Is it raining now in Harrison?
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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 Harrison: What You Need to Know
Harrison, Michigan experiences Great Lakes lake-effect and summer convection. The Harrison 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 Harrison right now — with direction arrows and a 2-hour nowcast so residents and visitors can make real decisions, not guesses.
Rain by Season in Harrison
Peak rain season (May–August (convective) and November–January (lake-effect))
Harrison'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 Harrison during June–August, allowing outdoor activities to proceed with lower weather risk.
Why You Need a Rain Radar in Harrison
Commuters and Drivers in Harrison
A radar check before leaving gives Harrison 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 Harrison
Residents and visitors planning outdoor activities in Harrison 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 Harrison
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 Harrison, Michigan, the primary NEXRAD source is KDTX (Detroit/Pontiac).
Harrison Rain Radar: Frequently Asked Questions
- Does Harrison flood when it rains?
Harrison 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 Harrison?
Harrison'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 Harrison?
Yes — RainViewer shows live NEXRAD data for Harrison 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 Harrison?
RainViewer Essential sends a rain alert 10–15 minutes before precipitation reaches your saved location in Harrison, Michigan. Set an alert for your specific address — not just a general Michigan area warning.
Track Rain in Harrison in Real Time
Rain can arrive in Harrison faster than a forecast update — a live radar gives you the window to act.
Forecasts cover Michigan broadly. RainViewer shows the cell position over Harrison right now.
Your weather app shows rain likely near Harrison. RainViewer shows the cell position and minutes to arrival.
Track rain in Harrison — free Upgrade to Essential for alerts, forecasts, and full radar history
2-hour forecast in 5-minute slices
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Rain alerts before arrival
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Direction arrows
storms approach Harrison from southwest
48 hours of radar history
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