Observation Hill Weather Forecast

    • 39
    • 44

    Rain Showers Likely

    • 41
    • 55

    Chance Rain Showers

    • 40
    • 59

    Mostly Sunny

    • 49
    • 60

    Rain Showers Likely

    • 47
    • 65

    Chance Rain Showers

    • 43
    • 61

    Partly Sunny

    • 44
    • 55

    Rain Showers Likely

Today 11 May Carlton/South St. Louis

Sunny. Near steady temperature in the mid 50s. Southeast Winds 5 to 10 Mph with Gusts up to 20 Mph.

Tonight 11 May Carlton/South St. Louis

Mostly cloudy. A slight chance of Showers in the Evening, then Showers likely with a slight chance of Thunderstorms after midnight. Not as cool with Lows around 40. Southeast Winds 5 to 10 Mph with Gusts up to 25 Mph. Chance of rain 70 percent.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Observation Hill Temperature Statistics

May Temperature

Duluth - Sky Harbor Airport (4.3 miles)

  • Lowest 1 May, 2026

    30.2 °F

  • Average May

    47.3 °F

  • Highest 2 May, 2026

    64.4 °F

Climate (2021–Present)

Duluth - Sky Harbor Airport (4.3 miles)

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  • Average Low 2021–2026

    35.9 °F

  • Average 2021–2026

    42.7 °F

  • Average High 2021–2026

    49.7 °F
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