Joanna Weather Forecast

    • 45
    • 65

    Rain Showers

    • 48
    • 52

    Rain Showers

    • 54
    • 66

    Rain Showers Likely

    • 57
    • 74

    Chance Rain Showers

    • 59
    • 78

    Slight Chance Rain Showers

    • 59
    • 81

    Partly Sunny

Today 22 May Berks

Mostly cloudy with a 20 percent chance of rain. Highs in the upper 60s. Temperature falling into the lower 60s late. East Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 22 May Berks

Cloudy. A slight chance of rain in the Evening, then rain likely after midnight. Lows in the mid 40s. Southeast Winds 5 to 10 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Joanna Temperature Statistics

May Temperature

Chester County Airport (13 miles)

  • Lowest 1 May, 2026

    36.7 °F

  • Average May

    61.1 °F

  • Highest 19 May, 2026

    92.1 °F

Climate (2021–Present)

Chester County Airport (13 miles)

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  • Average Low 2021–2026

    45.9 °F

  • Average 2021–2026

    54.4 °F

  • Average High 2021–2026

    63 °F
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