Is it raining now in Cohasset?
Sunny
17 JulNo upcoming precipitation for the next hour.
Last update: 01:00, 17 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 Cohasset: What You Need to Know
Cohasset, Massachusetts experiences nor'easters and tropical remnants. The Cohasset rain radar delivers real-time NEXRAD data from KBOX (Taunton), updated every 4–6 minutes at up to 250-meter resolution. Storms in this part of Massachusetts typically approach from southwest or northeast, and RainViewer's hyperlocal radar shows their exact position and direction so you can act before conditions change.
A standard forecast covers the broader Massachusetts region. RainViewer shows the actual cell over Cohasset right now — with direction arrows and a 2-hour nowcast so residents and visitors can make real decisions, not guesses.
Rain by Season in Cohasset
Peak rain season (March–April (nor'easter peak) and August–September (tropical))
Cohasset's highest weather risk aligns with March–April (nor'easter peak) and August–September (tropical). Nor'easters and tropical remnants 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 (May–June)
Precipitation probability drops in Cohasset during May–June, allowing outdoor activities to proceed with lower weather risk.
Why You Need a Rain Radar in Cohasset
Commuters and Drivers in Cohasset
A radar check before leaving gives Cohasset 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 Massachusetts.
Outdoor Planning in Cohasset
Residents and visitors planning outdoor activities in Cohasset benefit from knowing exactly when rain will arrive from southwest or northeast. A live radar replaces forecast uncertainty with a real decision window.
RainViewer Radar Coverage in Cohasset
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 Cohasset, Massachusetts, the primary NEXRAD source is KBOX (Taunton).
Cohasset Rain Radar: Frequently Asked Questions
- Does Cohasset flood when it rains?
Cohasset can experience localized flooding during intense rain events, particularly in low-lying areas near drainage channels. Nor'easters and tropical remnants means runoff can accumulate quickly in parts of Massachusetts. A live radar provides advance warning before conditions develop.
- When is the rainy season in Cohasset?
Cohasset's primary rain season runs through March–April (nor'easter peak) and August–September (tropical). The driest period is typically May–June.
- Is there a live rain radar for Cohasset?
Yes — RainViewer shows live NEXRAD data for Cohasset at up to 250-meter resolution, updated every 4–6 minutes from KBOX (Taunton). The hyperlocal radar includes current precipitation, storm direction, and a 2-hour nowcast.
- Can I set a rain alert for Cohasset?
RainViewer Essential sends a rain alert 10–15 minutes before precipitation reaches your saved location in Cohasset, Massachusetts. Set an alert for your specific address — not just a general Massachusetts area warning.
Track Rain in Cohasset in Real Time
Rain can arrive in Cohasset faster than a forecast update — a live radar gives you the window to act.
Forecasts cover Massachusetts broadly. RainViewer shows the cell position over Cohasset right now.
Your weather app shows rain likely near Cohasset. RainViewer shows the cell position and minutes to arrival.
Track rain in Cohasset — free Upgrade to Essential for alerts, forecasts, and full radar history
2-hour forecast in 5-minute slices
see when rain will reach Cohasset
Rain alerts before arrival
set an alert for your Cohasset address
Direction arrows
storms approach Cohasset from southwest or northeast
48 hours of radar history
review recent rain patterns in Cohasset
Multiple locations
track Cohasset alongside nearby communities
RainViewer
