Foster Weather Forecast

    • 70
    • 80

    Chance Rain Showers

    • 68
    • 89

    Thunderstorms Likely

    • 64
    • 77

    Rain Showers Likely

    • 64
    • 81

    Partly Sunny

    • 67
    • 83

    Slight Chance Thunderstorms

    • 69
    • 87

    Slight Chance Thunderstorms

    • 68
    • 87

    Chance Thunderstorms

Today 21 Jul Big Stone

Partly sunny with a 20 percent chance of Thunderstorms. Near steady temperature in the mid 70s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 21 Jul Big Stone

Mostly cloudy. A chance of Showers with a slight chance of Thunderstorms. Lows around 70. Southeast Winds 5 to 10 Mph. Chance of rain 30 percent.

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  • Temperature Forecast NOAA

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Foster Temperature Statistics

July Temperature

Ortonville, Ortonville Muncipal-Martinson Field Airport (14.3 miles)

  • Lowest 17 July, 2025

    53.6 °F

  • Average July

    71.9 °F

  • Highest 3 July, 2025

    89.6 °F

Climate (2020–Present)

Ortonville, Ortonville Muncipal-Martinson Field Airport (14.3 miles)

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  • Average Low 2020–2025

    35.7 °F

  • Average 2020–2025

    45.2 °F

  • Average High 2020–2025

    54.9 °F
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