Radnor Weather Forecast

    • 54
    • 76

    Increasing Clouds

    • 48
    • 67

    Partly Sunny

    • 54
    • 74

    Mostly Sunny

    • 54
    • 75

    Mostly Sunny

    • 53
    • 74

    Chance Rain Showers

    • 55
    • 75

    Slight Chance Rain Showers

    • 60
    • 81

    Mostly Sunny

Today 29 May Delaware

Sunny. Highs in the mid 70s. Northwest Winds 5 to 10 Mph, becoming west 10 to 15 Mph with Gusts up to 25 Mph this afternoon.

Tonight 29 May Delaware

Mostly clear this Evening, then becoming partly cloudy. Lows in the mid 50s. West Winds around 10 Mph, becoming northwest after midnight.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Radnor Temperature Statistics

May Temperature

Philadelphia - Wings Field Airport (7.5 miles)

  • Lowest 12 May, 2026

    38.3 °F

  • Average May

    62.8 °F

  • Highest 19 May, 2026

    95.5 °F

Climate (2021–Present)

Philadelphia - Wings Field Airport (7.5 miles)

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  • Average Low 2021–2026

    44.5 °F

  • Average 2021–2026

    55.1 °F

  • Average High 2021–2026

    64.4 °F
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