Is it raining now in Greenville?
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9 JulNo upcoming precipitation for the next hour.
Last update: 20:00, 9 Jul 2026
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Rain in Greenville: What You Need to Know
Greenville, Wisconsin experiences Great Lakes convection and Fox River flooding. The Greenville rain radar delivers real-time precipitation data from KMKX (Sullivan), 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 Wisconsin typically approach from southwest. RainViewer's hyperlocal radar includes direction arrows and a 2-hour nowcast, so residents and visitors in Greenville can make informed decisions about travel, outdoor plans, and weather preparation with real advance notice.
Rain by Season in Greenville
Peak rain season (April–August (convective) and November–January (lake-effect))
Greenville's highest weather risk aligns with April–August (convective) and November–January (lake-effect). Great lakes convection and fox river flooding 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 Greenville during January–February. Outdoor activities proceed with lower weather uncertainty during this period.
Why You Need a Rain Radar in Greenville
Commuters and Drivers in Greenville
A radar check before leaving gives Greenville 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 Greenville
Construction crews, outdoor event staff, and recreation managers in Greenville use the live radar to get 20–30 minutes of advance notice before rain arrives from southwest. That window is enough to shelter equipment, complete outdoor tasks, or alert attendees.
RainViewer Radar Coverage in Greenville
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 Greenville, Wisconsin, the primary NEXRAD source is KMKX (Sullivan), providing hyperlocal radar coverage across the area.
Greenville Rain Radar: Frequently Asked Questions
- Does Greenville flood when it rains heavily?
Greenville can experience localized flooding during intense rain, particularly in low-lying areas near drainage channels and road underpasses. Great lakes convection and fox river flooding means runoff can accumulate quickly in parts of Wisconsin. A live radar gives advance warning to avoid flood-prone areas.
- When is the rainy season in Greenville?
Greenville's primary rain season runs through April–August (convective) and November–January (lake-effect), driven by Great Lakes convection and Fox River flooding. The driest period is typically January–February, when outdoor activities carry less weather risk.
- Is there a live rain radar for Greenville?
Yes — RainViewer shows live NEXRAD data for Greenville at up to 250-meter resolution, updated every 4–6 minutes from KMKX (Sullivan). The map shows current precipitation, storm direction, and a 2-hour nowcast.
- Can I set a rain alert for Greenville?
RainViewer Essential sends a rain alert 10–15 minutes before precipitation reaches your saved location in Greenville, Wisconsin. Set an alert for your specific address — not just a general area warning.
Track Rain in Greenville in Real Time
Rain in Greenville can arrive from southwest faster than a forecast update.
Forecasts cover Wisconsin broadly. RainViewer shows the exact cell position over Greenville, updated every 4–6 minutes.
Your weather app shows rain likely near Greenville. RainViewer shows the cell position and arrival time.
Track rain in Greenville — 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 Greenville from southwest
48 hours of radar history
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