St. Charles Weather in March
March in St. Charles sees daytime temperatures around 14°C (57°F) and lows of 2°C (36°F) at night. With around 87 mm (3.4 in) of rainfall expected, it's worth packing a rain jacket.
Rainfall in St. Charles in March
Historically, approximately 11 days this month are expected to have rain, averaging 87 mm (3.4 in). Individual showers can be quite heavy this month. A proper umbrella or rain jacket is worth having.
Temperature in St. Charles in March
If you're visiting St. Charles in March, expect highs of 14°C (57°F) and overnight lows around 2°C (36°F). Even when the weather is stable, mornings and evenings can still feel distinctly cool. With lows around 2°C (36°F), nights are cold. The upside is that cool, crisp nights are often the best for a deep sleep.
Sunshine in St. Charles in March
With approximately 199 hours of sunshine, the days are filled with clear skies. Despite it being a cool month, it makes for pleasant days outside.If you prefer enjoying temperate temperatures and rain-free days, September and October typically offer the best circumstances. If you're seeking pleasant, dry and sunny weather somewhere else in the world, our weather planner can help you explore other options.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our St. Charles's climate page.
St. Charles Temperature in March
Min Temperature
2°C (36°F)
Max Temperature
14°C (57°F)
Chance of Rain
37%
Precipitation
87 mm (3.4 in)
Rainy days
11 days
Humidity
68% *
Sunshine
199 hours *
Percentage Sunshine
53% *
Best Places in the United States of America in March
Find out more about the weather in the United States of America and which places have the best travel conditions in this month. See all of the United States of America in March →
perfect weather
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unpleasant
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What to Wear in St. Charles in March
The weather can swing between comfortable and chilly in March, so flexibility is key. Pack a variety of tops, at least one warm layer, and both shorts and long pants. This gives you options no matter what the day brings. Expect heavy rainfall, so bring good rain protection and waterproof bags. You'll definitely want to pack sunglasses and sunscreen. There will be plenty of bright sunshine this month.What To Do in St. Charles in March
We rated the following activities from 1 (least suitable) to 10 (best) to do.
Check the conditions for any month of the year.
For a detailed overview over the year and the best time to visit the United States of America, check out our St. Charles's climate page.
Temperature Rainfall Sunshine Humidity
See the full St. Charles climate overview or explore weather in the United States of America.
