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: Fri Oct 16th 2026 11:15 AM EDT
Greenwich, CT Weather – 10-16 – Scattered Showers
72° / 59°
Scattered Showers
Greenwich is set for passing showers with temperatures peaking at 72°F and dipping to 59°F. The chance of rain is 79% with an estimated 0.16in. Wind will be moderate, blowing around 19mph on average and gusts of 31.6mph at 8 PM. High humidity with average of 82% is anticipated, the maximum being 92% at 12 PM and 77% being its lowest at 5 PM. Barometric pressure is its highest of 29.81inHg at 12 PM, a lowest point of 29.65inHg at 6 PM with an avg 29.72inHg.
Greenwich, CT Weather – 10-17 – Overcast
59° / 45°

Weather Tomorrow

Overcast
Cloud-filled skies are in the forecast for Greenwich, with a high of 59°F and a low of 45°F. Rainfall predicted to have a 58% chance with an estimated 0.06in. Winds will be strong at speeds peaking at 21mph and gusts of 32.5mph at 12 AM. Humidity levels should be comfortable, sitting around 59% on average, the maximum being 80% at 4 AM and 39% being its lowest at 5 PM. Barometric pressure is its highest of 30.38inHg at 11 PM, a lowest point of 29.8inHg at 12 AM with an avg 30.12inHg.
Greenwich, CT Weather – 10-18 – Sunny
56° / 41°
Sunny
A sunny day is in the forecast for Greenwich, with a high of 56°F and a low of 41°F. There's a very small chance of rainfall, only about 4%. Wind will be moderate, blowing around 20mph on average and gusts of 29.3mph at 4 AM. Humidity levels should be comfortable, sitting around 47% on average, the maximum being 62% at 11 PM and 36% being its lowest at 2 PM. Barometric pressure is its highest of 30.57inHg at 11 AM, a lowest point of 30.39inHg at 12 AM with an avg 30.49inHg.
Greenwich, CT Weather – 10-19 – Overcast
56° / 47°
Overcast
Daytime highs will reach 56°F with lows dropping to 47°F in Greenwich, where it will be overcast. The chance of rain is 79% with an estimated 0.28in. Winds will be strong at speeds peaking at 25mph and gusts of 35.3mph at 9 PM. The humidity will be on the higher side, averaging about 73%, the maximum being 84% at 8 PM and 63% being its lowest at 3 PM. Barometric pressure is its highest of 30.48inHg at 12 AM, a lowest point of 30.16inHg at 11 PM with an avg 30.32inHg.
Greenwich, CT Weather – 10-20 – Smoky Haze
64° / 51°
Smoky Haze
Highs will reach 64°F with lows near 51°F in Greenwich, where smoky Haze is. Rainfall predicted to have a 57% chance with an estimated 0.05in. Wind will be moderate, blowing around 20mph on average and gusts of 36.2mph at 6 AM. The humidity will be on the higher side, averaging about 61%, the maximum being 82% at 12 AM and 42% being its lowest at 2 PM. Barometric pressure is its highest of 30.27inHg at 11 PM, a lowest point of 30.12inHg at 6 AM with an avg 30.17inHg.
Greenwich, CT Weather – 10-21 – Sunny
57° / 49°
Sunny
In Greenwich, bright and sunny conditions with highs near 57°F and lows around 49°F. There's a very small chance of rainfall, only about 4%. Wind will be moderate, blowing around 19mph on average and gusts of 32mph at 1 AM. The humidity will be on the higher side, averaging about 61%, the maximum being 72% at 11 PM and 47% being its lowest at 2 PM. Barometric pressure is its highest of 30.42inHg at 11 PM, a lowest point of 30.27inHg at 12 AM with an avg 30.35inHg.

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