Lewistown Weather Forecast

    • 68
    • 77

    Rain Showers

    • 63
    • 75

    Rain Showers Likely

    • 61
    • 80

    Partly Sunny

    • 62
    • 82

    Mostly Sunny

    • 65
    • 85

    Mostly Sunny

    • 67
    • 86

    Chance Rain Showers

Today 31 Jul Fulton

Showers with a chance of Thunderstorms. Highs in the upper 70s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain near 100 percent.

Tonight 31 Jul Fulton

A chance of Thunderstorms. Showers, mainly in the evening. Humid with Lows in the upper 60s. South Winds 10 to 15 Mph with Gusts up to 25 Mph. Chance of rain 90 percent.

Graph Plots Open in Graphs

  • Temperature Forecast NOAA

  • Temperature Real-Time

Lewistown Temperature Statistics

July Temperature

Macomb Municipal Airport (27.3 miles)

  • Lowest 23 July, 2026

    52.5 °F

  • Average July

    76.4 °F

  • Highest 27 July, 2026

    93.4 °F

Climate (2021–2026)

Macomb Municipal Airport (27.3 miles)

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

  • Average Low 2021–2026

    43 °F

  • Average 2021–2026

    53.7 °F

  • Average High 2021–2026

    64.5 °F
Get WillyWeather+ to remove ads