Weather Alert
Merrimack Park Weather Warning NWS WEATHER ALERT FOR THE MERRIMACK PARK, MD AREA - HARD FROST ADVISORY Issued: 150 PM EDT Sun Oct 18 2026 Merrimack Park Weather Warning

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Merrimack Park, MD Weather Forecast

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Merrimack Park, MD Weather Forecast

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Merrimack Park MD weather - Clear - 59°F
Clear
59°F
Updated 2:31 pm
Feels Like 52°F
Humidity 28%
Wind NE 8 mph
Barometer  30.58 in
Dew Point 26°F
Merrimack Park MD weather - Clear - 15°C
Clear
15°C
Updated 2:31 pm
Feels Like 11°C
Humidity 28%
Wind NE 13 km/h
Barometer  103.6 kPa
Dew Point -3°C
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Merrimack Park Weather Forecast

REST OF TODAY TONIGHT MONDAY MONDAY NIGHT TUESDAY TUESDAY NIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT
Merrimack Park, MD Weather - Rest Of Today Sunny Merrimack Park, MD Weather - Tonight Clear Merrimack Park, MD Weather - Monday Sunny Merrimack Park, MD Weather - Monday Night Clearing Merrimack Park, MD Weather - Tuesday Sunny Merrimack Park, MD Weather - Tuesday Night Mostly Clear Merrimack Park, MD Weather - Wednesday Sunny Merrimack Park, MD Weather - Wednesday Night Mostly Clear Merrimack Park, MD Weather - Thursday Sunny Merrimack Park, MD Weather - Thursday Night Mostly Clear Merrimack Park, MD Weather - Friday Sunny Merrimack Park, MD Weather - Friday Night Mostly Clear
Sunny Clear Sunny Clearing Sunny Mostly Clear Sunny Mostly Clear Sunny Mostly Clear Sunny Mostly Clear
Hi: 60°FHi: 16°C
 Lo: 39°FLo: 4°C Hi: 61°FHi: 16°C
 Lo: 45°FLo: 7°C Hi: 65°FHi: 18°C
 Lo: 45°FLo: 7°C Hi: 61°FHi: 16°C
 Lo: 45°FLo: 7°C Hi: 65°FHi: 18°C
 Lo: 49°FLo: 9°C Hi: 61°FHi: 16°C
 Lo: 49°FLo: 9°C
POP = Probability of Precipitation.
Weather Outlook Updated: 1056 AM EDT Sun Oct 18 2026 Merrimack Park, MD Weather - WeatherWorld.com

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Issued: 1013 AM EDT Sun Oct 18 2026

Key Messages

  • 1) Below normal temperatures with frost and freeze concerns continue through Monday morning.
  • 2) Potential for isolated showers and breezy conditions next week as a Nor`easter lurks offshore.

Discussion

... KEY MESSAGE 1...Below normal temperatures with frost and freeze concerns continue through Monday morning.

Surface high pressure settles over the Mid-Atlantic today through Monday with below normal temperatures expected. High temperatures today rise into the 50s to low 60s across the f...