Sinai, South Dakota | 10-Day Weather Forecasts & Weekend Weather | WeatherBug
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10 Day Forecast
  • Forecast night icon
    Night
    Clear
    29°
    Thursday 4/18
    Forecast night icon
    29°
    Clear
    Hourly
    Night Details
    Clear. Low temperature around 29F. Dew point will be around 20F with an average humidity of 49%. Winds will be 14 mph from the W.
  • Forecast day icon
    Friday
    Windy
    40°
    Forecast night icon
    Night
    Mostly Cloudy
    26°
    Friday 4/19
    Day
    40°
    Windy
    Forecast day icon
    Night
    26°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny this morning then partly sunny with scattered sprinkles with isolated snow showers this afternoon. Windy with highs in the lower 40s. West winds 20 to 30 mph with gusts up to 40 mph. Chance of precipitation 20 percent.
    Night Details
    Mostly cloudy with scattered sprinkles with isolated snow showers in the evening then mostly clear after midnight. Breezy with lows in the mid 20s. Northwest winds 15 to 25 mph with gusts up to 35 mph diminishing to 10 to 15 mph with gusts up to 25 mph after midnight. Chance of precipitation 20 percent.
  • Forecast day icon
    Saturday
    Sunny
    47°
    Forecast night icon
    Night
    Mostly Clear
    28°
    Saturday 4/20
    Day
    47°
    Sunny
    Forecast day icon
    Night
    28°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Sunny. Highs in the upper 40s. Northwest winds 15 to 20 mph.
    Night Details
    Mostly clear. Lows in the mid 20s. West winds 10 to 15 mph.
  • Forecast day icon
    Sunday
    Sunny
    57°
    Forecast night icon
    Night
    Partly Cloudy
    40°
    Sunday 4/21
    Day
    57°
    Sunny
    Forecast day icon
    Night
    40°
    Partly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Sunny. Not as cool with highs in the upper 50s. West winds 10 to 15 mph.
    Night Details
    Mostly clear in the evening then becoming partly cloudy. Not as cool with lows in the upper 30s.
  • Forecast day icon
    Monday
    70% Chance Rain Showers
    59°
    Forecast night icon
    Night
    30% Chance Rain Showers
    40°
    Monday 4/22
    Day
    59°
    70% Chance Rain Showers
    Forecast day icon
    Night
    40°
    30% Chance Rain Showers
    Forecast night icon
    Hourly
    Day Details
    Mostly cloudy. A chance of showers in the morning then showers likely in the afternoon. Highs in the lower 60s. Chance of rain 70 percent.
    Night Details
    Partly cloudy with a 30 percent chance of showers. Lows in the upper 30s.
  • Forecast day icon
    Tuesday
    Mostly Sunny
    56°
    Forecast night icon
    Night
    Mostly Clear
    35°
    Tuesday 4/23
    Day
    56°
    Mostly Sunny
    Forecast day icon
    Night
    35°
    Mostly Clear
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the mid 50s.
    Night Details
    Mostly clear. Lows in the lower 30s.
  • Forecast day icon
    Wednesday
    Mostly Sunny
    60°
    Forecast night icon
    Night
    Mostly Cloudy
    43°
    Wednesday 4/24
    Day
    60°
    Mostly Sunny
    Forecast day icon
    Night
    43°
    Mostly Cloudy
    Forecast night icon
    Hourly
    Day Details
    Mostly sunny. Highs in the lower 60s.
    Night Details
    Mostly cloudy. Lows in the lower 40s.
  • Forecast day icon
    Thursday
    30% Chance Rain Showers
    55°
    Forecast night icon
    Night
    50% Chance of Rain
    44°
    Thursday 4/25
    Day
    55°
    30% Chance Rain Showers
    Forecast day icon
    Night
    44°
    50% Chance of Rain
    Forecast night icon
    Day Details
    Partly sunny. A chance of showers in the afternoon. Highs in the lower 60s. Chance of rain 30 percent.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 45%. Low temperature around 44F. Dew point will be around 39F with an average humidity of 72%. Winds will be 9 mph from the SE.
  • Forecast day icon
    Friday
    60% Chance of Rain
    56°
    Forecast night icon
    Night
    60% Chance of Rain
    46°
    Friday 4/26
    Day
    56°
    60% Chance of Rain
    Forecast day icon
    Night
    46°
    60% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 55%. High temperature around 56F. Dew point will be around 42F with an average humidity of 70%. Winds will be 9 mph from the SE.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 55%. Low temperature around 46F. Dew point will be around 42F with an average humidity of 77%. Winds will be 7 mph from the E.
  • Forecast day icon
    Saturday
    50% Chance of Rain
    58°
    Forecast night icon
    Night
    40% Chance of Rain
    46°
    Saturday 4/27
    Day
    58°
    50% Chance of Rain
    Forecast day icon
    Night
    46°
    40% Chance of Rain
    Forecast night icon
    Day Details
    Cloudy with a chance of rain. Chance of precipitation 45%. High temperature around 58F. Dew point will be around 45F with an average humidity of 73%. Winds will be 4 mph from the E.
    Night Details
    Cloudy with a chance of rain. Chance of precipitation 40%. Low temperature around 46F. Dew point will be around 44F with an average humidity of 77%. Winds will be 2 mph from the NE.