Wind
SE
16 mph
G 23 mph
Local Forecast
Sinai, SD Weather Forecast & Alerts
Current conditions, 5-day forecast, and active NWS weather alerts for Sinai, SD.
Get Alerts No Active Alerts
Hour-by-Hour Current Observation
Sunday 11:55 AM CDTSunday 11:55 AM
°F
°C
69°F
Clear
- 75° / 44° High / Low
- 69° Feels Like
- 0% Chance of Rain
UV Index
9
Very High
Humidity
64%
Dew 57°F
Sun
5:59 AM · 8:49 PM
Rise · Set
Source: MADISON (KMDS). Slider scrubs the next 12 hours.
5-Day Outlook
Through Thursday
Today
75° 44°
Thunderstorms
Overnight: Thunderstorms Likely
Detailed forecast
Today
A chance of showers and thunderstorms between 2pm and 5pm, then showers and thunderstorms. Some of the storms could be severe. Cloudy. High near 74, with temperatures falling to around 71 in the afternoon. East southeast wind 15 to 20 mph, with gusts as high as 35 mph. Chance of precipitation is 90%. New rainfall amounts between a quarter and half of an inch possible.
Night
Showers and thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and 10pm, then a chance of showers and thunderstorms between 10pm and 2am, then a chance of showers and thunderstorms. Some of the storms could be severe. Cloudy. Low around 43, with temperatures rising to around 46 overnight. North northwest wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Monday
57° 37°
Thunderstorms Likely
Overnight: Rain Likely
Detailed forecast
Monday
A chance of rain showers before 7am, then showers and thunderstorms likely. Cloudy, with a high near 56. North wind 15 to 20 mph, with gusts as high as 30 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Night
Showers and thunderstorms likely. Cloudy. Low around 37, with temperatures rising to around 40 overnight. North northwest wind around 20 mph, with gusts as high as 35 mph. Chance of precipitation is 70%.
Tuesday
53° 33°
Mostly Cloudy
Overnight: Mostly Clear
Detailed forecast
Tuesday
A chance of rain showers before 7am. Mostly cloudy, with a high near 53. Northwest wind 20 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 30%.
Night
Partly cloudy, with a low around 33. North northeast wind 5 to 20 mph, with gusts as high as 30 mph.
Wednesday
64° 42°
Mostly Sunny
Overnight: Partly Cloudy
Detailed forecast
Wednesday
Sunny, with a high near 64.
Night
Partly cloudy, with a low around 42.
Thursday
66° 46°
Isolated T-storm
Overnight: Slight Chance of Rain
Detailed forecast
Thursday
A slight chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 66.
Night
A slight chance of showers and thunderstorms. Mostly cloudy, with a low around 45.
Sinai, SD Weather Analysis Tools
