Is it raining now in South Lyon?
Moderate rain
9 JulEnds at 22:10.
Last update: 22:00, 9 Jul 2026
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Rain in South Lyon: What You Need to Know
South Lyon, Michigan experiences Great Lakes lake-effect and summer convection. The South Lyon rain radar delivers real-time NEXRAD data from KDTX (Detroit/Pontiac), updated every 4–6 minutes at up to 250-meter resolution. Storms in this part of Michigan 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 Michigan region. RainViewer shows the actual cell over South Lyon right now — with direction arrows and a 2-hour nowcast so residents and visitors can make real decisions, not guesses.
Rain by Season in South Lyon
Peak rain season (May–August (convective) and November–January (lake-effect))
South Lyon's highest weather risk aligns with May–August (convective) and November–January (lake-effect). Great lakes lake-effect and summer convection 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 (June–August)
Precipitation probability drops in South Lyon during June–August, allowing outdoor activities to proceed with lower weather risk.
Why You Need a Rain Radar in South Lyon
Commuters and Drivers in South Lyon
A radar check before leaving gives South Lyon 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 Michigan.
Outdoor Planning in South Lyon
Residents and visitors planning outdoor activities in South Lyon 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 South Lyon
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 South Lyon, Michigan, the primary NEXRAD source is KDTX (Detroit/Pontiac).
South Lyon Rain Radar: Frequently Asked Questions
- Does South Lyon flood when it rains?
South Lyon can experience localized flooding during intense rain events, particularly in low-lying areas near drainage channels. Great lakes lake-effect and summer convection means runoff can accumulate quickly in parts of Michigan. A live radar provides advance warning before conditions develop.
- When is the rainy season in South Lyon?
South Lyon's primary rain season runs through May–August (convective) and November–January (lake-effect). The driest period is typically June–August.
- Is there a live rain radar for South Lyon?
Yes — RainViewer shows live NEXRAD data for South Lyon at up to 250-meter resolution, updated every 4–6 minutes from KDTX (Detroit/Pontiac). The hyperlocal radar includes current precipitation, storm direction, and a 2-hour nowcast.
- Can I set a rain alert for South Lyon?
RainViewer Essential sends a rain alert 10–15 minutes before precipitation reaches your saved location in South Lyon, Michigan. Set an alert for your specific address — not just a general Michigan area warning.
Track Rain in South Lyon in Real Time
Rain can arrive in South Lyon faster than a forecast update — a live radar gives you the window to act.
Forecasts cover Michigan broadly. RainViewer shows the cell position over South Lyon right now.
Your weather app shows rain likely near South Lyon. RainViewer shows the cell position and minutes to arrival.
Track rain in South Lyon — free Upgrade to Essential for alerts, forecasts, and full radar history
2-hour forecast in 5-minute slices
see when rain will reach South Lyon
Rain alerts before arrival
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Direction arrows
storms approach South Lyon from southwest
48 hours of radar history
review recent rain patterns in South Lyon
Multiple locations
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