O'Fallon Weather in April

Thinking of visiting O'Fallon in April? Expect pleasant temperatures reaching 20°C (68°F) during the day, dropping to 8°C (46°F) at night, and note that quite a bit of rainfall is likely.

Rainfall in O'Fallon in April

Expect around 11 days of rain based on historical data, with 136 mm (5.4 in) average. When it rains this month, it tends to come down fairly heavily. Showers can be substantial even if they don't last all day.

Temperature in O'Fallon in April

O'Fallon in April gets highs of 20°C (68°F) during the day and drops to 8°C (46°F) at night. Even when the weather is stable, mornings and evenings can still feel distinctly cool. At 8°C (46°F) overnight, it gets properly cold after dark. On the bright side, cold nights tend to make for excellent sleeping conditions.

Sunshine in O'Fallon in April

The month enjoys around 225 hours of sunshine, creating mostly sunny days with good weather conditions.

If you prefer enjoying temperate temperatures and rain-free days, October typically offers 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.