Ottawa Weather Forecast

    • 69
    • 91

    Rain Showers

    • 65
    • 84

    Slight Chance Thunderstorms

    • 68
    • 86

    Partly Sunny

    • 70
    • 88

    Slight Chance Thunderstorms

    • 72
    • 91

    Chance Thunderstorms

    • 67
    • 90

    Chance Rain Showers

Today 23 Jul Le Sueur

Partly sunny. Slight chance of Thunderstorms in the late morning and early afternoon. Chance of Showers and Thunderstorms late in the afternoon. Locally heavy rainfall possible late in the afternoon. Highs in the upper 80s. South Winds 5 to 15 Mph. Chance of precipitation 50 percent.

Tonight 23 Jul Le Sueur

Thunderstorms likely in the Evening, then chance of Thunderstorms after midnight. Lows in the upper 60s. Southwest Winds 5 to 10 Mph. Chance of Thunderstorms 70 percent.

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Ottawa Temperature Statistics

July Temperature

Mankato, Mankato Regional Airport (11.2 miles)

  • Lowest 17 July, 2025

    51.1 °F
  • Average July

    73.3 °F
  • Highest 3 July, 2025

    90 °F

Climate (2020–Present)

Mankato, Mankato Regional Airport (11.2 miles)

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  • Average Low 2020–2025

    39.1 °F
  • Average 2020–2025

    48 °F
  • Average High 2020–2025

    56.8 °F
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