10-Day Weather Forecast - Groton, CT

Patchy fog in the morning. Mostly cloudy with a chance of showers and thunderstorms in the morning then mostly sunny with a slight chance of showers and thunderstorms in the afternoon. Humid with highs in the lower 80s. Southwest winds around 5 mph. Chance of rain 50 percent.

Partly cloudy in the evening then becoming mostly cloudy. Patchy fog after midnight. Humid with lows around 70. Southwest winds around 5 mph.

Partly sunny. Patchy fog in the morning. A slight chance of showers and thunderstorms in the afternoon. Humid with highs in the mid 80s. Southwest winds 5 to 10 mph. Chance of rain 20 percent. Heat index values in the upper 90s in the afternoon.

Mostly cloudy. A chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 30 percent.

Mostly cloudy in the morning then becoming partly sunny. A chance of showers and thunderstorms. Highs in the upper 80s. Chance of rain 30 percent. Heat index values in the upper 90s in the afternoon.

Partly cloudy. A chance of showers and thunderstorms in the evening. Lows in the mid 70s. Chance of rain 30 percent.

Partly sunny. A chance of showers and thunderstorms in the afternoon. Highs in the upper 80s. Chance of rain 30 percent. Heat index values up to 100.

Mostly cloudy with a chance of showers and thunderstorms in the evening then partly cloudy after midnight. Lows in the upper 60s. Chance of rain 30 percent.

Mostly sunny. Highs in the lower 80s.

Partly cloudy. Lows in the upper 60s.

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

Mostly cloudy. A chance of showers and thunderstorms in the evening then a chance of showers after midnight. Lows in the upper 60s. Chance of rain 30 percent.

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

Mostly clear with a slight chance of rain. Chance of precipitation 30%. Low temperature around 66F. Dew point will be around 66F with an average humidity of 93%. Winds will be 2 mph from the SW.

Sunny. High temperature around 73F. Dew point will be around 66F with an average humidity of 86%. Winds will be 3 mph from the S.

Clear. Low temperature around 67F. Dew point will be around 66F with an average humidity of 92%. Winds will be 3 mph from the S.

Sunny. High temperature around 75F. Dew point will be around 68F with an average humidity of 88%. Winds will be 5 mph from the S.

Mostly clear. Low temperature around 70F. Dew point will be around 69F with an average humidity of 91%. Winds will be 4 mph from the S.