Riley Weather Forecast

    • 48
    • 74

    Mostly Sunny

    • 54
    • 79

    Partly Sunny

    • 58
    • 85

    Mostly Sunny

    • 60
    • 88

    Mostly Sunny

    • 61
    • 89

    Mostly Sunny

    • 62
    • 90

    Slight Chance Thunderstorms

Today 8 Sep Vigo

Sunny. Highs in the mid 70s. East Winds around 5 Mph.

Tonight 8 Sep Vigo

Mostly clear. Lows in the upper 40s. Light and variable Winds.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Riley Temperature Statistics

September Temperature

Terre Haute Regional Airport (3.7 miles)

  • Lowest 2 September, 2025

    48 °F

  • Average September

    64 °F

  • Highest 2 September, 2025

    82.9 °F

Climate (2020–Present)

Terre Haute Regional Airport (3.7 miles)

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

  • Average Low 2020–2025

    45.6 °F

  • Average 2020–2025

    55.4 °F

  • Average High 2020–2025

    65.4 °F
Get WillyWeather+ to remove ads