Oelwein, Iowa Hail Report and Map: August 7, 2026

Published by StormLens · Storm date (Eastern time)

Was there hail in Oelwein, IA on August 7, 2026? Radar estimated hail up to 1.63 inches inside the town limits of Oelwein on August 7, 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 2.79 inches. The strongest part of the swath was about 174 miles southeast of Fairmont, MN. Radar detected hail aloft in this area between about 10:25 a.m. and 1:25 p.m. CT on August 7, 2026.

Radar-estimated hail swath in Oelwein, IA on August 7, 2026; colors show estimated hail sizes

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Hail estimates at a glance

Storm date (Eastern time)August 7, 2026 (Friday)
Maximum radar estimate across the area2.79 inches; strongest part of the swath about 174 miles southeast of Fairmont, MN
Maximum radar estimate inside Oelwein1.63 inches
Share of Oelwein with radar estimates of at least 0.5 inch100%
Approximate radar timingBetween about 10:25 a.m. and 1:25 p.m. CT on August 7, 2026 (Central time)
County coverage includes (0.5 inch or larger)Martin County (396 sq mi), Faribault County (394 sq mi), Worth County (317 sq mi), Buchanan County (309 sq mi), Bremer County (308 sq mi) and Cerro Gordo County (235 sq mi)
Area with radar estimates of 0.5 inch or largerabout 4,208 square miles
Area with radar estimates of 1 inch or largerabout 1,147 square miles
SourceNOAA MRMS radar hail estimates (MESH)

Which towns had hail on August 7, 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.

TownCountyMaximum radar estimate inside town limitsTown area with estimates of at least 0.5 inch
Ryan, IA2.23 inches100%
Blue Earth, MNFaribault County1.7 inches100%
Oelwein, IAFayette County1.63 inches100%
Hanlontown, IA1.51 inches100%
Thornton, IA1.5 inches100%
Tripoli, IABremer County1.46 inches100%
Trimont, MNMartin County1.43 inches100%
Lake Mills, IAWinnebago County1.29 inches100%
Fertile, IA1.22 inches100%
Greene, IAButler County1.16 inches100%
Marble Rock, IA1.16 inches100%
Hazleton, IABuchanan County1.15 inches100%
Rockwell, IACerro Gordo County1.11 inches100%
Olin, IAJones County1.08 inches100%
Clear Lake, IACerro Gordo County1.07 inches46%
Fairbank, IABuchanan County1.06 inches100%
Northwood, IAWorth County1.03 inches90%
Iowa Falls, IAHardin County1.02 inches98%
Readlyn, IABremer County1.02 inches100%
Scarville, IA1.02 inches100%
Plainfield, IA0.98 inch100%
Plymouth, IA0.92 inch100%
Dike, IAGrundy County0.89 inch90%
Alden, IAHardin County0.87 inch70%
Vinton, IABenton County0.86 inch100%
Manchester, IADelaware County0.86 inch46%
Dougherty, IA0.86 inch100%
Garner, IAHancock County0.85 inch77%
Denver, IABremer County0.85 inch65%
Truman, MNMartin County0.85 inch100%
Delhi, IA0.85 inch100%
Rake, IA0.85 inch100%
Monticello, IAJones County0.84 inch34%
Fairmont, MNMartin County0.81 inch36%
Osage, IAMitchell County0.81 inch100%
La Porte City, IABlack Hawk County0.81 inch100%
Morley, IA0.81 inch100%
Emmons, MN0.78 inch100%
Hudson, IABlack Hawk County0.77 inch68%
Forest City, IAWinnebago County0.76 inch63%

How big was the hail in Oelwein?

Radar estimated hail up to 1.63 inches inside the town limits of Oelwein. Among the listed towns, the highest estimate was 2.23 inches inside the limits of Ryan. The maximum estimates in Fairmont, Clear Lake and Iowa Falls were 1.07 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 10:25 a.m. and 1:25 p.m. CT on August 7, 2026. We used 242 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.

Other hail reports for August 7, 2026