Harmon Field, MD Weather Forecast
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Harmon Field Weather Forecast
| REST OF TONIGHT | TUESDAY | TUESDAY NIGHT | WEDNESDAY | WEDNESDAY NIGHT | THURSDAY | THURSDAY NIGHT | FRIDAY | FRIDAY NIGHT | SATURDAY | SATURDAY NIGHT | SUNDAY |
| Clear | Mostly Sunny | Mostly Clear | Sunny | Clear | Sunny | Clear | Mostly Sunny | Partly Cloudy | Partly Sunny | Partly Cloudy | Partly Sunny |
| Lo: 55°FLo: 13°C | Hi: 79°FHi: 26°C | Lo: 59°FLo: 15°C | Hi: 81°FHi: 27°C | Lo: 61°FLo: 16°C | Hi: 85°FHi: 29°C | Lo: 65°FLo: 18°C | Hi: 85°FHi: 29°C | Lo: 69°FLo: 21°C | Hi: 81°FHi: 27°C | Lo: 69°FLo: 21°C | Hi: 85°FHi: 29°C |
POP = Probability of Precipitation.
Weather Outlook Updated: 1145 PM EDT Mon Sep 14 2026 

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Issued: 100 AM EDT Tue Sep 15 2026
Key Messages
1) Mainly dry with seasonable temperatures and significantly lower humidity through Wednesday. Temperatures warm back above normal late in the week as an upper ridge builds back into the region.
Discussion
... As of 740 PM EDT Monday...
KEY MESSAGE 1...Mainly dry with seasonable temperatures and significantly lower humidity through Wednesday. Temperatures warm back above normal late in the week as an upper ridge builds back into the region.
The latest surface analysis depicted a large (~...
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