Bellevue Weather Forecast

    • 44
    • 53

    Rain Showers Likely

    • 44
    • 57

    Rain Showers

    • 47
    • 64

    Mostly Cloudy

    • 48
    • 67

    Mostly Cloudy

    • 50
    • 68

    Mostly Cloudy

    • 50
    • 68

    Mostly Cloudy

Today 15 May Eastside

Mostly cloudy. A chance of Showers in the Morning, then Showers likely and a slight chance of Thunderstorms in the afternoon. Rainfall Amounts less than a tenth of an inch Likely, except higher Amounts possible in Thunderstorms. Highs in the lower to mid 50s. South wind 10 to 20 Mph becoming southwest 15 to 20 Mph in the afternoon.

Tonight 15 May Eastside

Mostly cloudy with Showers likely and a slight chance of Thunderstorms in the Evening, then mostly cloudy with a chance of Showers after midnight. Rainfall Amounts less than a tenth of an inch Likely, except higher Amounts possible in Thunderstorms. Lows in the lower to mid 40s. South wind 10 to 15 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Bellevue Temperature Statistics

May Temperature

Boeing Field - King County International Airport (6.8 miles)

  • Lowest 9 May, 2026

    48.9 °F

  • Average May

    61.1 °F

  • Highest 12 May, 2026

    80.1 °F

Climate (2021–Present)

Boeing Field - King County International Airport (6.8 miles)

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  • Average Low 2021–2026

    47.2 °F

  • Average 2021–2026

    54.3 °F

  • Average High 2021–2026

    61.7 °F
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