textproduct: Omaha/Valley

KEY MESSAGES

- Quiet and pleasant weather Thursday and Friday with high temperatures in the low- to mid-80s under mostly sunny skies.

- Hot temperatures in the 90s and breezy southerly winds develop this weekend. Heat index values may approach 100.

- Periodic thunderstorm chances return this weekend into early next week. The overall chance of rain remains low.

DISCUSSION

Issued at 1106 PM CDT Wed Aug 26 2026

It was a quiet afternoon across the region as surface high pressure builds into the area. It remains quiet tonight with light winds and clear skies. Temperatures fall into the upper 50s and low 60s by sunrise on Thursday. Patchy fog may develop, but this should remain shallow and localized with little to no impacts expected at this time. Light winds and mostly sunny skies last through Thursday afternoon with temperatures climbing into the low- to mid-80s. Friday's weather is expected to remain similar to Thursday. Only minor change is anticipated with temperatures a touch warmer, increasing clouds, and increasing southerly winds by afternoon.

A shortwave trough is forecast to begin approaching the northern Rockies as the persistent upper-level ridge over the western CONUS strengthens this weekend. These concurrent features gradually increases lee troughing across the Great Plains. The result will be the development of breezy south to southwest winds on Saturday. Wind speeds may approach 20 mph with gusts as high as 30 mph. On top of these winds, temperatures and moisture increase. Mid 90s can be expected for high temperatures on Saturday with heat index values pushing towards 100. As the trough draws near, thunderstorms are forecast over the northern Plains. Our area maintains a low chance of thunderstorms Saturday night into Sunday morning as the trough progresses east. We remain on the southern end of this activity and extended CAM guidance is hinting at the southern extend of thunderstorms remaining north of the region. Overall, most will not see rain as the heat continues to build heading into Sunday. High temperatures may reach the mid- to upper-90s with heat index values near 100, marking the hottest day in some time.

Thankfully, the aforementioned trough helps to weaken and flatten the ridge heading into next week. Slightly cooler temperatures return, but remain above normal in the mid- to upper-80s. Periodic thunderstorm chances remain in the forecast during this time, but confidence is low. Rain chances may largely depend on the southern extent of any passing weather disturbances or any mesoscale features (fronts, outflow, MCV, etc.) that can help with thunderstorm development. As the ridge continues to flatten by mid-week, rain chances should gradually increase.

AVIATION /12Z TAFS THROUGH 12Z FRIDAY/

Issued at 541 AM CDT Thu Aug 27 2026

Watching some areas of fog developing along the Missouri River on satellite, including a stretch just north of KOMA. Have introduced a TEMPO for fog moving into this terminal until around 13Z. Otherwise, expect mostly clear skies today with light winds mostly out of the north or northwest this morning shifting back to the south or southeast this evening.

OAX WATCHES/WARNINGS/ADVISORIES

NE...None. IA...None.