Weather in Harrison, SD
Updated 2026-08-11 10:15 local time · ZIP codes 57344
Sunny
No government weather alerts were returned for this location at the latest update.
Next hours
77°14% rain84°9% rain86°7% rain88°5% rain89°4% rain90°4% rain90°3% rain90°3% rain89°3% rain87°3% rain84°5% rain
80°7% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Weather insights for today
Rain chance stays relatively low over the next 12 hours (up to 14%).
It feels like 82°F with winds near 9 mph.
84°F, 5% rain chance and 10 mph wind.
Visibility is around 6 mi; gusts may reach 21 mph.
Current temperature is 77°F, wind 9 mph, rain chance up to 14%.
UV index is 2.
Harrison weather today
Sunny and 77°F in Harrison, SD. Today's high is 90°F with a 9% rain chance. Winds are around 9 mph with gusts near 10 mph. Relative humidity is 88%, pressure is 29.80 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Harrison
Sunrise is at 06:35 AM and sunset is at 08:44 PM. Tomorrow's forecast calls for Sunny with a high near 91°F and a low near 67°F. The maximum rain chance is 69%.