UPDATE: Trump Presidential Inauguration Weather: Rain in Forecast

WASHINGTON, DC — (UPDATE): With a 90 percent chance of rain at the presidential inauguration Friday, the National Park Service on Thursday said it will allow small umbrellas. Here's their message posted to Twitter:

Here's the official weather forecast from the National Weather Service for Friday in Washington, D.C., as of Thursday night: "Periods of rain, mainly after 10 a.m. Patchy fog after 4 p.m. High near 47. Southeast wind 3 to 7 mph. Chance of precipitation is 90%. New precipitation amounts between a tenth and quarter of an inch possible."

Weather for the presidential inauguration of Donald Trump on Friday could be one of the warmest on record, with an expected high of 48 degrees, according to the National Weather Service. The forecast, as of Thursday, includes a 90 percent chance for showers after 8 a.m. According to Weather.com, there is a 70 percent chance of rain at 12 noon, the time Trump is expected to take the oath of office.

Note to those who are planning to be at the inauguration: Umbrellas are not allowed in some areas.

Collapsable umbrellas will be allowed on the parade route as well as the National Mall. Long umbrellas will not be allowed and no umbrellas are allowed in the ticketed area.

The warmest weather for an inauguration was for President Reagan, in 1981, when it was 55 degrees. The normal high temperature for the day is 43 degrees, according to the National Weather Service.

History shows the day has seen wintry weather that has played havoc in the past with the festivities.

Army flamethrowers needed to clear snow in 1961 for JFK inaugural

In 1961, heavy snow fell the night before Democrat John F. Kennedy's inauguration, with federal workers sent home early that day, according to an account of the day by the U.S. Army Corps of Engineers. A strong nor'easter blew 8 inches of snow into town sending organizers into overdrive.

The U.S. Army Corps of Engineers was called in, including 700 troops from Fort Belvoir, to clear the streets overnight and they were helped by 1,700 Boy Scouts and 1,000 D.C. employees. More than 1,000 stranded cars had to be removed on the parade route. The task force employed hundreds of dump trucks, front-end loaders, sanders, plows, rotaries, and even flamethrowers to clear the way.

Kennedy was the last president to wear the traditional stovepipe hat to the inauguration, although some might wonder if Trump will wear something on his head to prevent his mop of hair from blowing in the wind.

President Harrison dies after catching cold at inauguration

In 1841, President William Henry Harrison was sworn into office as the country's ninth president on a cloudy, cold and blustery day, according to a history by the NWS. His speech lasted an hour and 40 minutes and he rode a horse to and from the Capitol without a hat or overcoat, the weather service reported. Harrison developed pneumonia from a lingering cold he caught that day and he died a month later.

Taft takes oath of office indoors due to snow

In 1909, William Howard Taft's inauguration March 4, 1909 (inaugurations moved to Jan. 20 in 1937), was forced indoors in the Senate Chamber of the U.S. Capitol, after 9.8 inches of snow fell on the City. During Reagan's second inauguration, he took the oath of office in the White House due to bitter cold -- it was only 7 degrees at 12 noon. Taft reportedly joked: “I always knew it would be a cold day in hell when I became president.”

Umbrellas at Benjamin Harrison inauguration

In 1889, it poured for the presidential inauguration of Benjamin Harrison. The weather service recorded nearly an inch of rain. He took the oath of office in a downpour under an umbrella. Harrison was the 23rd president, the grandson of William Henry Harrison.

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Top image of 2013 inauguration, by Cpl Daniel Wetzel, Department of Defense, public domain