Catonsville High School, MD Weather Forecast
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Catonsville High School Weather Forecast
| REST OF THE OVERNIGHT | TODAY | TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY |
| Chance of Showers | Chance of T-Storm | Chance of T-Storm | Thunderstorms | Thunderstorms | Chance of Showers | Chance of Showers | Chance of T-Storm | Chance of Showers | Chance of Showers | Partly Cloudy | Sunny |
| Lo: 71°FLo: 22°C | Hi: 89°FHi: 32°C | Lo: 75°FLo: 24°C | Hi: 95°FHi: 35°C | Lo: 75°FLo: 24°C | Hi: 90°FHi: 32°C | Lo: 75°FLo: 24°C | Hi: 95°FHi: 35°C | Lo: 71°FLo: 22°C | Hi: 89°FHi: 32°C | Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C |
| POP: 20% | POP: 20% | POP: 20% | POP: 50% | POP: 50% | POP: 40% | POP: 40% | POP: 40% | POP: 40% | POP: 30% |
POP = Probability of Precipitation.
Weather Outlook Updated: 456 AM EDT Mon Aug 31 2026 

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Issued: 359 AM EDT Mon Aug 31 2026
Key Messages
- 1) Scattered thunderstorms expected again today.
- 2) Near-record early September heat expected.
- 3) Thunderstorm chances increase this week, but timing remains highly uncertain.
Discussion
...
KEY MESSAGE 1...Scattered thunderstorms expected again today.
Low-level troughiness will remain in place through Tuesday and should support development of widely scattered to scattered afternoon thunderstorms in an increasingly hot and humid air mass. The best chance for thunderstorms will be across ...
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