Oswego Weather Forecast

    • 46
    • 57

    Rain Showers Likely

    • 24
    • 62

    Chance Rain Showers

    • 18
    • 39

    Mostly Sunny

    • 19
    • 36

    Chance Snow

    • 16
    • 34

    Partly Sunny

    • 24
    • 39

    Chance Rain Showers

Today 18 Jan Sumter

Cloudy. Showers Likely, mainly in the morning. Highs in the upper 50s. South Winds around 5 Mph. Chance of rain 70 percent.

Tonight 18 Jan Sumter

Mostly cloudy with a 50 percent chance of Showers. Near steady temperature around 50. South Winds around 5 Mph.

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Oswego Temperature Statistics

January Temperature

Sumter Airport (3.7 miles)

  • Lowest 8 January, 2025

    19.4 °F

  • Average January

    37.7 °F

  • Highest 6 January, 2025

    62.6 °F

Climate (2020–Present)

Sumter Airport (3.7 miles)

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  • Average Low 2020–2025

    53.3 °F

  • Average 2020–2025

    64.1 °F

  • Average High 2020–2025

    75.8 °F
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