days ago

Travel

7 places on Earth that look AI-generated but are real

3 days ago
World North America United States South Dakota Watertown

Weather Near Watertown:

  • Aberdeen, SD
  • Fargo, ND
  • 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

...

...

...