10-Day Weather Forecast - Groton, CT

Periods of showers with a slight chance of thunderstorms this morning then periods of showers with a chance of thunderstorms this afternoon. Locally heavy rainfall possible. Highs in the lower 70s. East winds 10 to 15 mph with gusts up to 30 mph. Chance of rain near 100 percent.

Showers with a chance of thunderstorms in the evening then showers after midnight. Lows in the lower 60s. East winds 10 to 15 mph with gusts up to 30 mph. Chance of rain near 100 percent.

Mostly cloudy. Showers likely mainly in the morning. Humid with highs in the mid 70s. Northeast winds 10 to 15 mph with gusts up to 25 mph. Chance of rain 70 percent.

Mostly cloudy with a 30 percent chance of showers. Lows around 60. North winds 5 to 10 mph. Gusts up to 20 mph in the evening.

Mostly sunny. Highs in the lower 80s. North winds around 5 mph becoming southwest in the afternoon.

Mostly clear. Lows in the mid 60s.

Mostly sunny. Highs in the mid 80s. Heat index values in the mid 90s in the afternoon.

Partly cloudy. Lows in the upper 60s.

Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 50 percent. Heat index values up to 100.

Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the upper 60s. Chance of rain 50 percent.

Partly sunny. A chance of showers in the afternoon. Highs in the mid 80s. Chance of rain 30 percent.

Partly cloudy. A chance of showers in the evening. Lows in the mid 60s. Chance of rain 30 percent.

Mostly sunny. Highs in the mid 80s.

Mostly clear with a slight chance of rain. Chance of precipitation 25%. Low temperature around 67F. Dew point will be around 63F with an average humidity of 81%. Winds will be 3 mph from the S.

Partly cloudy with a slight chance of rain. Chance of precipitation 25%. High temperature around 78F. Dew point will be around 67F with an average humidity of 79%. Winds will be 3 mph from the S.

Partly cloudy with a chance of rain. Chance of precipitation 35%. Low temperature around 70F. Dew point will be around 66F with an average humidity of 84%. Winds will be 4 mph from the S.

Mostly sunny with a slight chance of rain. Chance of precipitation 25%. High temperature around 81F. Dew point will be around 69F with an average humidity of 78%. Winds will be 3 mph from the SW.

Clear. Low temperature around 70F. Dew point will be around 66F with an average humidity of 81%. Winds will be 4 mph from the SW.