The first two days of the Wimbledon Championships featured unseasonable warmth with a good deal of sunshine.
High temperatures on Monday and Tuesday climbed to around 77 F (25 C). The normal high in London during this time of the year is near 21 C (70 F).
Tennis Channel analyst Justin Gimelstob stated, "The warmer weather translates to faster conditions due to lighter air and the ball moving through the air quicker."
"When the weather is warm, especially for long stretches, the courts get harder and the balls bounce higher creating a dynamic where the ball picks up speed upon contact with the court surface," according to Gimelstob.
A large area of high pressure remains centered west of the United Kingdom, forcing any stormy weather to the north and east of London through Wednesday.
It will be several degrees cooler on Wednesday, but still seasonably warm with partly sunny skies.
The area of high pressure will shift southward on Thursday as a storm system approaches from the west. Dry weather will prevail on Thursday, but rainfall is expected to arrive Thursday night.
Andy Murray of Britain kisses the trophy as he poses for photographers after winning against Novak Djokovic of Serbia in the Men's singles final match at the All England Lawn Tennis Championships in Wimbledon, London, Sunday, July 7, 2013. (AP Photo/Anja Niedringhaus, Pool)
This storm system will then continue to bring the threat for rain to the London area on Friday and Saturday. While the precipitation will not be continuous, any rainfall from Friday into Saturday could be enough to cause delays on the outside courts.
The weather looks to remain unsettled at times during the second week of play as a slow-moving storm system continues to spin over the region.
The greatest threat for rainfall during the second week of play appears to be during the second half of the week and could have an impact on the semi-finals and finals.
Even though the Centre Court roof will keep matches going through any adverse weather, this also creates a different environment for players.
Gimelstob noted "When the roof closes, Wimbledon becomes an indoor event with a completely controlled environment, no sun, nor wind which favors the more aggressive player."
Cold air and flurries are in store for the New Hampshire primary on Tuesday but should not significantly impact voter turnout.
Snow and slippery travel will arrive in the mid-Atlantic states prior to the middle of the week.
Waves of arctic air invading the eastern half of the United States this week will culminate with the coldest weather of the season so far for some areas by the Valentine's Day weekend.
Rounds of snow and slippery travel this week around Boston will be followed by the coldest air of the season so far for the Valentine's Day weekend.
Chilly air will visit New Orleans this year for the annual Mardi Gras celebrations and linger over the city until later in the week.
Arctic air will blow across the Cleveland area during the second half of the week and into the weekend, making for the longest sustained cold wave that the city has seen since last winter.
New England (1741)
Greatest snow of Hard Winter 1740/1741: 3ft near Hartford.
Washington, D.C. (1870)
President Grant signed a measure establishing a Federal meteorological service; later assigned to Signal Corps, U.S. Army. Riverside Ranger Station 1933 -66 deg., U.S. record for Feb. (48 states). Yellowstone Park
Stillwater Reservoir, NY (1934)
State record low temperature -52 degrees.