Forecast Monster: Real-Time Local Weather Forecasts

Forecast Monster

Sioux Falls, SD

Monday, August 18, 2025 at 12:48 PM

MOSTLY_CLOUDY

79°C

Feels like 83°C

Mostly cloudy

High: 83°C

Low: 69°C

Today's Details

Wind

2mph

Gusts

4mph

Cloud Cover

69%

UV Index

5

Humidity

75%

Precipitation

10%

Sunrise

6:35AM

Sunset

8:25PM

Hourly Forecast

12:00PM

MOSTLY_CLOUDY
77°C

Mostly cloudy

1:00PM

MOSTLY_CLOUDY
79°C

Mostly cloudy

2:00PM

PARTLY_CLOUDY
80°C

Partly sunny

3:00PM

PARTLY_CLOUDY
82°C

Partly sunny

4:00PM

MOSTLY_CLEAR
83°C

Mostly sunny

5:00PM

CLEAR
84°C

Sunny

6:00PM

CLEAR
83°C

Sunny

7:00PM

CLEAR
81°C

Sunny

8:00PM

CLEAR
80°C

Sunny

9:00PM

MOSTLY_CLEAR
77°C

Clear with periodic clouds

10:00PM

PARTLY_CLOUDY
76°C

Partly cloudy

11:00PM

PARTLY_CLOUDY
74°C

Partly cloudy

12:00AM

MOSTLY_CLEAR
73°C

Clear with periodic clouds

1:00AM

PARTLY_CLOUDY
72°C

Partly cloudy

2:00AM

MOSTLY_CLEAR
70°C

Clear with periodic clouds

3:00AM

MOSTLY_CLEAR
70°C

Clear with periodic clouds

4:00AM

PARTLY_CLOUDY
69°C

Partly cloudy

5:00AM

PARTLY_CLOUDY
68°C

Partly cloudy

6:00AM

PARTLY_CLOUDY
67°C

Partly cloudy

7:00AM

PARTLY_CLOUDY
68°C

Partly sunny

8:00AM

PARTLY_CLOUDY
70°C

Partly sunny

9:00AM

PARTLY_CLOUDY
73°C

Partly sunny

10:00AM

PARTLY_CLOUDY
77°C

Partly sunny

11:00AM

PARTLY_CLOUDY
79°C

Partly sunny

Live Sioux Falls, SD Weather Radar

2025-08-18 11:53 CDT

10-Day Forecast for Sioux Falls, SD

Find a detailed, 10-day weather forecast for Sioux Falls, SD below. Click the row to expand the forecast for that day and night.

Daytime
Partly sunny

Partly sunny

High: 84°C

Low: 67°C

Humidity: 80%

Clouds: 70%

UV Index: 6 (High)

Rain: 30%

Wind: 6 mph

Nighttime
Partly cloudy

Partly cloudy

Humidity: 93%

Clouds: 45%

Rain: 5%

Wind: 5 mph

Sun Events

Sunrise:

6:35AM

Sunset:

8:25PM

Moon Events

Phase:

🌘

waning crescent

Moonrise:

1:00AM

Moonset:

5:50PM

Additional Details

Feels Like High

89°C

Feels Like Low

75°C

Heat Index

89°C

Daytime
Mostly sunny

Mostly sunny

High: 85°C

Low: 67°C

Humidity: 75%

Clouds: 54%

UV Index: 7 (High)

Rain: 5%

Wind: 3 mph

Nighttime
Clear

Clear

Humidity: 89%

Clouds: 35%

Rain: 15%

Wind: 5 mph

Sun Events

Sunrise:

6:36AM

Sunset:

8:23PM

Moon Events

Phase:

🌘

waning crescent

Moonrise:

2:04AM

Moonset:

6:42PM

Additional Details

Feels Like High

89°C

Feels Like Low

75°C

Heat Index

89°C

Daytime
Sunny

Sunny

High: 83°C

Low: 66°C

Humidity: 77%

Clouds: 30%

UV Index: 7 (High)

Rain: 15%

Wind: 3 mph

Nighttime
Clear

Clear

Humidity: 87%

Clouds: 10%

Wind: 8 mph

Sun Events

Sunrise:

6:37AM

Sunset:

8:21PM

Moon Events

Phase:

🌘

waning crescent

Moonrise:

3:16AM

Moonset:

7:22PM

Additional Details

Feels Like High

87°C

Feels Like Low

66°C

Heat Index

87°C

60% Thunderstorm

Daytime
Sunny

Sunny

High: 83°C

Low: 66°C

Humidity: 76%

Clouds: 11%

UV Index: 8 (Very High)

Wind: 11 mph

Nighttime
Light rain

Light rain

Humidity: 87%

Clouds: 75%

Rain: 50%

Wind: 10 mph

Sun Events

Sunrise:

6:38AM

Sunset:

8:20PM

Moon Events

Phase:

🌘

waning crescent

Moonrise:

4:31AM

Moonset:

7:53PM

Additional Details

Feels Like High

87°C

Feels Like Low

66°C

Heat Index

87°C

High UV Index

Daytime
Partly sunny

Partly sunny

High: 78°C

Low: 58°C

Humidity: 72%

Clouds: 65%

UV Index: 6 (High)

Rain: 15%

Wind: 10 mph

Nighttime
Partly cloudy

Partly cloudy

Humidity: 85%

Clouds: 46%

Rain: 5%

Wind: 5 mph

Sun Events

Sunrise:

6:39AM

Sunset:

8:18PM

Moon Events

Phase:

🌑

new moon

Moonrise:

5:46AM

Moonset:

8:17PM

Additional Details

Feels Like High

80°C

Feels Like Low

58°C

Heat Index

80°C

40% Thunderstorm

Daytime
Sunny

Sunny

High: 75°C

Low: 52°C

Humidity: 61%

Clouds: 37%

UV Index: 7 (High)

Rain: 25%

Wind: 9 mph

Nighttime
Clear

Clear

Humidity: 77%

Clouds: 10%

Wind: 9 mph

Sun Events

Sunrise:

6:41AM

Sunset:

8:16PM

Moon Events

Phase:

🌑

new moon

Moonrise:

6:58AM

Moonset:

8:38PM

Additional Details

Feels Like High

77°C

Feels Like Low

50°C

Heat Index

77°C

10% Thunderstorm

Daytime
Sunny

Sunny

High: 72°C

Low: 52°C

Humidity: 59%

Clouds: 31%

UV Index: 7 (High)

Wind: 10 mph

Nighttime
Clear

Clear

Humidity: 78%

Clouds: 20%

Wind: 6 mph

Sun Events

Sunrise:

6:42AM

Sunset:

8:15PM

Moon Events

Phase:

🌒

waxing crescent

Moonrise:

8:06AM

Moonset:

8:56PM

Additional Details

Feels Like High

77°C

Feels Like Low

52°C

Heat Index

77°C

Daytime
Partly sunny

Partly sunny

High: 72°C

Low: 53°C

Humidity: 62%

Clouds: 40%

UV Index: 7 (High)

Wind: 5 mph

Nighttime
Partly cloudy

Partly cloudy

Humidity: 76%

Clouds: 61%

Rain: 5%

Wind: 6 mph

Sun Events

Sunrise:

6:43AM

Sunset:

8:13PM

Moon Events

Phase:

🌒

waxing crescent

Moonrise:

9:12AM

Moonset:

9:13PM

Additional Details

Feels Like High

77°C

Feels Like Low

53°C

Heat Index

77°C

Daytime
Partly sunny

Partly sunny

High: 74°C

Low: 58°C

Humidity: 71%

Clouds: 50%

UV Index: 6 (High)

Rain: 5%

Wind: 10 mph

Nighttime
Partly cloudy

Partly cloudy

Humidity: 83%

Clouds: 56%

Rain: 5%

Wind: 12 mph

Sun Events

Sunrise:

6:44AM

Sunset:

8:11PM

Moon Events

Phase:

🌒

waxing crescent

Moonrise:

10:17AM

Moonset:

9:31PM

Additional Details

Feels Like High

77°C

Feels Like Low

57°C

Heat Index

77°C

Daytime
Rain

Rain

High: 76°C

Low: 60°C

Humidity: 73%

Clouds: 80%

UV Index: 4 (Moderate)

Rain: 20%

Wind: 13 mph

Nighttime
Chance of showers

Chance of showers

Humidity: 85%

Clouds: 80%

Rain: 50%

Wind: 10 mph

Sun Events

Sunrise:

6:45AM

Sunset:

8:10PM

Moon Events

Phase:

🌒

waxing crescent

Moonrise:

11:21AM

Moonset:

9:50PM

Additional Details

Feels Like High

78°C

Feels Like Low

59°C

Heat Index

78°C

10% Thunderstorm

Sioux Falls, SD Weather

Get accurate weather forecasts for Sioux Falls and other locations in SD. Plan your day with detailed hourly and 7-day weather predictions, current conditions, and weather alerts.