Reliance Weather Forecast

    • 54
    • 76

    Decreasing Clouds

    • 46
    • 63

    Slight Chance Rain Showers

    • 49
    • 62

    Partly Sunny

    • 46
    • 70

    Mostly Sunny

    • 48
    • 63

    Mostly Sunny

    • 55
    • 69

    Breezy

Today 30 Sep Lyman

Partly sunny. Highs in the upper 70s. West Winds around 5 Mph.

Tonight 30 Sep Lyman

Mostly cloudy. Lows in the mid 50s. North Winds around 5 Mph, increasing to 10 to 15 Mph with Gusts up to 25 Mph after midnight.

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Reliance Temperature Statistics

September Temperature

Chamberlain, Chamberlain Municipal Airport (16.2 miles)

  • Lowest 22 September, 2026

    44.4 °F

  • Average September

    66.8 °F

  • Highest 3 September, 2026

    99.3 °F

Climate (2021–2026)

Chamberlain, Chamberlain Municipal Airport (16.2 miles)

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  • Average Low 2021–2026

    36.6 °F

  • Average 2021–2026

    47.8 °F

  • Average High 2021–2026

    59.5 °F
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