Thornhill, VA Weather Forecast

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Thornhill, VA Weather Forecast

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Thornhill VA weather  - Clear - 44°F
Clear
44°F
Updated 11:47 pm
Feels Like 48°F
Humidity 100%
Wind N 0 mph
Barometer  30.11 in
Dew Point 44°F
Thornhill VA weather  - Clear - 7°C
Clear
7°C
Updated 11:47 pm
Feels Like 9°C
Humidity 100%
Wind N 0 km/h
Barometer  101.9 kPa
Dew Point 7°C

Thornhill Weather Forecast

TONIGHT WEDNESDAY WEDNESDAY NIGHT THURSDAY THURSDAY NIGHT FRIDAY FRIDAY NIGHT SATURDAY SATURDAY NIGHT SUNDAY SUNDAY NIGHT COLUMBUS DAY
Thornhill, VA Weather - Tonight Patchy Fog Thornhill, VA Weather - Wednesday Sunny Thornhill, VA Weather - Wednesday Night Clear Thornhill, VA Weather - Thursday Sunny Thornhill, VA Weather - Thursday Night Mostly Clear Thornhill, VA Weather - Friday Sunny Thornhill, VA Weather - Friday Night Partly Cloudy Thornhill, VA Weather - Saturday Mostly Sunny Thornhill, VA Weather - Saturday Night Mostly Cloudy Thornhill, VA Weather - Sunday Showers Thornhill, VA Weather - Sunday Night Showers Thornhill, VA Weather - Columbus Day Chance Of Showers
Patchy Fog Sunny Clear Sunny Mostly Clear Sunny Partly Cloudy Mostly Sunny Mostly Cloudy Showers Showers Chance of Showers
Lo: 41°FLo: 5°C Hi: 71°FHi: 22°C
Lo: 51°FLo: 11°C Hi: 80°FHi: 27°C
Lo: 51°FLo: 11°C Hi: 71°FHi: 22°C
Lo: 50°FLo: 10°C Hi: 71°FHi: 22°C
Lo: 55°FLo: 13°C Hi: 65°FHi: 18°C
Lo: 59°FLo: 15°C Hi: 71°FHi: 22°C
POP: 60% POP: 60% POP: 50%
POP = Probability of Precipitation.
Weather Outlook Updated: 756 PM EDT Tue Oct 06 2026 Thornhill, VA Weather - WeatherWorld.com

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Thornhill Forecast Discussion

Meteorlogic Glosserator
Instant definitions for any meteorological term.

Issued: 836 PM EDT Tue Oct 6 2026

Key Messages

  • 1) Quiet weather conditions are expected through the end of the week.
  • 2) Increased rain potential late this weekend into early next week.

Discussion

... KEY MESSAGE 1...Quiet weather conditions are expected through the end of the week.

High pressure will shift offshore tonight allowing for a slightly warmer night as winds become slightly elevated. However, many locations will still be in the lower to mid 40s, with some upper 30s possible in the more sheltered valleys given the dry natur...