Weather World
Heap Lake, SD 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Heap Lake Weather Forecast
Heap Lake, SD Weather Forecast Date: 1107 PM CDT Sun Aug 30 2026
Weather forecast for Heap Lake, SD
Tonight Lo: 61°F Lo: 16°C |
Tonight... Partly cloudy and windy. Lows in the lower 60s. Northwest winds 20 to 30 mph with gusts up to 45 mph. |
Mon Hi: 85°FHi: 29°C Lo: 61°F Lo: 16°C |
Monday... Mostly sunny. Highs in the mid 80s. Northwest winds 5 to 10 mph. |
Tue Hi: 81°FHi: 27°C Lo: 61°F Lo: 16°C |
Tuesday... Mostly cloudy. A slight chance of showers in the morning, then showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 80s. Southeast winds 5 to 10 mph. Chance of rain 70%. |
Wed Hi: 89°FHi: 32°C Lo: 65°F Lo: 18°C |
Wednesday... Partly sunny. Highs in the upper 80s. |
| Thu Hi: 91°FHi: 33°C Lo: 65°F Lo: 18°C |
Thursday... Partly sunny. Hot with highs in the lower 90s. |
| Fri Hi: 91°FHi: 33°C Lo: 69°F Lo: 21°C |
Friday... Mostly clear. Hot. Lows in the mid 60s. Highs in the lower 90s. |
| Sat Hi: 91°FHi: 33°C Lo: 65°F Lo: 18°C |
Saturday... Partly sunny. Hot with highs in the lower 90s. |
Heap Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...