Portsmouth Weather Forecast

    • 24
    • 36

    Snow Showers

    • 34
    • 47

    Partly Sunny

    • 39
    • 59

    Chance Rain

    • 43
    • 55

    Chance Rain

    • 33
    • 67

    Chance Rain

    • 29
    • 43

    Chance Snow

Today 28 Mar Coastal Rockingham

Partly sunny. Highs in the upper 30s. North Winds around 10 Mph this Morning, becoming light and variable.

Tonight 28 Mar Coastal Rockingham

Partly cloudy with isolated snow Showers this Evening, then mostly clear after midnight. Lows in the mid 20s. Light and variable Winds. Chance of snow 20 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Portsmouth Temperature Statistics

March Temperature

Pease Air Force Base / Portsmouth (3.1 miles)

  • Lowest 2 March, 2026

    7.9 °F

  • Average March

    37.8 °F

  • Highest 10 March, 2026

    72.7 °F

Climate (2021–Present)

Pease Air Force Base / Portsmouth (3.1 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    59.1 °F
Get WillyWeather+ to remove ads