Cornwall, CT Weather Forecast
Local 7-day forecast
Slight Chance Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Cornwall, CT in one place.
A slight chance of rain showers. Mostly cloudy, with a high near 73.
Local Weather Overview
This forecast page for Cornwall, 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: Apr 10, 2026 3:18 AM EDT.
The active forecast window currently covers Apr 13 to Apr 16, 2026 for Cornwall, CT.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 13 to Apr 16, 2026
- Latest sync
- Apr 10, 2026 3:18 AM EDT
- Forecast office
- ALY
- Source
- NOAA / NWS
Daily Outlook
This Week in Cornwall
Wednesday looks like the warmest upcoming period in Cornwall at 82 degrees F.
Monday Night is the coolest period ahead with temperatures near 56 degrees F.
The strongest winds are forecast for Monday at about 7 to 10 mph SW.
Precipitation is mentioned in 7 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 10, 2026 3:18 AM EDT
- Coverage
- 4 days
- Time zone
- America/New_York
- Forecast office
- ALY
- Radar station
- KENX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A slight chance of rain showers before 2am. Mostly cloudy, with a low around 56.
A slight chance of rain showers after 2pm. Partly sunny, with a high near 79.
A slight chance of rain showers. Mostly cloudy, with a low around 60.
A chance of rain showers. Mostly cloudy, with a high near 82. Chance of precipitation is 30%.
A chance of rain showers before 8pm, then a chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 30%.
A slight chance of rain showers. Partly sunny, with a high near 76.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Apr 13
|
Slight Chance Rain Showers
|
73°F |
7 to 10 mph
SW
|
|
Monday Night
Apr 13
|
Slight Chance Rain Showers
|
56°F |
3 to 8 mph
SW
|
|
Tuesday
Apr 14
|
Partly Sunny then Slight Chance Rain Showers
|
79°F |
2 to 7 mph
SW
|
|
Tuesday Night
Apr 14
|
Slight Chance Rain Showers
|
60°F |
2 to 6 mph
SW
|
|
Wednesday
Apr 15
|
Chance Rain Showers
|
82°F |
2 to 7 mph
SW
|
|
Wednesday Night
Apr 15
|
Chance Showers And Thunderstorms
|
58°F |
6 mph
S
|
|
Thursday
Apr 16
|
Slight Chance Rain Showers
|
76°F |
3 to 8 mph
SW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Cornwall.
