Foster Weather Forecast

    • 70
    • 92

    Mostly Sunny

    • 64
    • 84

    Rain Showers Likely

    • 59
    • 81

    Partly Sunny

    • 59
    • 80

    Mostly Sunny

    • 64
    • 83

    Partly Sunny

    • 66
    • 85

    Chance Rain Showers

Today 30 Jul Warren

Patchy fog this morning. Mostly sunny. Highs in the lower 90s. Light and variable Winds, becoming northeast around 5 Mph this late morning and afternoon. Heat index Values up to 103.

Tonight 30 Jul Warren

Mostly clear. Muggy. Lows around 70. Northeast Winds around 5 Mph.

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Foster Temperature Statistics

July Temperature

Butler County Regional Airport (14.3 miles)

  • Lowest 23 July, 2025

    61.6 °F

  • Average July

    78.8 °F

  • Highest 24 July, 2025

    94.6 °F

Climate (2020–Present)

Butler County Regional Airport (14.3 miles)

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  • Average Low 2020–2025

    44.4 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    66.6 °F
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