| NWS Forecast for: Day County Issued by: National Weather Service Aberdeen, SD Last Update: 632 AM CDT Sat Jul 25 2026 |  |
Today: Patchy fog this morning. Partly sunny. Warmer with highs in the mid 90s. Southwest winds 5 to 10 mph, becoming northwest this afternoon. Tonight: Mostly cloudy. Humid with lows in the mid 70s. South winds 5 to 10 mph with gusts up to 20 mph. Sunday: Partly sunny. Hot with highs in the mid 90s. South winds 5 to 10 mph with gusts up to 20 mph. Heat index values up to 103 in the afternoon. Sunday Night: Mostly clear. Humid with lows in the lower 70s. South winds 5 to 10 mph, becoming northwest after midnight. Heat index values up to 103 early in the evening. Monday: Mostly sunny. Hot with highs in the lower 90s. North winds 5 to 10 mph with gusts up to 20 mph. Monday Night: Partly cloudy. Lows around 70. Tuesday And Tuesday Night: Mostly clear. Hot. Highs in the lower 90s. Lows around 70. Wednesday: Partly sunny. Hot with highs in the lower 90s. Wednesday Night And Thursday: Partly cloudy. A 40 percent chance of thunderstorms. Hot. Lows around 70. Highs around 90. Thursday Night: Mostly clear. A chance of thunderstorms, mainly in the evening. Lows in the upper 60s. Chance of rain 40 percent. Friday: Mostly sunny. Highs in the upper 80s. | |
| Zone Forecast: Day County | |
Visit your local NWS office at: https://www.weather.gov/abr |