Bethlehem Weather Forecast

    • 69
    • 91

    Slight Chance Thunderstorms

    • 72
    • 93

    Partly Sunny

    • 77
    • 92

    Chance Thunderstorms

    • 64
    • 90

    Rain Showers Likely

    • 59
    • 86

    Partly Sunny

    • 58
    • 84

    Mostly Sunny

    • 62
    • 87

    Mostly Sunny

Today 18 May Holmes

Patchy fog this morning. Partly sunny. Highs in the lower 90s. Southwest Winds 5 to 10 Mph.

Tonight 18 May Holmes

Partly cloudy. A slight chance of Showers and Thunderstorms this evening. Patchy fog after midnight. Lows in the upper 60s. Southwest Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bethlehem Temperature Statistics

May Temperature

Tri-County Airport (9.3 miles)

  • Lowest 5 May, 2025

    51.7 °F

  • Average May

    73.6 °F

  • Highest 8 May, 2025

    91.7 °F

Climate (2020–Present)

Tri-County Airport (9.3 miles)

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  • Average Low 2020–2025

    58.2 °F

  • Average 2020–2025

    68.8 °F

  • Average High 2020–2025

    80.8 °F
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