2018 Long Range Weather Forecast for Washington, DC

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See long range weather forecasts for the next 60 days from The Old Farmer’s Almanac! Our long range forecasts can be used to make more informed decisions about future plans that depend on the weather, from vacations and weddings to sporting events and outdoor activities.

To see long term forecasts for the entire year, pick up a copy of the annual Old Farmer’s Almanac, available online and in stores.

Note: Long range forecasts are regional, not city-specific. If your city is located inside a region, the region's forecast will apply to you.

Free 2-Month Weather Forecast

April 2018 Long Range Weather Forecast for Atlantic Corridor
DatesWeather Conditions
Apr 1-7Showers, then sunny, cool
Apr 8-17Scattered showers, turning warm
Apr 18-20Rainy, cool
Apr 21-25Showers, turning warm
Apr 26-30T-storms, then sunny, cool
Apriltemperature 53° (1° above avg.)
precipitation 4" (0.5" above avg.)

May 2018 Long Range Weather Forecast for Atlantic Corridor
DatesWeather Conditions
May 1-6T-storms, then sunny, cool
May 7-15Rainy periods, cool
May 16-21Sunny north, rainy periods south; cool
May 22-31Scattered t-storms, warm
Maytemperature 61° (1° below avg.)
precipitation 3" (avg.)

Annual Weather Summary: November 2017 to October 2018

Winter temperatures will be above normal, on average, with the coldest periods in early to mid-December, late December, early January, and early February. Precipitation will be above normal, with below-normal snowfall. The snowiest periods will occur in late December and mid- to late January. April and May will be slightly rainier than normal, with near-normal temperatures. Summer will be hotter than normal, with the hottest periods in early June, early July, and early and mid- to late August. Rainfall will be below normal in the north and above in the south. September and October will be warmer and drier than normal.

Map showing Old Farmer's Almanac long range weather region number 2

About the Atlantic Corridor Region

The Atlantic Corridor long range weather region includes all or part of the following states: CONNECTICUT (Bridgeport, Hartford, New Haven, Stamford, Waterbury), DELAWARE (Bear, Dover, Hockessin, Newark, Wilmington), DISTRICT OF COLUMBIA (Friendship Heights, Washington), MARYLAND (Baltimore, Columbia, Dundalk, Ellicott City, Silver Spring), MASSACHUSETTS (Boston, Brockton, Cambridge, Springfield, Worcester), NEW JERSEY (Edison, Elizabeth, Jersey City, Newark, Paterson), NEW YORK (Brentwood, Hempstead, New Rochelle, New York, Yonkers), PENNSYLVANIA (Chester, Levittown, Norristown, Philadelphia, Radnor), RHODE ISLAND (Cranston, East Providence, Pawtucket, Providence, Warwick), VIRGINIA (Alexandria, Arlington, Hampton, Newport News, Richmond).

Atlantic Corridor Neighboring Regions

Here are the regions that neighbor the Atlantic Corridor long range weather region:

Temperature and Precipitation November 2017 to October 2018

Temperature and Precipitation Graph

Reader Comments

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May 19 or May 25

I'd like to take my family camping in Freehold, Turkey Swamp and can't decide which weekend is best weatherwise. The 19th or Memorial weekend in May. Advise Please!

Outdoor Event

I'm planning a huge party for May 19, 2018. What is the chance of the weather being warm with no rain?

weather prediction

Hi! Our prediction for May 16-21, 2018, in Region 2 (Atlantic Corridor) is “Sunny north, rainy periods south; cool.” Depending on where you are in this region, we predict either sunny or sometimes rainy, but overall, cool in both places. Traditionally, we are about 80 percent accurate. So, if you are in the southern part of the region, chances are about 20 percent for a sunny, warm day. In the north, the chances are a little better, perhaps. We hope that the weather cooperates and that you have a great party!

June Wedding

Our wedding is planned for June 16, what is the prediction for that day and the rest of that weekend?

June 16 Region 2

Hello! For June 10-18, 2018, in Region 2 (Atlantic Corridor), we are predicting “Scattered showers, cool.” No matter what the weather turns out to be, we wish you a joyous wedding day! Congratulations!

Accuracy

This seasons almanac has to have a accuracy of less than 50%. I just threw my copy in the fire.

weather forecast

Actually, the past winter has been a pretty good forecast. Not sure if you're reading it right. I'd say maybe 80%.

Help

Tell me it is not true that this may be a rainy summer on Cape Cod. Noah’s ark will be parking in my driveway if this happens!!!

April 2 Snow storm!

Hey you guys only said showers. Weather channel and others keep getting forecast wrong. What’s going on. First it was supposed to be less than inch of snow Now 2 to 3 now changed to 4 to 6 along the coast. When can I work on my garden?

Weather & Gardening

During the transition from one season to another, it’s especially difficult to say whether a storm will bring rain or snow—and how much of either there will be!

As for gardening, check out our Frost Dates Calculator to see the average date of the last spring frost in your area. This should give you an idea of when temperatures typically begin to warm up. Also take a look at our Planting Calendar to see the best times to start and plant seeds in your area.

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