Weather in Agar, SD
Updated 2026-09-26 08:45 local time · ZIP codes 57520
Overcast
No government weather alerts were returned for this location at the latest update.
Next hours
57°33% rain59°30% rain60°29% rain62°25% rain64°22% rain65°21% rain67°19% rain68°16% rain
68°11% rain
68°8% rain
65°9% rain
70°10% rain3-day weather forecast
Weather details
Sunrise, sunset and moon
Key weather changes ahead
Weather insights for today
There is a moderate rain chance, peaking near 32%.
It feels like 51°F with winds near 12 mph.
68°F, 8% rain chance and 6 mph wind.
Visibility is around 6 mi; gusts may reach 25 mph.
Current temperature is 57°F, wind 12 mph, rain chance up to 32%.
UV index is 0.
Local weather characteristics in Agar
South Dakota has a continental climate with hot summers, cold winters, frequent wind and strong differences between the Black Hills and the open plains.
Agar is part of the Midwest weather region. The forecast point is near 44.84°N latitude and 100.07°W longitude. Local temperature, wind and precipitation can still differ from nearby places, especially where terrain, coastlines or urban development create small-scale weather changes.
Agar weather today
Overcast and 57°F in Agar, SD. Today's high is 70°F with a 34% rain chance. Winds are around 12 mph with gusts near 25 mph. Relative humidity is 96%, pressure is 29.81 inHg, and visibility is about 6 miles.
Tonight and tomorrow in Agar
Sunrise is at 07:32 AM and sunset is at 07:30 PM. Tomorrow's forecast calls for Mist with a high near 72°F and a low near 58°F. The maximum rain chance is 17%.