Today in Herndon, the weather will deteriorate, becoming increasingly unstable.
Overcast skies with storms likely in the morning, storms gradually improving in the afternoon. Persistent drizzle in the morning, showers in the afternoon. Light winds.
The reliability of the situation is very good.
Temperatures will vary between 19 and 23°C.
Tonight, clear spells, risk of mist forming.
Chance of light rain. Light winds.