Is it raining now in Great Falls?
Sunny
9 JulNo upcoming precipitation for the next hour.
Last update: 20:00, 9 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 Great Falls: What You Need to Know
Great Falls, Montana experiences northern Rockies orographic rain and spring snowmelt. The Great Falls rain radar delivers real-time precipitation data from KTFX (Great Falls), 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 Montana typically approach from southwest storm track. RainViewer's hyperlocal radar includes direction arrows and a 2-hour nowcast, so residents and visitors in Great Falls can make informed decisions about travel, outdoor plans, and weather preparation with real advance notice.
Rain by Season in Great Falls
Peak rain season (April–June (snowmelt) and June–August (mountain convection))
Great Falls's highest weather risk aligns with April–June (snowmelt) and June–August (mountain convection). Northern rockies orographic rain and spring snowmelt 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 (June–August)
Precipitation probability drops in Great Falls during June–August. Outdoor activities proceed with lower weather uncertainty during this period.
Why You Need a Rain Radar in Great Falls
Commuters and Drivers in Great Falls
A radar check before leaving gives Great Falls 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 Great Falls
Construction crews, outdoor event staff, and recreation managers in Great Falls use the live radar to get 20–30 minutes of advance notice before rain arrives from southwest storm track. That window is enough to shelter equipment, complete outdoor tasks, or alert attendees.
RainViewer Radar Coverage in Great Falls
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 Great Falls, Montana, the primary NEXRAD source is KTFX (Great Falls), providing hyperlocal radar coverage across the area.
Great Falls Rain Radar: Frequently Asked Questions
- Does Great Falls flood when it rains heavily?
Great Falls can experience localized flooding during intense rain, particularly in low-lying areas near drainage channels and road underpasses. Northern rockies orographic rain and spring snowmelt means runoff can accumulate quickly in parts of Montana. A live radar gives advance warning to avoid flood-prone areas.
- When is the rainy season in Great Falls?
Great Falls's primary rain season runs through April–June (snowmelt) and June–August (mountain convection), driven by northern Rockies orographic rain and spring snowmelt. The driest period is typically June–August, when outdoor activities carry less weather risk.
- Is there a live rain radar for Great Falls?
Yes — RainViewer shows live NEXRAD data for Great Falls at up to 250-meter resolution, updated every 4–6 minutes from KTFX (Great Falls). The map shows current precipitation, storm direction, and a 2-hour nowcast.
- Can I set a rain alert for Great Falls?
RainViewer Essential sends a rain alert 10–15 minutes before precipitation reaches your saved location in Great Falls, Montana. Set an alert for your specific address — not just a general area warning.
Track Rain in Great Falls in Real Time
Rain in Great Falls can arrive from southwest storm track faster than a forecast update.
Forecasts cover Montana broadly. RainViewer shows the exact cell position over Great Falls, updated every 4–6 minutes.
Your weather app shows rain likely near Great Falls. RainViewer shows the cell position and arrival time.
Track rain in Great Falls — free Upgrade to Essential for alerts, forecasts, and full radar history
2-hour forecast in 5-minute slices
see when rain will reach Great Falls
Rain alerts before arrival
set an alert for your Great Falls location
Direction arrows
storms approach Great Falls from southwest storm track
48 hours of radar history
review recent rain patterns in Great Falls
Multiple locations
track Great Falls alongside nearby communities
RainViewer
