Weather WorldPost Lake, SD 7-Day Weather Forecast
Quick Weather Clicks
Settings
Sun & Moon
Post Lake Weather Forecast
Post Lake, SD Weather Forecast Date: 521 AM CDT Sun Oct 25 2026
Weather forecast for Post Lake, SD
Today Hi: 49°FHi: 9°C Lo: 31°F Lo: -1°C |
Today... Cloudy. A slight chance of rain this morning, then rain likely this afternoon. Highs in the upper 40s. East winds 5 to 10 mph. Chance of rain 70%. |
| Mon Hi: 41°FHi: 5°C Lo: 29°F Lo: -2°C |
Monday... Rain. Highs in the lower 40s. Northeast winds 15 to 20 mph with gusts up to 30 mph. Chance of rain near 100%. |
Tue Hi: 55°FHi: 13°C Lo: 35°F Lo: 2°C |
Tuesday... Mostly cloudy in the morning, then becoming partly sunny. Not as cool with highs in the mid 50s. Southwest winds 5 to 10 mph with gusts up to 20 mph, increasing to south 15 to 20 mph with gusts up to 30 mph in the afternoon. |
Wed Hi: 59°FHi: 15°C Lo: 35°F Lo: 2°C |
Wednesday... Partly cloudy. Highs in the upper 50s. Lows in the mid 30s. |
| Thu Hi: 59°FHi: 15°C Lo: 35°F Lo: 2°C |
Thursday... Partly cloudy. Highs in the upper 50s. Lows in the mid 30s. |
| Thu Hi: 59°FHi: 15°C Lo: 41°F Lo: 5°C |
Thursday... Partly cloudy. Highs in the upper 50s. Lows in the mid 30s. |
| Fri Hi: 61°FHi: 16°C Lo: 41°F Lo: 5°C |
Friday... Mostly cloudy. Lows in the lower 40s. Highs in the lower 60s. |
Post Lake Radar Loop
Use the map search tool if you want to place a location marker on the radar map...