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Frederick County Weather Forecast
| REST OF TODAY | TONIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY | SUNDAY NIGHT | LABOR DAY | MONDAY NIGHT |
 |  | |  | |  |  |  | | | |  |
| Chance of T-Storm | Thunderstorms | Chance of T-Storm | Chance of T-Storm | Chance of T-Storm | Chance of Showers | Sunny | Mostly Clear | Sunny | Mostly Clear | Mostly Sunny | Partly Cloudy |
| Hi: 85°FHi: 29°C | Lo: 71°FLo: 22°C | Hi: 91°FHi: 33°C | Lo: 71°FLo: 22°C | Hi: 89°FHi: 32°C | Lo: 65°FLo: 18°C | Hi: 81°FHi: 27°C | Lo: 60°FLo: 16°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 79°FHi: 26°C | Lo: 61°FLo: 16°C |
| POP: 60% | POP: 60% | POP: 40% | POP: 40% | POP: 50% | POP: 50% |
POP = Probability of Precipitation.
Weather Outlook Updated: 1055 AM EDT Wed Sep 02 2026 
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Issued: 1041 AM EDT Wed Sep 2 2026
Key Messages
- 1) Daily severe weather threat through the end of the week.
- 2) Hot and humid conditions yield likely record high minimum temperatures this week.
- 3) Heat & thunderstorms begin to decrease heading into Labor Day weekend.
Discussion
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KEY MESSAGE 1...Daily severe weather threat through the end of the week.
Multiple rounds of thunderstorms, some likely severe with damaging winds, are likely this afternoon through Friday as upper level disturbances move from the Great Lks into the Mid Atlan...