Jamestown, RI Weather Tomorrow

Get tomorrow's weather for Jamestown plus an extended 5 day forecast providing daily precipitation forecasts, changing sky conditions, daytime highs, overnight lows, Fahrenheit and Celsius temperatures, sunrise, sunset, wind chill, and local wind details for the Jamestown area and around Newport county, Rhode Island.
Updated: Sun Sep 6th 2026 4:30 AM EDT
Jamestown, RI Weather – 9-6 – Scattered Showers
68° / 61°
Scattered Showers
In Jamestown, showers likely at times with highs near 68°F and lows around 61°F. Rainfall predicted to have a 73% chance with an estimated 0.14in. Wind will be moderate, blowing around 12mph on average and gusts of 21.7mph at 11 PM. The humidity will be on the higher side, averaging about 74%, the maximum being 91% at 5 AM and 53% being its lowest at 2 PM. Barometric pressure is its highest of 30.01inHg at 11 AM, a lowest point of 29.92inHg at 5 AM with an avg 29.98inHg.
Jamestown, RI Weather – 9-7 – Sunny
76° / 57°

Weather Tomorrow

Sunny
Bright and sunny conditions in Jamestown, with a high of 76°F and a low of 57°F. There's a very small chance of rainfall, only about 3%. Wind will be moderate, blowing around 12mph on average and gusts of 21.3mph at 12 AM. Humidity levels should be comfortable, sitting around 58% on average, the maximum being 75% at 6 AM and 36% being its lowest at 3 PM. Barometric pressure is its highest of 30.13inHg at 10 PM, a lowest point of 30.01inHg at 12 AM with an avg 30.07inHg.
Jamestown, RI Weather – 9-8 – Overcast
78° / 63°
Overcast
Jamestown could see overcast with daytime highs of 78°F and nighttime lows near 63°F. There's a very small chance of rainfall, only about 10%. Wind will be moderate, blowing around 11mph on average and gusts of 15.5mph at 5 AM. The humidity will be on the higher side, averaging about 64%, the maximum being 89% at 11 PM and 46% being its lowest at 12 PM. Barometric pressure is its highest of 30.22inHg at 10 PM, a lowest point of 30.12inHg at 12 AM with an avg 30.17inHg.
Jamestown, RI Weather – 9-9 – Overcast
74° / 65°
Overcast
Overcast is in the forecast for Jamestown, with a high of 74°F and a low of 65°F. There's a moderate 29% chance of rainfall with an estimated 0in. Winds will be strong at speeds peaking at 21mph and gusts of 37.9mph at 11 PM. High humidity with average of 85% is anticipated, the maximum being 94% at 6 AM and 67% being its lowest at 12 PM. Barometric pressure is its highest of 30.22inHg at 12 AM, a lowest point of 29.89inHg at 11 PM with an avg 30.12inHg.
Jamestown, RI Weather – 9-10 – Overcast
76° / 63°
Overcast
It will be overcast in Jamestown, with a high of 76°F and a low of 63°F. There's a moderate 44% chance of rainfall with an estimated 0.02in. Winds will be strong at speeds peaking at 23mph and gusts of 43.8mph at 2 AM. The humidity will be on the higher side, averaging about 73%, the maximum being 89% at 5 AM and 46% being its lowest at 2 PM. Barometric pressure is its highest of 29.94inHg at 1 AM, a lowest point of 29.71inHg at 2 PM with an avg 29.81inHg.
Jamestown, RI Weather – 9-11 – Sunny
70° / 57°
Sunny
Daytime highs will reach 70°F with lows dropping to 57°F in Jamestown, where bright and sunny conditions. There's a very small chance of rainfall, only about 5%. Wind will be moderate, blowing around 13mph on average and gusts of 23.7mph at 8 PM. Humidity levels should be comfortable, sitting around 50% on average, the maximum being 75% at 2 AM and 28% being its lowest at 2 PM. Barometric pressure is its highest of 29.97inHg at 11 PM, a lowest point of 29.82inHg at 2 PM with an avg 29.86inHg.

Currently

Patchy Rain Nearby 61°F
29.92 inHg.
Barometer
91%
Humidity
NNE 10.8 mph
Wind
Patchy Rain Nearby

5 Day Forecast Nearby

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