| NWS Forecast for: Ashton-Sandy Spring MD Issued by: National Weather Service Baltimore, MD/Washington, D.C. Last Update: 2:23 pm EDT May 18, 2026 | |
| This Afternoon: Sunny, with a high near 34. South wind around 11 km/h. Tonight: Mostly clear, with a low around 22. Southeast wind 8 to 10 km/h becoming southwest after midnight. Tuesday: Sunny and hot, with a high near 36. West wind 5 to 13 km/h. Tuesday Night: Partly cloudy, with a low around 23. South wind around 11 km/h. Wednesday: Showers and possibly a thunderstorm after 2pm. High near 34. West wind 8 to 13 km/h, with gusts as high as 29 km/h. Chance of precipitation is 90%. Wednesday Night: Showers and possibly a thunderstorm before 11pm, then showers likely. Low around 14. Chance of precipitation is 80%. Thursday: Showers likely, mainly between 8am and 2pm. Mostly cloudy, with a high near 20. Chance of precipitation is 60%. Thursday Night: A chance of showers before 8pm, then a chance of showers after 2am. Mostly cloudy, with a low around 11. Chance of precipitation is 40%. Friday: Showers likely, mainly after 8am. Mostly cloudy, with a high near 18. Chance of precipitation is 60%. Friday Night: Showers. Low around 11. Chance of precipitation is 80%. Saturday: Showers. High near 21. Chance of precipitation is 80%. Saturday Night: Showers likely. Mostly cloudy, with a low around 14. Chance of precipitation is 60%. Sunday: Showers likely and possibly a thunderstorm. Mostly cloudy, with a high near 24. Chance of precipitation is 60%. | |
| Ashton-Sandy Spring MD 39.15°N 77.01°W (Elev. 449 m) | |
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