National Weather Service United States Department of Commerce

Severe Thunderstorms With Heavy Rain Possible In The Upper Midwest; Excessive Heat For Central U.S.

Several rounds of strong to severe thunderstorms will be possible from the northern Plains and upper Midwest to the Great Lakes through Friday. Damaging winds, large hail, and flooding will be the primary threats with these storms. Excessive heat will grip the central Plains with heat indices approaching 105 to 110 degrees. Very hot and humid conditions are likely to expand into the Mid Atlantic. Read More >

Click a location below for detailed forecast.

Last Map Update: Fri, Jul. 21, 2017 at 10:08:09 am CDT

National Weather Service Corpus Christi, TXNational Weather Service Corpus Christi, TXNational Weather Service Corpus Christi, TX
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[Update 9 am] Partly cloudy skies and above normal temperatures expected today with highs ranging from the mid and upper 90s to a few degrees beyond 100. A light chop on the bay will increase to a moderate chop this afternoon with south winds becoming southeast at 10-15 knots. Gulf seas will range 2-3 feet out 60 nautical miles east of Padre Island.
The rip current risk remains low today. Although the rip current risk remains low, rip currents are still possible, especially in the vicinity of the South Padre Island Jetties. Hot today under partly cloudy skies with heat index values up to 108 degrees this afternoon. Remember to stay hydrated, seek out shade when possible, wear light- colored and loose-fitting clothing and re-apply sunblock often. Have fun!
High pressure and breezy conditions take control over deep south Texas and the Rio Grande Valley this weekend into the start of next week with high temperatures reaching a few degrees beyond 100 in portions of the mid and upper valley. Chance of showers and thunderstorms returns Tuesday and Wednesday with an inverted trough of low pressure and increasing moisture. Overnight lows remain near or slightly above normal into next week.
Brownsville: Yesterday's high temperature was normal and the low was 1 degree above normal. The record high temperature of 100 degrees was set in 1980. The record low temperature of 69 degrees was set in 1904. No rainfall was reported at Brownsville South Padre Island International Airport. The daily rainfall record of 1.84 inches was set in 1904. Harlingen: Yesterday's high temperature was 6 degrees above normal and the low was 3 degrees above normal. The record high temperature of 103 degrees was set in 1947. The record low temperature of 70 degrees was set in 1913. No rainfall was reported at Valley International Airport. The daily rainfall record of 2.10 inches was set in 2005. McAllen: Yesterday's high temperature was 7 degrees above normal and the low was 5 degrees above normal. The record high temperature of 107 degrees was set in 2009. The record low temperature of 71 degrees was set in 1962. No rainfall was reported at McAllen Miller International Airport. The daily rainfall record of 4.25 inches was set in 2005.

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