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St. Onge, SD Weather Forecast
St. Onge, SD Weather Forecast Date: 1133 AM MDT Thu Aug 06 2026
The area/counties/county of: Northern Foothills, including the cities of: Spearfish, Whitewood, and Saint Onge.or toggle through each period.
This Afternoon... Sunny. Areas of smoke. Highs in the mid 90s. Northwest winds 10 to 15 mph with gusts up to 30 mph.
Tonight... Clear. Areas of smoke. Lows in the upper 50s. West winds 10 to 15 mph with gusts up to 30 mph, diminishing to around 5 mph after midnight.
Friday... Sunny. Areas of smoke. Highs in the upper 80s. East winds 5 to 10 mph with gusts up to 20 mph, increasing to 10 to 20 mph with gusts up to 30 mph in the afternoon.
Friday Night... Areas of smoke in the evening. Clear. Lows in the mid 60s. Southeast winds 10 to 20 mph with gusts up to 30 mph, becoming southwest 5 to 10 mph with gusts up to 20 mph after midnight.
Saturday... Sunny. Highs in the mid 90s. Northwest winds around 5 mph, increasing to northeast 10 to 15 mph in the afternoon.
Saturday Night... Mostly clear. Lows in the mid 60s.
Sunday... Partly cloudy in the morning, then clearing. Highs in the lower 90s.
Sunday Night... Mostly clear. Lows in the lower 60s.
Monday... Partly cloudy. A slight chance of showers and thunderstorms in the afternoon. Breezy with highs in the upper 80s. Chance of rain 20%.
Monday Night... Partly cloudy with a chance of showers. A chance of thunderstorms in the evening, then a slight chance of thunderstorms after midnight. Breezy with lows in the lower 60s. Chance of rain 40%.
Tuesday... Partly cloudy. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 40%.
Tuesday Night... Partly cloudy with a chance of showers. A chance of thunderstorms in the evening, then a slight chance of thunderstorms after midnight. Lows in the lower 60s. Chance of rain 40%.
POP = Probability of Precipitation
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