Simpson Lake Weather Forecast

    • 48
    • 63

    Chance Rain Showers

    • 53
    • 73

    Mostly Sunny

    • 60
    • 73

    Chance Thunderstorms

    • 56
    • 77

    Partly Sunny

    • 61
    • 80

    Chance Rain Showers

    • 66
    • 83

    Chance Thunderstorms

    • 66
    • 88

    Chance Thunderstorms

Today 16 Jul Polk

Much cooler. Cloudy. Chance of rain Showers and slight chance of Thunderstorms early in the Afternoon, then slight chance of Thunderstorms late in the afternoon. Near steady temperature around 60. Northeast Winds 10 to 15 Mph. Chance of precipitation 50 percent.

Tonight 16 Jul Polk

Cooler. Decreasing Clouds. Slight chance of rain Showers early in the Evening, then chance of rain Showers in the evening. Lows in the upper 40s. North Winds 5 to 15 Mph. Chance of Showers 40 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Simpson Lake Temperature Statistics

July Temperature

Rush City Regional Airport (15.5 miles)

  • Lowest 7 July, 2025

    53.6 °F

  • Average July

    71.1 °F

  • Highest 4 July, 2025

    89.6 °F

Climate (2020–Present)

Rush City Regional Airport (15.5 miles)

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

  • Average Low 2020–2025

    35.5 °F

  • Average 2020–2025

    45.3 °F

  • Average High 2020–2025

    54.7 °F
Get WillyWeather+ to remove ads