Jonathan Weather Forecast

    • 64
    • 98

    Hot

    • 63
    • 96

    Sunny

    • 64
    • 99

    Hot

    • 65
    • 98

    Hot

    • 66
    • 101

    Hot

    • 67
    • 103

    Hot

Today 26 Jul Lower Treasure Valley

Sunny. Areas of smoke. Highs 93 to 98. Northwest Winds up to 10 Mph with Gusts to 20 Mph.

Tonight 26 Jul Lower Treasure Valley

Mostly clear. Areas of smoke. Lows 61 to 66. Northwest Winds 10 to 15 Mph. Gusts to 25 Mph after midnight.

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Jonathan Temperature Statistics

July Temperature

Ontario Municipal Airport (17.4 miles)

  • Lowest 2 July, 2026

    53.7 °F

  • Average July

    80 °F

  • Highest 20 July, 2026

    104.6 °F

Climate (2021–2026)

Ontario Municipal Airport (17.4 miles)

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  • Average Low 2021–2026

    42.6 °F

  • Average 2021–2026

    54.6 °F

  • Average High 2021–2026

    67.1 °F
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