Above-average temperatures are expected to last through Wednesday in Pittsburgh.
Sunshine will dominate the early part of the week, as highs through Wednesday will be in the mid-80s. Normal highs are right around 80 F this time of year.
Humidity will also increase toward midweek, which will create even higher AccuWeather.com RealFeel® temperatures.
A break in the sunny weather will come on Wednesday as a shower or thunderstorm will develop later in the afternoon. The threat for storms is expected to remain in the evening hours.
The Pittsburgh Pirates will continue a three-game series against the St. Louis Cardinals Tuesday at 7:05 p.m. EDT. Fans heading to PNC Park should have good weather for baseball, although Wednesday's 12:35 p.m. game could be impacted by storms later in the afternoon.
Stay alert to rapidly changing conditions by using MinuteCast™ if you are headed out for outdoor events. If you hear thunder, seek shelter immediately.
By the late week, cooler air will return, as high temperatures return to the upper 70s on Thursday and Friday.
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A tropical disturbance will sweep across Florida and the Bahamas with enhanced downpours and rough surf into the middle of the week.
On Monday, Aug. 21, the event that millions have anticipated will unfold when the moon passes directly in front of the sun.
Tropical Rainstorm Harvey will continue to track toward Central America with heavy rainfall, gusty thunderstorms and dangerous seas early this week. Harvey could regenerate over the next several days.
Heat and humidity surging from the Great Lakes and Ohio Valley into the Northeast will be the key ingredients for severe weather to develop Tuesday and Tuesday night.
A bout of locally heavy rain will impact northern and western areas of the United Kingdom Sunday night into Tuesday as moisture from Gert crosses the British Isles.
The government of Portugal has issued a state of public calamity as wildfires continue to burn across the country ahead of a weekend heat wave.
In addition to Harvey, two additional tropical features are being monitored in the Atlantic basin but rapid development is unlikely at this time.
A renewed threat for severe weather and flooding will emerge over the midwestern United States into Monday night.