South Lyme, CT Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for South Lyme, CT in one place.
Sunny. High near 77, with temperatures falling to around 74 in the afternoon. Southwest wind 8 to 13 mph.
Local Weather Overview
This forecast page for South Lyme, CT is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jun 8, 2026 11:56 PM EDT.
The active forecast window currently covers Jun 9 to Jun 15, 2026 for South Lyme, CT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jun 9 to Jun 15, 2026
- Latest sync
- Jun 8, 2026 11:56 PM EDT
- Forecast office
- OKX
- Source
- NOAA / NWS
Daily Outlook
This Week in South Lyme
Sunday looks like the warmest upcoming period in South Lyme at 87 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 62 degrees F.
The strongest winds are forecast for Tuesday at about 8 to 13 mph SW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 8, 2026 11:56 PM EDT
- Coverage
- 7 days
- Time zone
- America/New_York
- Forecast office
- OKX
- Radar station
- KOKX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Partly cloudy, with a low around 62. Southwest wind 8 to 13 mph.
Rain showers likely after 8am. Mostly cloudy. High near 79, with temperatures falling to around 76 in the afternoon. Southwest wind 8 to 12 mph. Chance of precipitation is 70%. New rainfall amounts less than a tenth of an inch possible.
Rain showers likely before 8pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 65. Southwest wind 6 to 10 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of rain showers before 8am, then a chance of showers and thunderstorms. Partly sunny. High near 86, with temperatures falling to around 83 in the afternoon. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 2am. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Partly sunny, with a high near 86.
A chance of showers and thunderstorms after 8pm. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
A slight chance of rain showers before 2pm. Partly sunny, with a high near 86.
Partly cloudy, with a low around 66.
Mostly sunny, with a high near 87.
A chance of rain showers after 8pm. Partly cloudy, with a low around 66. Chance of precipitation is 30%.
A chance of rain showers. Partly sunny, with a high near 84.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 9
|
Sunny
|
77°F |
8 to 13 mph
SW
|
|
Tuesday Night
Jun 9
|
Partly Cloudy
|
62°F |
8 to 13 mph
SW
|
|
Wednesday
Jun 10
|
Rain Showers Likely
|
79°F |
8 to 12 mph
SW
|
|
Wednesday Night
Jun 10
|
Showers And Thunderstorms Likely
|
65°F |
6 to 10 mph
SW
|
|
Thursday
Jun 11
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
86°F |
8 mph
W
|
|
Thursday Night
Jun 11
|
Chance Showers And Thunderstorms
|
68°F |
3 to 7 mph
W
|
|
Friday
Jun 12
|
Partly Sunny
|
86°F |
3 to 7 mph
E
|
|
Friday Night
Jun 12
|
Chance Showers And Thunderstorms
|
65°F |
3 to 7 mph
SE
|
|
Saturday
Jun 13
|
Slight Chance Rain Showers
|
86°F |
6 mph
SE
|
|
Saturday Night
Jun 13
|
Partly Cloudy
|
66°F |
1 to 6 mph
SW
|
|
Sunday
Jun 14
|
Mostly Sunny
|
87°F |
1 to 8 mph
SW
|
|
Sunday Night
Jun 14
|
Chance Rain Showers
|
66°F |
3 to 8 mph
W
|
|
Monday
Jun 15
|
Chance Rain Showers
|
84°F |
3 to 7 mph
E
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around South Lyme.