Johnston, RI Weather Forecast for 5-Days

Updated: Mon Feb 16th 2026 9:15 PM EST

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Johnston, RI Weather – 2-16 – Partly Cloudy
38° / 26°
Partly Cloudy
In Johnston, skies will be cloudy with highs near 38°F and lows around 26°F. Winds will be light at 9mph and gusts of 7.5mph at 10 PM. The humidity will be on the higher side, averaging about 79%, the maximum being 91% at 11 PM and 90% being its lowest at 10 PM. Barometric pressure is its highest of 30.19inHg at 10 PM, a lowest point of 30.19inHg at 10 PM with an avg 30.19inHg.
Johnston, RI Weather – 2-17 – Mist
35° / 28°

Weather Tomorrow

Mist
In Johnston, mist is likely with a high near 35°F and a low around 28°F. Winds will be light at 9mph and gusts of 14.1mph at 11 PM. High humidity with average of 93% is anticipated, the maximum being 97% at 7 AM and 89% being its lowest at 11 AM. Barometric pressure is its highest of 30.17inHg at 12 AM, a lowest point of 30.04inHg at 10 PM with an avg 30.11inHg.
Johnston, RI Weather – 2-18 – Moderate Rain
37° / 32°
Moderate Rain
Johnston may see rain showers, with daytime highs of 37°F and overnight lows near 32°F. The chance of rain is 84% with an estimated 0.73in. Snow is likely with a 19% chance with an estimated 4.4in. Winds will be light at 9mph and gusts of 13.1mph at 12 AM. High humidity with average of 91% is anticipated, the maximum being 98% at 5 PM and 83% being its lowest at 2 PM. Barometric pressure is its highest of 30.02inHg at 12 AM, a lowest point of 29.75inHg at 8 PM with an avg 29.89inHg.
Johnston, RI Weather – 2-19 – Moderate Or Heavy Snow Showers
42° / 27°
Moderate Or Heavy Snow Showers
Moderate Or Heavy Snow Showers are in the forecast for Johnston, with a high of 42°F and a low of 27°F. The chance of rain is 83% with an estimated 0.23in. Snow is likely with a 8% chance with an estimated 1.7in. Winds will be light at 7mph and gusts of 9.2mph at 12 AM. The humidity will be on the higher side, averaging about 74%, the maximum being 97% at 11 PM and 56% being its lowest at 2 PM. Barometric pressure is its highest of 30.08inHg at 10 PM, a lowest point of 29.81inHg at 1 AM with an avg 29.98inHg.
Johnston, RI Weather – 2-20 – Light Drizzle
35° / 27°
Light Drizzle
Johnston may see light Drizzle, with daytime highs of 35°F and overnight lows near 27°F. Rainfall predicted to have a 65% chance with an estimated 0.42in. Snow is likely with a 39% chance. Winds will be light at 9mph and gusts of 13.1mph at 4 PM. High humidity with average of 94% is anticipated, the maximum being 99% at 11 PM and 85% being its lowest at 9 AM. Barometric pressure is its highest of 30.07inHg at 1 AM, a lowest point of 29.77inHg at 10 PM with an avg 29.92inHg.
Johnston, RI Weather – 2-21 – Freezing Fog
36° / 31°
Freezing Fog
Johnston could see freezing Fog with daytime highs of 36°F and nighttime lows near 31°F. The chance of rain is 77% with an estimated 0.04in. Snow is likely with a 21% chance with an estimated 0.1in. Winds will be light at 9mph and gusts of 11.8mph at 12 AM. High humidity with average of 97% is anticipated, the maximum being 99% at 7 PM and 91% being its lowest at 1 PM. Barometric pressure is its highest of 30.07inHg at 11 PM, a lowest point of 29.8inHg at 12 AM with an avg 29.96inHg.

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