Marlborough Weather Forecast
- 75
- 88
Rain Showers Likely
- 77
- 96
Hot
- 78
- 98
Hot
- 77
- 98
Hot
- 76
- 95
Slight Chance Thunderstorms
- 76
- 95
Chance Thunderstorms
Today 21 Jul St. Louis
Showers with isolated Thunderstorms early this Morning, then numerous Showers this afternoon. Highs in the upper 80s. Southwest Winds around 5 Mph, becoming southeast this afternoon. Chance of rain near 100 percent. Heat index Values up to 100 this afternoon.
Tonight 21 Jul St. Louis
Partly cloudy with a slight chance of Showers and Thunderstorms. Humid with Lows in the mid 70s. East Winds around 5 Mph. Chance of rain 20 percent.
Marlborough Temperature Statistics
July Temperature
St. Louis Downtown Airport (9.9 miles)
Lowest 2 July, 2025
63.6 °FAverage July
81.4 °FHighest 11 July, 2025
97.6 °F
Climate (2020–Present)
St. Louis Downtown Airport (9.9 miles)
Average Low 2020–2025
47.3 °FAverage 2020–2025
57.7 °FAverage High 2020–2025
68.3 °F