Live Weather & Forecast
Weather in Watertown
South Dakota, United States · Real-time conditions & 3-day outlook
7°C
Feels like 4°C
45°F / Feels 39°F
Fog
Watertown, South Dakota
🌙 Nighttime
Updated: 2026-04-13 06:15
Humidity
97%
Wind
20.2 km/h ENE
Wind Gust
37.4 km/h
Pressure
1007 mb
Visibility
0.4 km
UV Index
0
(Low)
Precipitation
0 mm
Cloud Cover
60%
Dew Point
7.7°C
Wind Degree
69°
Air Quality Index
US EPA: Good
UK DEFRA: Low (1)
CO
186.9 μg/m³
NO₂
2.9 μg/m³
O₃
54 μg/m³
SO₂
0.9 μg/m³
PM 2.5
8.1 μg/m³
PM 10
9.4 μg/m³
Today's Hourly Forecast
24-hour breakdown for Watertown, South Dakota
12 AM
13°
Clear
1 AM
11°
Clear
2 AM
11°
Clear
3 AM
10°
Overcast
4 AM
9°
Overcast
5 AM
9°
Overcast
6 AM
7°
Fog
7 AM
8°
Overcast
8 AM
8°
Overcast
9 AM
8°
Overcast
10 AM
8°
Overcast
11 AM
9°
Overcast
12 PM
10°
Overcast
1 PM
10°
Overcast
2 PM
10°
Patchy rain nearby
3 PM
10°
Overcast
4 PM
11°
Patchy rain nearby
5 PM
15°
Patchy rain nearby
6 PM
16°
Partly Cloudy
7 PM
14°
Sunny
8 PM
12°
Partly Cloudy
9 PM
12°
Partly Cloudy
10 PM
10°
Clear
11 PM
9°
Cloudy
3-Day Forecast
Daily overview for Watertown, South Dakota
Today
Patchy rain nearby
18°
/
7°
🌧️ 76% chance of rain
💧 Avg. humidity: 90%
💨 Max wind: 22.7 km/h
🌧️ Total precip: 0.21 mm
☀️ UV Index: 1.4
🌅 Sunrise: 06:47 AM
🌇 Sunset: 08:11 PM
🌙 Waning Crescent
🌑 Moon: 23% lit
Tue, Apr 14
Mist
15°
/
5°
🌧️ 0% chance of rain
💧 Avg. humidity: 76%
💨 Max wind: 18 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.3
🌅 Sunrise: 06:45 AM
🌇 Sunset: 08:13 PM
🌙 Waning Crescent
🌑 Moon: 15% lit
Wed, Apr 15
Sunny
23°
/
4°
🌧️ 0% chance of rain
💧 Avg. humidity: 61%
💨 Max wind: 19.1 km/h
🌧️ Total precip: 0 mm
☀️ UV Index: 1.2
🌅 Sunrise: 06:44 AM
🌇 Sunset: 08:14 PM
🌙 Waning Crescent
🌑 Moon: 8% lit
Best Time to Visit Watertown
Plan your trip to Watertown, United States around the most favorable weather conditions.
Peak Season
June – September
Warm, dry summers — ideal for outdoor activities.
Shoulder Season
April – May, October
Fewer crowds, moderate prices, mild weather.
Off Season
November – March
Cooler temperatures; some regions may experience rain or snow.
Frequently Asked Questions
What is the current weather in Watertown?
Current conditions in Watertown: Fog, temperature 7°C, humidity 97%.
What is the best time to visit Watertown?
The best time to visit Watertown is typically June – September. Warm, dry summers — ideal for outdoor activities.
What is the climate like in Watertown?
Watertown is located at approximately 44.9° latitude. It has a temperate climate with warm summers and cold winters.
Does it rain a lot in Watertown?
The wettest period in Watertown is typically during November – March. Cooler temperatures; some regions may experience rain or snow.
What should I pack for a trip to Watertown?
For visits to Watertown during June – September: light clothing and sun protection. For November – March: layers and a waterproof jacket are recommended.
What country is Watertown in?
Watertown is located in United States, in the state of South Dakota.
What are the public holidays in Watertown in 2026?
View the 2026 public holidays for Watertown on our Holidays page.
What are the GPS coordinates used for the weather forecast in Watertown?
The weather forecast for Watertown uses coordinates 44.8992, -97.1153.