Roy City Park Weather Forecast

    • 26
    • 39

    Breezy

    • 19
    • 34

    Chance Snow

    • 15
    • 27

    Blustery

    • 2
    • 24

    Mostly Cloudy

    • 8
    • 19

    Partly Sunny

    • 17
    • 30

    Partly Sunny

Today 19 Jan Fergus County below 4500ft

Mostly sunny until late afternoon then becoming mostly cloudy. Highs 36 to 42. West Winds 5 to 15 Mph with Gusts to around 35 Mph.

Tonight 19 Jan Fergus County below 4500ft

Not as cold. Mostly cloudy. Lows in the mid 20s. Southwest Winds up to 10 Mph with Gusts to around 25 Mph shifting to the west with Gusts to around 45 Mph after midnight.

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Roy City Park Temperature Statistics

January Temperature

Lewistown, Lewistown Municipal Airport (30.4 miles)

  • Lowest 17 January, 2026

    12 °F

  • Average January

    38.1 °F

  • Highest 14 January, 2026

    64 °F

Climate (2021–Present)

Lewistown, Lewistown Municipal Airport (30.4 miles)

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  • Average Low 2021–2026

    32.4 °F

  • Average 2021–2026

    44.6 °F

  • Average High 2021–2026

    56.6 °F
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