Oswego Weather Forecast

    • 70
    • 92

    Mostly Cloudy

    • 68
    • 84

    Rain Showers Likely

    • 73
    • 88

    Chance Rain Showers

    • 74
    • 93

    Rain Showers Likely

    • 70
    • 89

    Thunderstorms Likely

    • 66
    • 87

    Partly Sunny

    • 71
    • 91

    Partly Sunny

Today 15 Jun Sumter

Mostly sunny. Near steady temperature in the lower 90s. West Winds 5 to 10 Mph.

Tonight 15 Jun Sumter

Mostly cloudy. Lows in the lower 70s. Light and variable Winds.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Oswego Temperature Statistics

June Temperature

Sumter Airport (3.7 miles)

  • Lowest 3 June, 2026

    48.2 °F

  • Average June

    77.1 °F

  • Highest 12 June, 2026

    98.6 °F

Climate (2021–Present)

Sumter Airport (3.7 miles)

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  • Average Low 2021–2026

    52.6 °F

  • Average 2021–2026

    63.9 °F

  • Average High 2021–2026

    75.8 °F
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