Is it raining now in Ballwin?
Sunny
25 JulNo upcoming precipitation for the next hour.
Last update: 21:00, 25 Jul 2026
Free to download * Essential from $0.83 * Prices vary by region and promotions.
- App Only
Track up to 20 locations
Home, office, kids' school - all at once, no switching tabs.
- App Only
Alerts for each of them
Get notified 15 minutes before rain - while you can still change your plans.
- App Only
Widgets on your home screen
Live radar without opening the app - on your lock screen or home screen.
Rain in Ballwin: What You Need to Know
Ballwin, Missouri experiences Tornado Alley edge and river flooding. The Ballwin rain radar delivers real-time NEXRAD data from KEAX (Pleasant Hill/Kansas City), updated every 4–6 minutes at up to 250-meter resolution. Storms in this part of Missouri typically approach from southwest, and RainViewer's hyperlocal radar shows their exact position and direction so you can act before conditions change.
A standard forecast covers the broader Missouri region. RainViewer shows the actual cell over Ballwin right now — with direction arrows and a 2-hour nowcast so residents and visitors can make real decisions, not guesses.
Rain by Season in Ballwin
Peak rain season (April–June (spring frontal+tornado) and June–August (convective))
Ballwin's highest weather risk aligns with April–June (spring frontal+tornado) and June–August (convective). Tornado alley edge and river flooding drives precipitation events in this region.
Transition months
Seasonal transitions bring variable conditions — a live radar is more reliable than a forecast during these less predictable windows.
Drier season (October–February)
Precipitation probability drops in Ballwin during October–February, allowing outdoor activities to proceed with lower weather risk.
Why You Need a Rain Radar in Ballwin
Commuters and Drivers in Ballwin
A radar check before leaving gives Ballwin drivers 20+ minutes to adjust timing or avoid flood-prone roads. Real-time NEXRAD is more actionable than a forecast probability for daily commute decisions in Missouri.
Outdoor Planning in Ballwin
Residents and visitors planning outdoor activities in Ballwin benefit from knowing exactly when rain will arrive from southwest. A live radar replaces forecast uncertainty with a real decision window.
RainViewer Radar Coverage in Ballwin
RainViewer aggregates radar data for the United States from the NEXRAD network operated by NOAA's National Weather Service — 160 WSR-88D stations covering the contiguous US, Alaska, Hawaii, and US territories. Data updates every 4–6 minutes as each station completes its scan cycle. RainViewer processes and displays NEXRAD data at up to 250-meter resolution. For Ballwin, Missouri, the primary NEXRAD source is KEAX (Pleasant Hill/Kansas City).
Ballwin Rain Radar: Frequently Asked Questions
- Does Ballwin flood when it rains?
Ballwin can experience localized flooding during intense rain events, particularly in low-lying areas near drainage channels. Tornado alley edge and river flooding means runoff can accumulate quickly in parts of Missouri. A live radar provides advance warning before conditions develop.
- When is the rainy season in Ballwin?
Ballwin's primary rain season runs through April–June (spring frontal+tornado) and June–August (convective). The driest period is typically October–February.
- Is there a live rain radar for Ballwin?
Yes — RainViewer shows live NEXRAD data for Ballwin at up to 250-meter resolution, updated every 4–6 minutes from KEAX (Pleasant Hill/Kansas City). The hyperlocal radar includes current precipitation, storm direction, and a 2-hour nowcast.
- Can I set a rain alert for Ballwin?
RainViewer Essential sends a rain alert 10–15 minutes before precipitation reaches your saved location in Ballwin, Missouri. Set an alert for your specific address — not just a general Missouri area warning.
Track Rain in Ballwin in Real Time
Rain can arrive in Ballwin faster than a forecast update — a live radar gives you the window to act.
Forecasts cover Missouri broadly. RainViewer shows the cell position over Ballwin right now.
Your weather app shows rain likely near Ballwin. RainViewer shows the cell position and minutes to arrival.
Track rain in Ballwin — free Upgrade to Essential for alerts, forecasts, and full radar history
2-hour forecast in 5-minute slices
see when rain will reach Ballwin
Rain alerts before arrival
set an alert for your Ballwin address
Direction arrows
storms approach Ballwin from southwest
48 hours of radar history
review recent rain patterns in Ballwin
Multiple locations
track Ballwin alongside nearby communities
RainViewer
