Merrimac Weather Forecast
- 58
- 78
Rain Showers Likely
- 54
- 79
Mostly Sunny
- 61
- 82
Partly Sunny
- 65
- 88
Mostly Sunny
- 70
- 93
Mostly Sunny
- 67
- 93
Mostly Sunny
Today 9 Jun Monroe
Mostly cloudy in the Morning, then becoming partly sunny. A slight chance of Thunderstorms in the morning. A chance of Showers. Highs in the upper 70s. North Winds 5 to 10 Mph. Chance of rain 50 percent.
Tonight 9 Jun Monroe
Mostly clear. Lows in the upper 50s. Northwest Winds 5 to 10 Mph.
Merrimac Temperature Statistics
June Temperature
St. Louis Downtown Airport (16.2 miles)
Lowest 6 June, 2024
61 °FAverage June
75.3 °FHighest 3 June, 2024
90 °F
Climate (2019–Present)
St. Louis Downtown Airport (16.2 miles)
Take a look at our website widgetsAvailable free! Find Out MoreAverage Low 2019–2024
47.2 °FAverage 2019–2024
57.3 °FAverage High 2019–2024
67.7 °F