Olathe, Kansas Hail Report and Map: April 27, 2026
Was there hail in Olathe, KS on April 27, 2026? Radar estimated hail up to 1.57 inches inside the town limits of Olathe on April 27, 2026 (Eastern time). Radar estimates of at least 0.5 inch covered 100% of the town. Across the report area, the maximum radar estimate was 3.31 inches. The strongest part of the swath was about 264 miles east of Kansas City, MO. Radar detected hail aloft in this area between about 11:50 p.m. CT on April 26, 2026 and 9:05 p.m. CT on April 27, 2026.
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Hail estimates at a glance
| Storm date (Eastern time) | April 27, 2026 (Monday) |
|---|---|
| Maximum radar estimate across the area | 3.31 inches; strongest part of the swath about 264 miles east of Kansas City, MO |
| Maximum radar estimate inside Olathe | 1.57 inches |
| Share of Olathe with radar estimates of at least 0.5 inch | 100% |
| Approximate radar timing | Between about 11:50 p.m. CT on April 26, 2026 and 9:05 p.m. CT on April 27, 2026 (Central time) |
| County coverage includes (0.5 inch or larger) | Pike County (757 sq mi), Wabaunsee County (738 sq mi), Macoupin County (676 sq mi), Madison County (581 sq mi), Saline County (556 sq mi) and Shawnee County (551 sq mi) |
| Area with radar estimates of 0.5 inch or larger | about 31,413 square miles |
| Area with radar estimates of 1 inch or larger | about 6,100 square miles |
| Source | NOAA MRMS radar hail estimates (MESH) |
Which towns had hail on April 27, 2026?
Radar estimated hail of at least 0.5 inch inside these town limits, using U.S. Census boundaries. Each percentage is the share of town area with those estimates.
| Town | County | Maximum radar estimate inside town limits | Town area with estimates of at least 0.5 inch |
|---|---|---|---|
| Farmington, MO | Saint Francois County | 2.47 inches | 100% |
| Salina, KS | Saline County | 2.41 inches | 100% |
| Bethalto, IL | Madison County | 2.04 inches | 100% |
| Alton, IL | Madison County | 1.85 inches | 100% |
| Wood River, IL | Madison County | 1.81 inches | 100% |
| Godfrey, IL | Madison County | 1.76 inches | 83% |
| Pacific, MO | Franklin County | 1.76 inches | 99% |
| Topeka, KS | Shawnee County | 1.7 inches | 100% |
| Chesterfield, MO | Saint Louis County | 1.59 inches | 100% |
| Eudora, KS | Douglas County | 1.59 inches | 100% |
| Olathe, KS | Johnson County | 1.57 inches | 100% |
| Marion, IL | Williamson County | 1.56 inches | 66% |
| Litchfield, IL | Montgomery County | 1.5 inches | 100% |
| Lawrence, KS | Douglas County | 1.48 inches | 99% |
| Maryland Heights, MO | Saint Louis County | 1.44 inches | 99% |
| Kansas City, KS | Wyandotte County | 1.41 inches | 55% |
| Wildwood, MO | Saint Louis County | 1.41 inches | 91% |
| Old Jamestown, MO | Saint Louis County | 1.35 inches | 98% |
| Sedalia, MO | Pettis County | 1.32 inches | 77% |
| Lee's Summit, MO | Jackson County | 1.3 inches | 72% |
| Edwardsville, IL | Madison County | 1.29 inches | 98% |
| Glen Carbon, IL | Madison County | 1.26 inches | 99% |
| Evansville, IN | Vanderburgh County | 1.25 inches | 57% |
| Overland Park, KS | Johnson County | 1.2 inches | 87% |
| Gardner, KS | Johnson County | 1.2 inches | 92% |
| Kansas City, MO | Jackson County | 1.18 inches | 29% |
| Grandview, MO | Jackson County | 1.18 inches | 100% |
| Clayton, MO | Saint Louis County | 1.12 inches | 100% |
| St. Louis, MO | City of Saint Louis | 1.11 inches | 52% |
| University City, MO | Saint Louis County | 1.1 inches | 100% |
| Ferguson, MO | Saint Louis County | 1.1 inches | 100% |
| Mount Vernon, IL | Jefferson County | 1.1 inches | 100% |
| Lenexa, KS | Johnson County | 1.09 inches | 86% |
| Spanish Lake, MO | Saint Louis County | 1.08 inches | 100% |
| Belleville, IL | Saint Clair County | 1.06 inches | 42% |
| Springfield, IL | Sangamon County | 1.04 inches | 48% |
| Leawood, KS | Johnson County | 1.04 inches | 89% |
| Florissant, MO | Saint Louis County | 1 inch | 72% |
| O'Fallon, MO | Saint Charles County | 0.96 inch | 53% |
| Columbia, MO | Boone County | 0.81 inch | 35% |
How big was the hail in Olathe?
Radar estimated hail up to 1.57 inches inside the town limits of Olathe. Among the listed towns, the highest estimate was 2.47 inches inside the limits of Farmington. The maximum estimates in Kansas City, St. Louis and Overland Park were 1.2 inches or less. A town's maximum isn't an estimate for every home. Check the swath for estimates around an address.
What time did radar detect hail?
Radar detected hail aloft in this area between about 11:50 p.m. CT on April 26, 2026 and 9:05 p.m. CT on April 27, 2026. We used 3,791 NOAA radar hail detections in this area to estimate the window. We trim outlying detection times when enough are available, then round down to five-minute marks. It doesn't give an arrival time at an address.
Data source and limits
We use NOAA's MRMS radar product MESH (Maximum Estimated Size of Hail) for hail-size estimates. Each town's figure is the maximum inside its Census town limits. The percentage is the town area with estimates of at least 0.5 inch. A town's maximum isn't an estimate for every home. Each storm date covers one calendar day in Eastern time. A late-evening storm west of the Eastern time zone can appear under two dates. Radar estimates don't confirm hail on the ground or roof damage. Hail of 0.5 to 0.75 inch can damage roofs, especially older roofs. An estimate below 1 inch doesn't rule out damage. Read how we calculate sizes and times.