Starting at 21:10.
Last update: 21:00, 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.
Casselton, North Dakota experiences Red River spring flooding and plains convection. The Casselton rain radar delivers real-time NEXRAD data from KBIS (Bismarck), updated every 4–6 minutes at up to 250-meter resolution. Storms in this part of North Dakota 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 North Dakota region. RainViewer shows the actual cell over Casselton right now — with direction arrows and a 2-hour nowcast so residents and visitors can make real decisions, not guesses.
Casselton's highest weather risk aligns with March–May (snowmelt flooding) and May–June (convective). Red river spring flooding and plains convection drives precipitation events in this region.
Seasonal transitions bring variable conditions — a live radar is more reliable than a forecast during these less predictable windows.
Precipitation probability drops in Casselton during July–August, allowing outdoor activities to proceed with lower weather risk.
A radar check before leaving gives Casselton 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 North Dakota.
Residents and visitors planning outdoor activities in Casselton benefit from knowing exactly when rain will arrive from southwest. A live radar replaces forecast uncertainty with a real decision window.
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 Casselton, North Dakota, the primary NEXRAD source is KBIS (Bismarck).
Casselton can experience localized flooding during intense rain events, particularly in low-lying areas near drainage channels. Red river spring flooding and plains convection means runoff can accumulate quickly in parts of North Dakota. A live radar provides advance warning before conditions develop.
Casselton's primary rain season runs through March–May (snowmelt flooding) and May–June (convective). The driest period is typically July–August.
Yes — RainViewer shows live NEXRAD data for Casselton at up to 250-meter resolution, updated every 4–6 minutes from KBIS (Bismarck). The hyperlocal radar includes current precipitation, storm direction, and a 2-hour nowcast.
RainViewer Essential sends a rain alert 10–15 minutes before precipitation reaches your saved location in Casselton, North Dakota. Set an alert for your specific address — not just a general North Dakota area warning.
Rain can arrive in Casselton faster than a forecast update — a live radar gives you the window to act.
Forecasts cover North Dakota broadly. RainViewer shows the cell position over Casselton right now.
Your weather app shows rain likely near Casselton. RainViewer shows the cell position and minutes to arrival.
Track rain in Casselton — free Upgrade to Essential for alerts, forecasts, and full radar history
see when rain will reach Casselton
set an alert for your Casselton address
storms approach Casselton from southwest
review recent rain patterns in Casselton
track Casselton alongside nearby communities