Mongo Weather Forecast

    • 70
    • 87

    Chance Rain Showers

    • 68
    • 87

    Rain Showers

    • 60
    • 84

    Slight Chance Rain Showers

    • 62
    • 83

    Mostly Sunny

    • 66
    • 86

    Mostly Sunny

    • 69
    • 90

    Mostly Sunny

Today 11 Aug Lagrange

Mostly sunny Early, then becoming partly cloudy. A chance of Showers with a slight chance of Thunderstorms this afternoon. Humid with Highs in the upper 80s. Southwest Winds 10 to 15 Mph. Chance of rain 40 percent.

Tonight 11 Aug Lagrange

Partly cloudy. A chance of Showers with a slight chance of Thunderstorms in the Evening, then a slight chance of Showers after midnight. Humid with Lows around 70. Southwest Winds 5 to 10 Mph. Chance of rain 40 percent.

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Mongo Temperature Statistics

August Temperature

Angola Tri-State Steuben County Airport (10.6 miles)

  • Lowest 2 August, 2025

    51.8 °F

  • Average August

    69.1 °F

  • Highest 8 August, 2025

    89.6 °F

Climate (2020–Present)

Angola Tri-State Steuben County Airport (10.6 miles)

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  • Average Low 2020–2025

    41.8 °F

  • Average 2020–2025

    50.7 °F

  • Average High 2020–2025

    59.8 °F
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