Every year since 1818, we have provided long-range weather predictions that help you plan ahead. These forecasts are based on a mathematical and astronomical formula that is guided by the rules set forth by our founding editor. This formula has been altered slightly over the years, but it remains very much the same as the

As you plan your Easter activities, you'll want to know what kind of weather to expect. See what we're forecasting for the US and Canada.

For many, summer is the most anticipated season of the year. But will summer weather cooperate? Are you in our "Severe Weather Zone"? Check our forecast and maps!

Will your Memorial Day weekend be soggy or spectacular? We've got your weather forecast.

Note: We update our seasonal and holiday weather forecasts once a year, so be sure to bookmark this page or signup for our newsletter to get updates! Summer officially begins this year on June 20, 2021, which means Independence Day is right around the corner. Everyone is excited to watch fireworks displays this year—but will

Note: We update our seasonal weather forecasts once a year, so be sure to bookmark this page or signup for our newsletter to get updates! It’s hard to believe summer is winding down! We passed the midpoint of summer on August 6th, and we’re now looking to Labor Day. While the last full day of

Note: We update our seasonal weather forecasts once a year, so be sure to bookmark this page or signup for our newsletter to get updates! We’re getting ready to release our 2020-21 winter weather forecast, (get the forecast now, order a copy of the 2021 edition), but you may be wondering, “what’s in store for

What's in store for spring? Here's what we're forecasting for the US and Canada, plus important spring gardening info you need!

While your New Year’s Eve may look a lot different this year, you'll still want to know the weekend weather! Here's what we're forecasting.