New Hampshire Motor Speedway Weather Forecast

    • 50
    • 67

    Slight Chance Rain

    • 50
    • 71

    Mostly Cloudy

    • 61
    • 77

    Partly Sunny

    • 50
    • 75

    Mostly Cloudy

    • 45
    • 67

    Chance Rain Showers

    • 45
    • 63

    Chance Rain Showers

Today 29 Sep Merrimack

Partly sunny. A slight chance of rain in the morning. Highs in the mid 60s. Light and variable Winds. Chance of rain 20 percent.

Tonight 29 Sep Merrimack

Partly cloudy. Patchy fog after midnight. Lows in the lower 50s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

New Hampshire Motor Speedway Temperature Statistics

September Temperature

Concord Municipal Airport (10.6 miles)

  • Lowest 23 September, 2026

    36.6 °F

  • Average September

    62.1 °F

  • Highest 10 September, 2026

    86.6 °F

Climate (2021–2026)

Concord Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    38.1 °F

  • Average 2021–2026

    49.1 °F

  • Average High 2021–2026

    60.2 °F
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