Weather forecast for: Portsmouth OH
Last Update: 5:02 am EDT Sep 16, 2026
Today: Sunny, with a high near 93. Heat index values as high as 100. Calm wind.
Tonight: A slight chance of showers and thunderstorms before 9pm. Partly cloudy, with a low around 70. Calm wind. Chance of precipitation is 20%.
Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 11am. Mostly sunny, with a high near 92. Heat index values as high as 100. Calm wind becoming west around 5 mph in the afternoon. Chance of precipitation is 30%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday Night: A slight chance of showers and thunderstorms, then a chance of showers after 11pm. Mostly cloudy, with a low around 69. Calm wind. Chance of precipitation is 40%.
Friday: A chance of showers before 8am. Mostly sunny, with a high near 84. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 30%.
Friday Night: Mostly clear, with a low around 62.
Saturday: Sunny, with a high near 88.
Saturday Night: A chance of showers and thunderstorms. Mostly cloudy, with a low around 68. Chance of precipitation is 40%.
Sunday: A chance of showers, with thunderstorms also possible after 2pm. Partly sunny, with a high near 88. Chance of precipitation is 50%.
Sunday Night: A chance of showers and thunderstorms before 8pm, then a chance of showers between 8pm and 2am. Mostly cloudy, with a low around 66. Chance of precipitation is 30%.
Monday: A chance of showers. Partly sunny, with a high near 85. Chance of precipitation is 30%.
Monday Night: A chance of showers. Mostly cloudy, with a low around 65. Chance of precipitation is 40%.
Tuesday: A chance of showers. Partly sunny, with a high near 83. Chance of precipitation is 40%.
WeatherWorld.com
City of Portsmouth, Ohio
