New Hampshire Motor Speedway Weather Forecast

    • 36
    • 48

    Rain

    • 32
    • 61

    Rain Likely

    • 31
    • 40

    Rain/Freezing Rain Likely

    • 45
    • 61

    Chance Rain

    • 37
    • 61

    Chance Rain

    • 38
    • 60

    Chance Rain

Today 31 Mar Merrimack

Cloudy. Rain this Morning, then a chance of rain with a slight chance of Thunderstorms this afternoon. Highs around 50. Light and variable Winds. Chance of rain 90 percent.

Tonight 31 Mar Merrimack

Rain with a slight chance of Thunderstorms in the Evening, then rain likely after midnight. Lows in the mid 30s. Light and variable Winds, becoming southeast around 10 Mph after midnight. Chance of rain 90 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

New Hampshire Motor Speedway Temperature Statistics

March Temperature

Concord Municipal Airport (10.6 miles)

  • Lowest 3 March, 2026

    -0.3 °F

  • Average March

    35.8 °F

  • Highest 10 March, 2026

    72.6 °F

Climate (2021–Present)

Concord Municipal Airport (10.6 miles)

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  • Average Low 2021–2026

    38.3 °F

  • Average 2021–2026

    49.1 °F

  • Average High 2021–2026

    60 °F
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