Watertown Weather Forecast

    • 55
    • 62

    Rain Showers

    • 52
    • 63

    Cloudy

    • 49
    • 65

    Chance Rain Showers

    • 45
    • 61

    Mostly Cloudy

    • 46
    • 65

    Partly Sunny

    • 51
    • 67

    Slight Chance Rain Showers

Today 18 Sep Codington

Showers. Patchy fog. Cooler. Near steady temperature around 60. East Winds 15 to 20 Mph with Gusts up to 30 Mph. Chance of rain 90 percent.

Tonight 18 Sep Codington

Cloudy. A chance of Showers in the evening. Patchy fog in the Evening, then Areas of fog after midnight. Near steady temperature in the upper 50s. East Winds 10 to 15 Mph. Gusts up to 30 Mph in the evening. Chance of rain 50 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Watertown Temperature Statistics

September Temperature

Watertown, Watertown Municipal Airport (1.2 miles)

  • Lowest 16 September, 2026

    45 °F

  • Average September

    69.1 °F

  • Highest 3 September, 2026

    93.7 °F

Climate (2021–2026)

Watertown, Watertown Municipal Airport (1.2 miles)

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

  • Average Low 2021–2026

    35.2 °F

  • Average 2021–2026

    45.5 °F

  • Average High 2021–2026

    56 °F
Get WillyWeather+ to remove ads