Granville, IA Live Doppler Radar
Live radar for Granville, Sioux County: every NWS radar combined, rain, snow and ice colors, flash-flood risk, storm tracks and official warnings.
What weather hits Granville?
Since 1996, the National Weather Service has logged damaging thunderstorm winds on 94 days in the Sioux forecast zone and Sioux County — the most common reported hazard around Granville, mostly in June and July. Next come flooding (78 days) and heavy snow & winter storms (47 days).
| Hazard | Days reported | Most recent | Worst on record |
|---|---|---|---|
| Damaging thunderstorm winds | 94 | Jun 2026 | Jul 24, 2005 · 1 death · $50,000 damage |
| Flooding | 78 | Jul 2025 | Jun 20, 2024 · 1 death · $6.5 million damage |
| Heavy snow & winter storms | 47 | Dec 2025 | Jan 14, 2007 · 2 deaths |
| High winds | 32 | Mar 2026 | Oct 26, 2010 · $50,000 damage |
| Blizzards | 29 | Mar 2026 | Jan 14, 2021 · 1 death |
| Extreme cold & wind chill | 28 | Dec 2025 | — |
| Excessive heat | 28 | Jun 2026 | — |
| Flash flooding | 27 | Jun 2026 | Aug 5, 2023 · $1.5 million damage |
Source: NOAA NCEI Storm Events Database, 1996–2026 (the latest year is partial). A "day" is a date with at least one report in the Sioux forecast zone and Sioux County; damage is as reported, not adjusted for inflation.
How much snow does Granville get?
A normal year brings about 27 inches of snow to Granville, based on NOAA's 1991–2020 climate normals for the Alton weather station 7.3 miles away. The snowiest month is usually January (6.4 in).
| Oct | Nov | Dec | Jan | Feb | Mar | Apr | May |
|---|---|---|---|---|---|---|---|
| 0.3 | 3.1 | 5.6 | 6.4 | 4.8 | 5.2 | 1.2 | 0.0 |
Normal snowfall in inches. TALON Pro compares this season's snow at your location with these normals as winter goes on.
Which radars cover Granville?
The closest NEXRAD Doppler radar is KFSD (Sioux Falls, SD), about 60 miles northwest. Radar beams climb as they travel, so the height of the lowest scan over town decides how low in a storm the radar can see.
| Radar | Distance | Lowest beam over Granville | View |
|---|---|---|---|
| KFSD Sioux Falls, SD | 60 mi northwest | 4,500 ft | Good — most storms and steady rain or snow show clearly |
| KOAX Omaha, NE | 118 mi south-southwest | 12,400 ft | Limited — the beam overshoots the lowest part of storms |
| KDMX Des Moines, IA | 140 mi southeast | 16,200 ft | Limited — the beam overshoots the lowest part of storms |
Beam height is the center of the 0.5° scan above the radar, with standard refraction. Mountains near a radar can block it further.
Tornado & hail history near Granville
Since 1950, NOAA has recorded 138 tornadoes within 25 miles of Granville, 27 of them EF2/F2 or stronger. Most came in June and May. The strongest was an F4 on June 23, 1952, which passed about 15 miles south-southeast of town. The most recent was a tornado of unknown strength on July 20, 2024, which touched down about 13 miles northeast of town.
Hail: 358 reports of 1-inch or larger hail within 25 miles since 1955, 40 of them 2 inches or more; the largest was 4.00-inch hail on April 9, 2011.
Source: NOAA Storm Prediction Center — tornadoes 1950–2025, hail 1955–2025. Distances are to each tornado's track; ratings before February 2007 use the original Fujita scale.
On TALON you get Granville's live radar loop, rain/snow/ice colors, flash-flood risk, storm tracks with arrival times and NWS warnings free; close-up radar and rotation detection are part of TALON Pro.
Granville radar FAQ
Where is the nearest weather radar to Granville, IA?
KFSD (Sioux Falls, SD), about 60 miles northwest. KOAX (Omaha, NE) is 118 miles away and also covers the area.
Does radar show snow in Granville?
Yes. TALON colors snow blue, a rain–snow mix pink and freezing rain purple using NOAA's precipitation-type analysis. Over Granville the lowest scan from KFSD is about 4,500 ft up.
Is TALON's radar for Granville free?
Yes — the US radar loop, rain/snow/ice colors, flash-flood risk, storm tracks and NWS warnings are free in any browser. Close-up radar, rotation detection and longer forecasts are part of TALON Pro.
Should I rely on radar for my safety?
No app replaces official warnings. When the National Weather Service issues a warning for Granville, follow it right away — see watch vs. warning.
Radar for nearby towns
- Alton, IA radar 7 mi
- Orange City, IA radar 9 mi
- Marcus, IA radar 12 mi
- Remsen, IA radar 13 mi
- Sheldon, IA radar 14 mi
- Sioux Center, IA radar 16 mi
- Sanborn, IA radar 18 mi
- Hull, IA radar 19 mi
- Le Mars, IA radar 21 mi
- Cherokee, IA radar 23 mi