Ossian Weather Forecast

    • 3
    • 36

    Snow

    • 8
    • 16

    Chance Snow

    • 11
    • 19

    Mostly Cloudy

    • 8
    • 24

    Mostly Cloudy

    • 22
    • 27

    Mostly Cloudy

    • 24
    • 33

    Mostly Cloudy

    • 19
    • 33

    Mostly Cloudy

Today 31 Dec Winneshiek

Snow. Snow accumulation little or no. Highs in the mid 30s. Temperature falling into the mid 20s late. Northwest Winds 10 to 15 Mph. Chance of snow 100 percent.

Tonight 31 Dec Winneshiek

Mostly cloudy with scattered Flurries this Evening, then partly cloudy after midnight. Much Colder with Lows around 3 above. North Winds 10 to 15 Mph.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Ossian Temperature Statistics

December Temperature

Decorah (9.3 miles)

  • Lowest 14 December, 2025

    -9.4 °F

  • Average December

    21.1 °F

  • Highest 18 December, 2025

    41 °F

Climate (2021–Present)

Decorah (9.3 miles)

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

  • Average Low 2021–2025

    39.4 °F

  • Average 2021–2025

    48.1 °F

  • Average High 2021–2025

    56.6 °F
Get WillyWeather+ to remove ads