Cortland Weather Forecast

    • 72
    • 96

    Increasing Clouds

    • 71
    • 93

    Chance Thunderstorms

    • 76
    • 94

    Partly Sunny

    • 69
    • 98

    Rain Showers Likely

    • 66
    • 85

    Chance Rain Showers

    • 68
    • 86

    Slight Chance Thunderstorms

Today 5 Sep Gage

Sunny, hot with Highs in the upper 90s. Southeast Winds 5 to 10 Mph. Heat index Values up to 103.

Tonight 5 Sep Gage

Mostly clear in the Evening, then becoming partly cloudy. Humid with Lows in the lower 70s. Southeast Winds 5 to 10 Mph.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Cortland Temperature Statistics

September Temperature

Beatrice Municipal (14.3 miles)

  • Lowest 2 September, 2026

    72.5 °F

  • Average September

    86.1 °F

  • Highest 1 September, 2026

    99.5 °F

Climate (2021–2026)

Beatrice Municipal (14.3 miles)

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  • Average Low 2021–2026

    42 °F

  • Average 2021–2026

    53.8 °F

  • Average High 2021–2026

    65.8 °F
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