Greenwich, CT Weather Tomorrow

Planning ahead? View tomorrow's Greenwich weather along with a complete 5 day forecast that includes daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details for the Greenwich area and around Fairfield county, Connecticut.
Updated: Tue Sep 1st 2026 5:45 AM EDT
Greenwich, CT Weather – 9-1 – Moderate Rain
82° / 68°
Moderate Rain
Periods of rain are likely in Greenwich, with a high of 82°F and a low of 68°F. The chance of rain is 90% with an estimated 2.65in. Winds will be strong at speeds peaking at 21mph and gusts of 26.6mph at 9 PM. High humidity with average of 89% is anticipated, the maximum being 96% at 8 PM and 68% being its lowest at 1 PM. Barometric pressure is its highest of 30.04inHg at 10 PM, a lowest point of 29.9inHg at 3 PM with an avg 29.96inHg.
Greenwich, CT Weather – 9-2 – Scattered Showers
72° / 67°

Weather Tomorrow

Scattered Showers
Daytime highs will reach 72°F with lows dropping to 67°F in Greenwich, where on and off showers are set to occur. The chance of rain is 78% with an estimated 0.09in. Wind will be moderate, blowing around 18mph on average and gusts of 21.5mph at 12 AM. High humidity with average of 84% is anticipated, the maximum being 92% at 12 AM and 74% being its lowest at 3 PM. Barometric pressure is its highest of 30.13inHg at 11 AM, a lowest point of 30.04inHg at 12 AM with an avg 30.09inHg.
Greenwich, CT Weather – 9-3 – Light Rain Shower
85° / 71°
Light Rain Shower
Greenwich is set for rain showers with temperatures peaking at 85°F and dipping to 71°F. The chance of rain is 81% with an estimated 0.19in. Wind will be moderate, blowing around 13mph on average and gusts of 23.1mph at 11 AM. High humidity with average of 83% is anticipated, the maximum being 96% at 7 AM and 62% being its lowest at 4 PM. Barometric pressure is its highest of 30.02inHg at 12 AM, a lowest point of 29.78inHg at 5 PM with an avg 29.89inHg.
Greenwich, CT Weather – 9-4 – Sunny
82° / 71°
Sunny
Daytime highs will reach 82°F with lows dropping to 71°F in Greenwich, where it will be sunny. There's a very small chance of rainfall, only about 7%. Wind will be moderate, blowing around 12mph on average and gusts of 22.1mph at 11 PM. The humidity will be on the higher side, averaging about 66%, the maximum being 86% at 3 AM and 49% being its lowest at 3 PM. Barometric pressure is its highest of 29.88inHg at 10 PM, a lowest point of 29.79inHg at 5 PM with an avg 29.83inHg.
Greenwich, CT Weather – 9-5 – Sunny
72° / 64°
Sunny
Daytime highs will reach 72°F with lows dropping to 64°F in Greenwich, where it will be sunny. There's a moderate 36% chance of rainfall with an estimated 0.02in. Wind will be moderate, blowing around 13mph on average and gusts of 25.1mph at 5 AM. The humidity will be on the higher side, averaging about 63%, the maximum being 73% at 8 AM and 54% being its lowest at 8 PM. Barometric pressure is its highest of 30.06inHg at 11 PM, a lowest point of 29.86inHg at 5 AM with an avg 29.94inHg.
Greenwich, CT Weather – 9-6 – Sunny
74° / 62°
Sunny
Greenwich could see a sunny day with daytime highs of 74°F and nighttime lows near 62°F. There's a very small chance of rainfall, only about 4%. Wind will be moderate, blowing around 12mph on average and gusts of 16.1mph at 8 AM. Humidity levels should be comfortable, sitting around 58% on average, the maximum being 71% at 6 AM and 47% being its lowest at 1 PM. Barometric pressure is its highest of 30.17inHg at 11 AM, a lowest point of 30.07inHg at 12 AM with an avg 30.14inHg.

Currently

Moderate Rain 70°F
29.99 inHg.
Barometer
93%
Humidity
SW 9.7 mph
Wind
Moderate Rain

5 Day Forecast Nearby

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