Barnhart Weather Forecast

    • 61
    • 82

    Increasing Clouds

    • 66
    • 83

    Chance Thunderstorms

    • 66
    • 85

    Rain Showers Likely

    • 70
    • 83

    Rain Showers

    • 73
    • 88

    Slight Chance Thunderstorms

    • 76
    • 93

    Mostly Sunny

Today 23 Jun Jefferson

Patchy fog in the morning. Sunny. Not as cool with Highs in the lower 80s. Northeast Winds around 5 Mph.

Tonight 23 Jun Jefferson

Partly cloudy in the Evening, then becoming mostly cloudy. Lows in the lower 60s. East Winds around 5 Mph in the Evening, becoming light and variable.

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  • Temperature Forecast NOAA

  • Temperature Real-Time

Barnhart Temperature Statistics

June Temperature

St. Louis Downtown Airport (19.9 miles)

  • Lowest 3 June, 2026

    52.6 °F

  • Average June

    75.3 °F

  • Highest 10 June, 2026

    93.7 °F

Climate (2021–2026)

St. Louis Downtown Airport (19.9 miles)

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  • Average Low 2021–2026

    47.6 °F

  • Average 2021–2026

    58.4 °F

  • Average High 2021–2026

    69.3 °F
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