Barstow Weather Forecast

    • 62
    • 83

    Becoming Sunny

    • 59
    • 83

    Becoming Sunny

    • 63
    • 84

    Mostly Sunny

    • 68
    • 84

    Chance Thunderstorms

    • 73
    • 92

    Slight Chance Thunderstorms

    • 72
    • 94

    Chance Thunderstorms

    • 70
    • 91

    Chance Rain Showers

Today 26 Aug Rock Island

Sunny. Near steady temperature in the lower 80s. Northwest Winds 10 to 15 Mph.

Tonight 26 Aug Rock Island

Mostly clear. Lows in the lower 60s. Northwest Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Barstow Temperature Statistics

August Temperature

Moline Quad-City Airport (9.3 miles)

  • Lowest 24 August, 2026

    54 °F

  • Average August

    74.2 °F

  • Highest 10 August, 2026

    90.6 °F

Climate (2021–2026)

Moline Quad-City Airport (9.3 miles)

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  • Average Low 2021–2026

    42.9 °F

  • Average 2021–2026

    53.6 °F

  • Average High 2021–2026

    64.1 °F
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