Marine Weather Net

Williamsburg, VA Weather Forecast


Marine Forecast: James River


Williamsburg, Virginia

 Lat: 37.27N, Lon: 76.71W

Current Conditions Updated: 815 AM EDT TUE AUG 18 2026

Clear


Temp: 78°F
  • Humidity:
  • 95%
  • Winds:
  • 6 MPH N
  • Gusts:
  • N/A MPH
  • Barometer:
  • 29.86 in.
  • Dewpoint:
  • 77°F
  • Heat index:
  • 82°F

  • Sunrise:
  • 6:24 AM EDT
  • Sunset:
  • 7:53 PM EDT
  • Moonrise:
  • 12:45 PM EDT
  • Moonset:
  • 10:51 PM EDT

TONIGHT

CHANCE OF SHOWERS
Lo: 75°F
Precip: 30%

TUESDAY

PARTLY SUNNY
Hi: 90°F
Lo: 75°F

WEDNESDAY

MOSTLY SUNNY
Hi: 91°F
Lo: 75°F

THURSDAY

MOSTLY SUNNY
Hi: 91°F
Lo: 71°F
Precip: 70%
Weather Forecast In Detail:
Forecast Issued: 1145 PM EDT Mon Aug 17 2026

Rest Of Tonight...Mostly cloudy. Scattered showers late this evening, then isolated showers. Lows in the mid 70s. Southeast winds around 5 mph, becoming northwest. Chance of rain 30 percent.
Tuesday...Partly sunny. Humid with highs around 90. North winds around 5 mph. Heat index values up to 100.
Tuesday Night...Mostly clear in the evening, then becoming partly cloudy. Humid with lows in the lower 70s. East winds around 5 mph, becoming north after midnight.
Wednesday...Mostly sunny. Highs in the lower 90s. North winds around 5 mph.
Wednesday Night...Mostly clear. Humid with lows in the lower 70s. South winds around 5 mph.
Thursday...Mostly sunny in the morning, then mostly cloudy with showers likely with a chance of thunderstorms in the afternoon. Highs in the lower 90s. Chance of rain 70 percent.
Thursday Night...A chance of thunderstorms. Showers likely. Lows in the lower 70s. Chance of rain 70 percent.
Friday...Mostly cloudy. Showers likely with a chance of thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 70 percent.
Friday Night...Showers with a chance of thunderstorms. Lows around 70. Chance of rain 80 percent.
Saturday...Mostly cloudy. A chance of showers in the morning, then showers likely in the afternoon. Highs in the mid 80s. Chance of rain 70 percent.
Saturday Night...Mostly cloudy in the evening, then becoming partly cloudy. Showers likely, mainly in the evening. Lows around 70. Chance of rain 70 percent.
Sunday...Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the mid 80s. Chance of rain 40 percent.
Sunday Night...Partly cloudy with a chance of showers and thunderstorms in the evening, then mostly clear after midnight. Lows in the upper 60s. Chance of rain 40 percent.
Monday...Mostly sunny. Highs in the mid 80s.
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