Agate Fossil Beds National Monument Weather Forecast

    • 45
    • 80

    Rain Showers Likely

    • 30
    • 65

    Rain/Snow

    • 25
    • 40

    Rain/Snow

    • 29
    • 55

    Partly Sunny

    • 36
    • 65

    Slight Chance Thunderstorms

    • 40
    • 72

    Partly Sunny

Today 16 May South Sioux

Mostly sunny. A chance of Showers and Thunderstorms in the afternoon. Highs in the upper 70s. Southeast Winds 10 to 15 Mph. Chance of rain 50 percent.

Tonight 16 May South Sioux

Mostly cloudy. Lows in the upper 40s. Northeast Winds around 10 Mph with Gusts up to 20 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Agate Fossil Beds National Monument Temperature Statistics

May Temperature

Torrington Municipal Airport (32.3 miles)

  • Lowest 6 May, 2026

    28.7 °F

  • Average May

    56.3 °F

  • Highest 13 May, 2026

    95 °F

Climate (2021–Present)

Torrington Municipal Airport (32.3 miles)

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  • Average Low 2021–2026

    36.5 °F

  • Average 2021–2026

    51.2 °F

  • Average High 2021–2026

    66.2 °F
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