Foster Weather Forecast

    • 74
    • 101

    Hot

    • 72
    • 101

    Slight Chance Thunderstorms

    • 73
    • 99

    Hot

    • 74
    • 100

    Hot

    • 71
    • 100

    Chance Thunderstorms

    • 67
    • 93

    Chance Rain Showers

    • 67
    • 93

    Slight Chance Thunderstorms

Today 5 Sep Bates

Mostly sunny. Hot with Highs around 100. South Winds around 5 Mph. Heat index Values up to 106.

Tonight 5 Sep Bates

Partly cloudy this Evening, then clearing. Lows in the lower 70s. Southeast Winds around 5 Mph this Evening, becoming light and variable. Heat index Values up to 105 early this evening.

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Foster Temperature Statistics

September Temperature

Clinton, MO (46 miles)

  • Lowest 1 September, 2026

    75.2 °F

  • Average September

    87.4 °F

  • Highest 1 September, 2026

    100.4 °F

Climate (2021–2026)

Clinton, MO (46 miles)

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  • Average Low 2021–2026

    46.9 °F

  • Average 2021–2026

    57.8 °F

  • Average High 2021–2026

    68.7 °F
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