Union Weather Forecast

    • 56
    • 90

    Decreasing Clouds

    • 53
    • 91

    Mostly Sunny

    • 56
    • 92

    Mostly Sunny

    • 60
    • 96

    Partly Sunny

    • 58
    • 96

    Mostly Cloudy

    • 51
    • 87

    Mostly Sunny

    • 51
    • 86

    Mostly Sunny

Today 17 Aug Southern Blue Mountains of Oregon

Mostly cloudy with a 20 percent chance of Showers. Highs in the lower to mid 80s.

Tonight 17 Aug Southern Blue Mountains of Oregon

Partly cloudy. A 20 percent chance of rain Showers in the evening. Patchy smoke overnight. Lows in the lower 50s to lower 60s.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Union Temperature Statistics

August Temperature

La Grande/Union County Airport (8.7 miles)

  • Lowest 5 August, 2026

    43 °F

  • Average August

    70.4 °F

  • Highest 7 August, 2026

    99 °F

Climate (2021–2026)

La Grande/Union County Airport (8.7 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    38.2 °F

  • Average 2021–2026

    50.5 °F

  • Average High 2021–2026

    62.6 °F
Get WillyWeather+ to remove ads