Stillwater Weather Forecast

    • 61
    • 85

    Becoming Sunny

    • 59
    • 85

    Mostly Sunny

    • 61
    • 85

    Partly Sunny

    • 62
    • 86

    Mostly Cloudy

    • 65
    • 85

    Chance Rain Showers

    • 67
    • 86

    Slight Chance Thunderstorms

Today 21 Sep Payne

Mostly sunny. Highs in the mid 80s. North Winds 5 to 10 Mph.

Tonight 21 Sep Payne

Mostly clear in the Evening, then becoming partly cloudy. Lows in the lower 60s. Northeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Stillwater Temperature Statistics

September Temperature

Stillwater, Stillwater Regional Airport (3.1 miles)

  • Lowest 11 September, 2026

    65.6 °F

  • Average September

    86 °F

  • Highest 6 September, 2026

    101.6 °F

Climate (2021–2026)

Stillwater, Stillwater Regional Airport (3.1 miles)

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  • Average Low 2021–2026

    51.1 °F

  • Average 2021–2026

    63.5 °F

  • Average High 2021–2026

    76.1 °F
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