Onway Lake Weather Forecast

    • 68
    • 86

    Isolated Thunderstorms

    • 65
    • 87

    Mostly Sunny

    • 67
    • 88

    Partly Sunny

    • 62
    • 86

    Slight Chance Rain Showers

    • 61
    • 82

    Slight Chance Thunderstorms

    • 59
    • 82

    Chance Rain Showers

Today 8 Aug Interior Rockingham

Mostly cloudy in the Morning, then becoming partly sunny. Patchy fog in the morning. A chance of Showers. Scattered Thunderstorms in the afternoon. Warm with Highs in the mid 80s. Light and variable Winds. Chance of rain 50 percent. Heat index Values in the lower 90s in the afternoon.

Tonight 8 Aug Interior Rockingham

Mostly cloudy with isolated Showers. Lows in the lower 70s. Light and variable Winds. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Onway Lake Temperature Statistics

August Temperature

Manchester Airport (13 miles)

  • Lowest 4 August, 2026

    58.6 °F

  • Average August

    74.7 °F

  • Highest 1 August, 2026

    88.6 °F

Climate (2021–2026)

Manchester Airport (13 miles)

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  • Average Low 2021–2026

    42 °F

  • Average 2021–2026

    52 °F

  • Average High 2021–2026

    61.9 °F
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