No upcoming precipitation for the next hour.
Last update: 18:00, 9 Jul 2026
Free to download * Essential from $0.83 * Prices vary by region and promotions.
Home, office, kids' school - all at once, no switching tabs.
Get notified 15 minutes before rain - while you can still change your plans.
Live radar without opening the app - on your lock screen or home screen.
Mountain View, California experiences Mediterranean climate. The Mountain View rain radar provides hyperlocal radar coverage updated every 4–6 minutes from KVTX (Los Angeles) / KMUX (Mt Umunhum/San Jose) / KBBX (Sacramento), showing exactly when and where precipitation will reach the area — a level of precision that city-wide forecasts cannot match. Rain in Mountain View is shaped by mediterranean climate; 86% of annual rain falls november–march in atmospheric river events; fire-season burn scars amplify mudslide risk.
RainViewer draws on live NEXRAD data from KVTX (Los Angeles) / KMUX (Mt Umunhum/San Jose) / KBBX (Sacramento) to show precipitation at up to 250-meter resolution across Mountain View and surrounding California communities. Storms typically approach from the southwest, and the live map shows the cell's movement vector — giving residents, commuters, and outdoor workers the advance notice they need before conditions change.
Mountain View sees its most active weather during November–March (atmospheric river season). Mediterranean climate drives the primary precipitation risk during this window.
Seasonal transitions bring variable conditions to Mountain View — conditions can shift rapidly and forecast accuracy is lower than during the established wet or dry season.
During winter months, precipitation risk in Mountain View drops significantly. This is the most reliable window for outdoor activities and events, though no season is entirely risk-free.
Mountain View's low-lying areas near river corridors and urban drainage channels can rise rapidly during intense rain events. A live radar showing an intense cell approaching from the southwest gives residents and property managers 20–30 minutes to move vehicles, prepare drainage systems, and alert household members before conditions become dangerous.
Rain events in Mountain View can close roads and create dangerous driving conditions with minimal warning. Checking the radar 20 minutes before departure reveals whether an incoming cell will clear before your route or whether a 30-minute delay will mean dry roads — a practical decision that saves time and reduces flood-crossing risk on Mountain View's most weather-sensitive corridors.
Mountain View's outdoor venues, parks, and recreational areas are directly exposed to the seasonal rain events that characterize California's November–March (atmospheric river season) weather window. A live radar check 30–60 minutes ahead tells event managers and outdoor enthusiasts whether to proceed with outdoor plans or prepare for disruption.
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 Mountain View, California, the primary NEXRAD source is KVTX (Los Angeles) / KMUX (Mt Umunhum/San Jose) / KBBX (Sacramento), providing hyperlocal radar coverage across the area.
Yes — Mountain View's low-lying areas near river corridors and urban drainage channels creates documented flood risk during intense rain events. Mediterranean climate means that rainfall runs off rapidly into drainage channels and low-lying streets. Avoiding low-lying crossings and low underpasses during active radar cells reduces flood risk significantly.
Mountain View's primary rain season runs through November–March (atmospheric river season), when Mediterranean climate drives the most active weather. The driest period is typically winter months, when outdoor activities and travel planning carry the lowest weather risk.
Mountain View's rain character is shaped by Mediterranean climate, which creates localized precipitation patterns that vary significantly across the city. A forecast covers the broader California region; a hyperlocal radar at 250-meter resolution shows the actual cell position over Mountain View in real time, updated every 4–6 minutes from KVTX (Los Angeles) / KMUX (Mt Umunhum/San Jose) / KBBX (Sacramento).
Yes — RainViewer displays live NEXRAD data for Mountain View at up to 250-meter resolution, updated every 4–6 minutes from KVTX (Los Angeles) / KMUX (Mt Umunhum/San Jose) / KBBX (Sacramento). The map shows current precipitation, storm movement direction, and a 2-hour nowcast — so you can see whether the cell approaching from the southwest will reach Mountain View or change track before arrival.
Rain in Mountain View changes fast — a live radar gives you the 20-minute window a forecast never can.
Forecasts cover the region. RainViewer shows the cell position over Mountain View right now.
Your weather app shows rain likely near Mountain View. RainViewer shows the cell's exact position.
Track rain in Mountain View — free Upgrade to Essential for alerts, forecasts, and full radar history
see when rain will reach Mountain View
set an alert for your Mountain View location
storms approach Mountain View from the southwest
understand recent rain patterns in Mountain View
track Mountain View alongside nearby towns simultaneously