Sun Valley Weather Forecast

    • 39
    • 51

    Rain Showers Likely

    • 41
    • 60

    Rain Showers Likely

    • 43
    • 68

    Rain Showers Likely

    • 44
    • 68

    Chance Thunderstorms

    • 47
    • 74

    Chance Thunderstorms

    • 51
    • 81

    Partly Sunny

Today 19 May North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County

Mostly cloudy. Patchy fog in the morning. Chance of rain Showers and slight chance of Thunderstorms in the afternoon. Highs near 50. Chance of rain 50 percent.

Tonight 19 May North Douglas County Below 6000 Feet/Denver/West Adams and Arapahoe Counties/East Broomfield County

Showers likely in the Evening, then a chance of Showers after midnight. Lows in the upper 30s. Chance of rain 70 percent.

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Sun Valley Temperature Statistics

May Temperature

Broomfield / Jeffco (11.8 miles)

  • Lowest 5 May, 2026

    32 °F

  • Average May

    56.8 °F

  • Highest 11 May, 2026

    87.8 °F

Climate (2021–Present)

Broomfield / Jeffco (11.8 miles)

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  • Average Low 2021–2026

    42.1 °F

  • Average 2021–2026

    51.6 °F

  • Average High 2021–2026

    65.9 °F
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