Stratham Weather Forecast

    • 71
    • 92

    Decreasing Clouds

    • 50
    • 88

    Chance Rain Showers

    • 44
    • 65

    Mostly Sunny

    • 46
    • 66

    Mostly Cloudy

    • 45
    • 60

    Chance Rain Showers

    • 46
    • 61

    Chance Rain Showers

Today 19 May Interior Rockingham

Partly sunny. A slight chance of Showers with isolated Thunderstorms in the afternoon. Hot with Highs in the lower 90s. West Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 20 percent.

Tonight 19 May Interior Rockingham

Partly cloudy in the Evening, then clearing. Lows around 70. Southwest Winds around 10 Mph with Gusts up to 20 Mph. Heat index Values around 90 early in the evening.

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Stratham Temperature Statistics

May Temperature

Pease Air Force Base / Portsmouth (6.2 miles)

  • Lowest 9 May, 2026

    38.1 °F

  • Average May

    55.1 °F

  • Highest 5 May, 2026

    80.4 °F

Climate (2021–Present)

Pease Air Force Base / Portsmouth (6.2 miles)

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  • Average Low 2021–2026

    42.3 °F

  • Average 2021–2026

    50.6 °F

  • Average High 2021–2026

    59.1 °F
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