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9 JulNo upcoming precipitation for the next hour.
Last update: 21:00, 9 Jul 2026
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Rain in Catonsville: What You Need to Know
Catonsville, Maryland experiences Chesapeake Bay influence and mid-Atlantic nor'easters. The Catonsville rain radar delivers real-time precipitation data from KLWX (Sterling VA), updated every 4–6 minutes at up to 250-meter resolution — showing exactly when and where rain will arrive, not just whether it might.
Storms in this part of Maryland typically approach from southwest or northeast. RainViewer's hyperlocal radar includes direction arrows and a 2-hour nowcast, so residents and visitors in Catonsville can make informed decisions about travel, outdoor plans, and weather preparation with real advance notice.
Rain by Season in Catonsville
Peak rain season (June–September (convective) and October–April (nor'easters))
Catonsville's highest weather risk aligns with June–September (convective) and October–April (nor'easters). Chesapeake bay influence and mid-atlantic nor'easters drives the primary precipitation events across this region.
Transition months
Seasonal transitions bring variable conditions. A live radar is more reliable than a forecast during these windows when storm behavior is least predictable.
Drier season (January–February)
Precipitation probability drops in Catonsville during January–February. Outdoor activities proceed with lower weather uncertainty during this period.
Why You Need a Rain Radar in Catonsville
Commuters and Drivers in Catonsville
A radar check before leaving gives Catonsville drivers 20+ minutes to adjust departure timing, choose alternate routes, or wait out a fast-moving cell. Real-time radar is more actionable than a forecast probability for daily commute decisions.
Outdoor Workers and Event Planners in Catonsville
Construction crews, outdoor event staff, and recreation managers in Catonsville use the live radar to get 20–30 minutes of advance notice before rain arrives from southwest or northeast. That window is enough to shelter equipment, complete outdoor tasks, or alert attendees.
RainViewer Radar Coverage in Catonsville
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, preserving the raw scan data rather than smoothing it into regional averages. For Catonsville, Maryland, the primary NEXRAD source is KLWX (Sterling VA), providing hyperlocal radar coverage across the area.
Catonsville Rain Radar: Frequently Asked Questions
- Does Catonsville flood when it rains heavily?
Catonsville can experience localized flooding during intense rain, particularly in low-lying areas near drainage channels and road underpasses. Chesapeake bay influence and mid-atlantic nor'easters means runoff can accumulate quickly in parts of Maryland. A live radar gives advance warning to avoid flood-prone areas.
- When is the rainy season in Catonsville?
Catonsville's primary rain season runs through June–September (convective) and October–April (nor'easters), driven by Chesapeake Bay influence and mid-Atlantic nor'easters. The driest period is typically January–February, when outdoor activities carry less weather risk.
- Is there a live rain radar for Catonsville?
Yes — RainViewer shows live NEXRAD data for Catonsville at up to 250-meter resolution, updated every 4–6 minutes from KLWX (Sterling VA). The map shows current precipitation, storm direction, and a 2-hour nowcast.
- Can I set a rain alert for Catonsville?
RainViewer Essential sends a rain alert 10–15 minutes before precipitation reaches your saved location in Catonsville, Maryland. Set an alert for your specific address — not just a general area warning.
Track Rain in Catonsville in Real Time
Rain in Catonsville can arrive from southwest or northeast faster than a forecast update.
Forecasts cover Maryland broadly. RainViewer shows the exact cell position over Catonsville, updated every 4–6 minutes.
Your weather app shows rain likely near Catonsville. RainViewer shows the cell position and arrival time.
Track rain in Catonsville — free Upgrade to Essential for alerts, forecasts, and full radar history
2-hour forecast in 5-minute slices
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Direction arrows
storms approach Catonsville from southwest or northeast
48 hours of radar history
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