Roswell Weather Forecast

    • 48
    • 78

    Mostly Sunny

    • 48
    • 78

    Mostly Sunny

    • 49
    • 79

    Mostly Sunny

    • 49
    • 80

    Mostly Sunny

    • 48
    • 79

    Mostly Sunny

    • 49
    • 80

    Partly Sunny

Today 29 Sep Lower Treasure Valley

Sunny. Highs 75 to 80. Northwest Winds up to 10 Mph.

Tonight 29 Sep Lower Treasure Valley

Mostly clear. Lows 45 to 52. Northwest Winds up to 10 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Roswell Temperature Statistics

September Temperature

Caldwell - Caldwell Industrial Airport (18 miles)

  • Lowest 15 September, 2026

    44.1 °F

  • Average September

    64.8 °F

  • Highest 24 September, 2026

    93 °F

Climate (2021–2026)

Caldwell - Caldwell Industrial Airport (18 miles)

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

  • Average Low 2021–2026

    42 °F

  • Average 2021–2026

    53.4 °F

  • Average High 2021–2026

    65.3 °F
Get WillyWeather+ to remove ads