Mill Valley Weather Forecast

    • 41
    • 73

    Increasing Clouds

    • 32
    • 47

    Partly Sunny

    • 30
    • 47

    Partly Sunny

    • 42
    • 54

    Partly Sunny

    • 44
    • 71

    Mostly Sunny

    • 44
    • 64

    Mostly Sunny

Today 17 Apr Milwaukee

Partly sunny. Widespread fog in the morning. Chance of light rain Showers and slight chance of Thunderstorms late in the afternoon. Some Thunderstorms may produce heavy rainfall late in the afternoon. Highs in the upper 60s near the lake and in the mid 70s inland. Southeast Winds 5 to 15 Mph with Gusts to around 30 Mph. Chance of precipitation 50 percent.

Tonight 17 Apr Milwaukee

Cloudy. Rain Showers likely and chance of Thunderstorms through around Midnight, then chance of light rain Showers after midnight. Some Thunderstorms may be severe with heavy rainfall in the evening. Some Thunderstorms may produce heavy rainfall late in the evening. Lows in the lower 40s. South Winds 10 to 15 Mph shifting to the west after midnight. Gusts up to 30 Mph. Chance of precipitation 70 percent.

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Mill Valley Temperature Statistics

April Temperature

Milwaukee-Timmerman (2.5 miles)

  • Lowest 7 April, 2026

    21.2 °F

  • Average April

    43.8 °F

  • Highest 13 April, 2026

    75.2 °F

Climate (2021–Present)

Milwaukee-Timmerman (2.5 miles)

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  • Average Low 2021–2026

    40 °F

  • Average 2021–2026

    47.1 °F

  • Average High 2021–2026

    57 °F
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