Roswell Weather Forecast

    • 38
    • 48

    Rain Likely

    • 39
    • 48

    Chance Rain

    • 37
    • 55

    Rain Likely

    • 36
    • 51

    Rain Likely

    • 27
    • 46

    Chance Rain

    • 24
    • 41

    Areas Fog

Today 22 Dec Lower Treasure Valley

Rain Likely, mainly this morning. Areas of fog this Morning, then patchy fog this afternoon. Chance of rain 70 percent. Highs 46 to 51. Southeast Winds up to 10 Mph.

Tonight 22 Dec Lower Treasure Valley

Rain, mainly after midnight. Areas of fog. Chance of rain 80 percent. Lows 37 to 42. Southeast Winds up to 10 Mph.

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  • Temperature Forecast NOAA

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Roswell Temperature Statistics

December Temperature

Caldwell - Caldwell Industrial Airport (18 miles)

  • Lowest 1 December, 2025

    19 °F

  • Average December

    39.7 °F

  • Highest 11 December, 2025

    64.9 °F

Climate (2020–Present)

Caldwell - Caldwell Industrial Airport (18 miles)

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  • Average Low 2020–2025

    41.8 °F

  • Average 2020–2025

    53.2 °F

  • Average High 2020–2025

    65.2 °F
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