Johnston Field Weather Forecast

    • 73
    • 99

    Hot

    • 78
    • 104

    Hot

    • 78
    • 108

    Hot

    • 78
    • 106

    Chance Rain Showers

    • 77
    • 104

    Slight Chance Thunderstorms

    • 74
    • 103

    Slight Chance Thunderstorms

Today 20 Aug Fresno-Tulare Lower Sierra

Sunny. Highs 82 to 94. Southwest Winds up to 10 Mph.

Tonight 20 Aug Fresno-Tulare Lower Sierra

Mostly clear. Lows 67 to 77. North Winds up to 10 Mph shifting to the east after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Johnston Field Temperature Statistics

August Temperature

Fresno, Fresno Air Terminal (27.3 miles)

  • Lowest 4 August, 2025

    63.6 °F

  • Average August

    84.4 °F

  • Highest 9 August, 2025

    105.7 °F

Climate (2020–Present)

Fresno, Fresno Air Terminal (27.3 miles)

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  • Average Low 2020–2025

    55.3 °F

  • Average 2020–2025

    66.9 °F

  • Average High 2020–2025

    79.1 °F
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