Ottawa Weather Forecast

    • 9
    • 30

    Decreasing Clouds

    • 8
    • 19

    Mostly Sunny

    • 24
    • 31

    Mostly Cloudy

    • 13
    • 34

    Partly Sunny

    • 14
    • 27

    Mostly Cloudy

    • 9
    • 25

    Chance Snow Showers

Today 19 Jan Montour

Partly sunny in the Morning, then becoming mostly cloudy. Highs around 30. Southwest Winds 5 to 10 Mph, increasing to 15 to 20 Mph in the afternoon. Gusts up to 35 Mph.

Tonight 19 Jan Montour

Mostly cloudy. Colder with Lows around 15. West Winds around 5 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Ottawa Temperature Statistics

January Temperature

Williamsport - Lycoming County Airport (15.5 miles)

  • Lowest 1 January, 2026

    14 °F

  • Average January

    31.4 °F

  • Highest 8 January, 2026

    50 °F

Climate (2021–Present)

Williamsport - Lycoming County Airport (15.5 miles)

Take a look at our website widgetsAvailable free! Find Out More

  • Average Low 2021–2026

    43.8 °F

  • Average 2021–2026

    53 °F

  • Average High 2021–2026

    63.2 °F
Get WillyWeather+ to remove ads