Diamond Weather Forecast

    • 49
    • 70

    Slight Chance Thunderstorms

    • 54
    • 72

    Chance Rain Showers

    • 55
    • 79

    Partly Sunny

    • 55
    • 80

    Mostly Cloudy

    • 49
    • 72

    Rain Showers Likely

    • 46
    • 60

    Chance Rain Showers

    • 47
    • 66

    Breezy

Today 24 Sep Central Laramie Range and Southwest Platte County

Mostly sunny. Near steady temperature in the upper 60s. East Winds 10 to 15 Mph.

Tonight 24 Sep Central Laramie Range and Southwest Platte County

Mostly cloudy. Areas of fog after midnight. Lows around 50. Southeast Winds 10 to 15 Mph with Gusts up to 25 Mph, becoming south 5 to 10 Mph after midnight.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Diamond Temperature Statistics

September Temperature

Cheyenne, Cheyenne Airport (36 miles)

  • Lowest 21 September, 2026

    42.1 °F

  • Average September

    66.2 °F

  • Highest 4 September, 2026

    88.6 °F

Climate (2021–2026)

Cheyenne, Cheyenne Airport (36 miles)

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

  • Average Low 2021–2026

    36.7 °F

  • Average 2021–2026

    49.2 °F

  • Average High 2021–2026

    61.7 °F
Get WillyWeather+ to remove ads