Heavy Rain Expected Tonight and Friday Night with Flash Flooding Possible

Periods of rain & thunderstorms are expected into Saturday, with areas of heavy rain likely tonight and again Friday night. The heavy rains will bring a potential for flash flooding, as well as additional rises on area rivers & creeks. Monitor the latest river levels and rainfall forecasts here. Read More >

Hazardous Weather Conditions

Current conditions at

Sioux Falls, Foss Field (KFSD)

Lat: 43.58°NLon: 96.75°WElev: 1427ft.

Rain Fog/Mist

60°F

16°C

Humidity	93%
Wind Speed	E 13 mph
Barometer	30.26 in (1024.7 mb)
Dewpoint	58°F (14°C)
Visibility	5.00 mi
Last update	20 Jun 1:56 pm CDT

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

5 Miles W Lyons SD

Flood Watch June 20, 08:00pm until June 22, 07:00am

Click here for hazard details and duration

Flood Watch

This Afternoon
High: 67 °F
Showers
Tonight
Low: 64 °F
Chance
T-storms then
Heavy Rain
Friday
High: 83 °F
T-storms
Likely then
Showers
Likely
Friday Night
Low: 68 °F
T-storms
Saturday
High: 79 °F
Showers
Likely then
Chance
T-storms
Saturday Night
Low: 62 °F
Mostly Clear
Sunday
High: 83 °F
Sunny
Sunday Night
Low: 64 °F
Mostly Clear
Monday
High: 91 °F
Mostly Sunny

Detailed Forecast

This Afternoon

Showers and possibly a thunderstorm. High near 67. East wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

Tonight

Showers and thunderstorms before 4am, then showers and possibly a thunderstorm between 4am and 5am, then showers and thunderstorms likely after 5am. Some of the storms could produce heavy rainfall. Low around 64. East southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

Friday

Showers and thunderstorms likely before 1pm, then showers likely and possibly a thunderstorm between 1pm and 3pm, then a chance of showers and thunderstorms after 3pm. Mostly cloudy, with a high near 83. South wind 10 to 15 mph. Chance of precipitation is 60%. New rainfall amounts between a quarter and half of an inch possible.

Friday Night

Showers and thunderstorms before 1am, then showers and possibly a thunderstorm between 1am and 4am, then showers and thunderstorms likely after 4am. Low around 68. Southeast wind around 10 mph, with gusts as high as 20 mph. Chance of precipitation is 100%.

Saturday

Showers likely and possibly a thunderstorm before 7am, then a chance of showers and thunderstorms between 7am and 1pm. Mostly cloudy, with a high near 79. Southwest wind 10 to 15 mph becoming northwest in the afternoon. Winds could gust as high as 20 mph. Chance of precipitation is 60%.

Saturday Night

Mostly clear, with a low around 62. West northwest wind 5 to 10 mph.

Sunday

Sunny, with a high near 83.

Sunday Night

Mostly clear, with a low around 64.

Monday

Mostly sunny, with a high near 91.

Monday Night

A 30 percent chance of showers and thunderstorms before 1am. Mostly clear, with a low around 68.

Tuesday

Sunny, with a high near 85.