Is it raining now in Lewistown?
Light rain
25 JulEnds at 20:10.
Last update: 20:00, 25 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 Lewistown: What You Need to Know
Lewistown, Montana experiences northern Rockies orographic rain and snowmelt. The Lewistown rain radar delivers real-time NEXRAD data from KTFX (Great Falls), updated every 4–6 minutes at up to 250-meter resolution. Storms in this part of Montana 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 Montana region. RainViewer shows the actual cell over Lewistown right now — with direction arrows and a 2-hour nowcast so residents and visitors can make real decisions, not guesses.
Rain by Season in Lewistown
Peak rain season (April–June (snowmelt) and June–August (mountain convection))
Lewistown's highest weather risk aligns with April–June (snowmelt) and June–August (mountain convection). Northern rockies orographic rain and snowmelt 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 Lewistown during June–August, allowing outdoor activities to proceed with lower weather risk.
Why You Need a Rain Radar in Lewistown
Commuters and Drivers in Lewistown
A radar check before leaving gives Lewistown 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 Montana.
Outdoor Planning in Lewistown
Residents and visitors planning outdoor activities in Lewistown 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 Lewistown
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 Lewistown, Montana, the primary NEXRAD source is KTFX (Great Falls).
Lewistown Rain Radar: Frequently Asked Questions
- Does Lewistown flood when it rains?
Lewistown can experience localized flooding during intense rain events, particularly in low-lying areas near drainage channels. Northern rockies orographic rain and snowmelt means runoff can accumulate quickly in parts of Montana. A live radar provides advance warning before conditions develop.
- When is the rainy season in Lewistown?
Lewistown's primary rain season runs through April–June (snowmelt) and June–August (mountain convection). The driest period is typically June–August.
- Is there a live rain radar for Lewistown?
Yes — RainViewer shows live NEXRAD data for Lewistown at up to 250-meter resolution, updated every 4–6 minutes from KTFX (Great Falls). The hyperlocal radar includes current precipitation, storm direction, and a 2-hour nowcast.
- Can I set a rain alert for Lewistown?
RainViewer Essential sends a rain alert 10–15 minutes before precipitation reaches your saved location in Lewistown, Montana. Set an alert for your specific address — not just a general Montana area warning.
Track Rain in Lewistown in Real Time
Rain can arrive in Lewistown faster than a forecast update — a live radar gives you the window to act.
Forecasts cover Montana broadly. RainViewer shows the cell position over Lewistown right now.
Your weather app shows rain likely near Lewistown. RainViewer shows the cell position and minutes to arrival.
Track rain in Lewistown — free Upgrade to Essential for alerts, forecasts, and full radar history
2-hour forecast in 5-minute slices
see when rain will reach Lewistown
Rain alerts before arrival
set an alert for your Lewistown address
Direction arrows
storms approach Lewistown from southwest
48 hours of radar history
review recent rain patterns in Lewistown
Multiple locations
track Lewistown alongside nearby communities
RainViewer
