Thayer Weather Forecast

    • 66
    • 78

    Slight Chance Thunderstorms

    • 69
    • 84

    Chance Thunderstorms

    • 64
    • 82

    Rain Showers Likely

    • 59
    • 69

    Rain Showers Likely

    • 55
    • 61

    Chance Rain Showers

    • 51
    • 60

    Mostly Cloudy

    • 56
    • 64

    Chance Rain Showers

Today 17 Sep Union

Mostly cloudy with a chance of Showers in the Morning, then partly sunny in the afternoon. Highs in the upper 60s. Chance of rain 40 percent.

Tonight 17 Sep Union

Mostly cloudy. A slight chance of Showers and Thunderstorms after midnight. Patchy fog after midnight. Lows in the mid 60s. East Winds 5 to 10 Mph. Chance of rain 20 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Thayer Temperature Statistics

September Temperature

Creston Municipal Airport (16.2 miles)

  • Lowest 13 September, 2026

    53.6 °F

  • Average September

    73.8 °F

  • Highest 1 September, 2026

    95 °F

Climate (2021–2026)

Creston Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    41.6 °F

  • Average 2021–2026

    51.7 °F

  • Average High 2021–2026

    62.2 °F
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