The US winter weather forecast for 2026 and 2027 came out in October, and people immediately started asking about snow. Here is what the forecast actually says, what it cannot say, and why one word, El Nino, shapes the whole thing.
Updated October 2026. Seasonal outlooks are updated regularly, so check the official page before planning around any of this.
1. What a seasonal forecast really is
This is the part that causes most of the arguing. A seasonal outlook is not a weather forecast. It does not tell you what happens on a given Tuesday.
It tells you which way the whole season is likely to lean, compared with normal. Saying a region leans warm does not mean no cold days. It means the three months added together are more likely to finish above average than below.
2. El Nino is running this winter
El Nino is a pattern where a huge stretch of the Pacific Ocean near the equator gets warmer than usual. The ocean is so big that warming it changes where storms go across the whole planet.
NOAA Climate Prediction Center has an El Nino advisory in place. Its October 2026 discussion said a strong to very strong El Nino is likely to continue through January to March 2027, with a chance above 83 percent. That is a confident statement by seasonal forecasting standards.
3. Who is expected to be warmer
NOAA expects warmer than average temperatures across the northern United States. The strongest lean towards warmth is in the Pacific Northwest, the northern Rockies, the Midwest, the Mississippi Valley, much of the East, and Alaska.
4. Who is expected to be wetter
Wetter than average conditions are most likely across the southern tier, running from the Southwest across to the Southeast, and up the East Coast.
Drier conditions are favoured in Hawaii, much of Alaska, the northern Mountain West, parts of the Great Lakes, and the western Pacific Islands.
There is a practical consequence attached. NOAA expects drought to improve or end by the end of January across the Southwest, the Southern Great Plains, the Southeast and the East Coast.
5. Why the winter weather forecast says nothing about snow
This is the question everyone asks, and the answer is short. NOAA does not forecast seasonal snowfall totals.
The reason is simple once you hear it. Snow depends on temperature and moisture arriving at the same place at the same time, and a few degrees decides between a blizzard and ordinary rain. Nobody can pin that down three months early. Snow forecasts only become reliable a few days out.
6. Two warnings the forecast includes
The outlook itself carries two cautions, and they are worth repeating because they often get stripped out of coverage.
- Another ocean pattern, the Pacific Decadal Oscillation, is in a phase that may weaken the usual El Nino effects in some places.
- Cold outbreaks can still happen. The Climate Prediction Center noted that one or more cold spells are possible in the northwestern lower 48, even though they are unlikely to change the three month average much.
So read it as a lean, not a promise. A warm leaning winter can still hand you a brutal week in January. If a storm does arrive where you live, our guide to a severe thunderstorm watch explains how the alerts work.
How to read a winter weather forecast map
The maps that go with these outlooks confuse people, because they do not show temperatures at all. They show chances.
If your area is shaded for a 40 percent chance of being warmer than average, that is not a prediction of 40 degrees, and it does not mean a 40 percent chance of a warm day. It means that out of the three possible outcomes, warmer than normal, near normal and colder than normal, the warm one is the most likely for the season as a whole.
White or blank areas on the map are not missing data. They mean no option is clearly favoured, so the honest answer is that it could go either way.
What to actually do with this
A seasonal outlook is useful for planning, not for deciding what to wear. A few sensible uses:
- If you are somewhere leaning wetter, check drains and gutters before winter.
- If you heat your home, a warm leaning season may mean lower bills, but do not budget on it.
- For anything in the next week, ignore the seasonal map entirely and use your local forecast.
- For snow specifically, wait. Useful snow forecasts arrive a few days ahead, not months.
How often the outlook is updated
The seasonal outlook is not published once and left alone. It is reissued every month, and the El Nino discussion behind it is updated monthly too. So the version you read in October is not the final word on the season.
That matters when somebody shares a map in January that was actually made in October. Check the date on any outlook before arguing about it. A forecast that has since been revised is not proof of anything except that the forecast changed, which is exactly what forecasts are meant to do as new information arrives.
If you only remember one line from all of this, make it this one. A seasonal outlook tells you which way a whole season is leaning. It does not tell you about any particular day, and it will never tell you how much snow is coming.
How a winter weather forecast is actually made
A seasonal outlook is not a long weather forecast. It is built a completely different way, and knowing how makes it much easier to read.
A normal forecast starts with the current state of the atmosphere and runs the physics forward. That works for about a week. After that, tiny measurement errors grow until the answer is meaningless. This is a hard limit, not a software problem.
A seasonal outlook ignores individual days and looks for things that change slowly enough to tilt a whole season. Oceans are the main one. Sea temperatures shift over months, not hours, and they move the paths storms take. So forecasters look at the ocean, compare it with past years that looked similar, run models many times over, and report which outcome is most likely.
That is why every winter weather forecast is expressed as a chance rather than a number of degrees. The honest output of the method is a lean, not a prediction.
Why El Nino changes weather so far away
It seems odd that warm water in the Pacific affects rain in Georgia. The chain is real and fairly short.
Warm ocean water heats the air above it, and warm air rises. Rising air over an unusually large area changes where the fast, high altitude winds called jet streams sit. Jet streams steer storms. Move the jet stream and you move the storms, including across North America.
In a strong El Nino the southern jet stream tends to be stronger and further south, which is why the southern United States leans wetter while the north leans warmer. That is exactly the pattern in this outlook.
What the outlook does not promise
Three honest limits are built into the forecast, and they are the first things stripped out when a seasonal map gets shared online.
- It is not about any day. A warm leaning season can contain the coldest week you remember.
- Other patterns interfere. NOAA notes a negatively phased Pacific Decadal Oscillation may weaken the usual El Nino effects in places.
- It gets revised. Outlooks are reissued monthly, so an October map is not the final word on February.
Preparing sensibly for the season ahead
A seasonal lean is most useful for slow decisions, the ones you make weeks ahead rather than the morning of. A few that follow from this particular winter weather forecast:
- If you are in the wetter southern lean: clear gutters and drains, check where water pools on your property, and know whether you are in a flood zone.
- If you are in the warmer northern lean: do not assume a mild season. Service the heating anyway, because cold outbreaks are still expected.
- Everywhere: keep torches and chargers somewhere you can find in the dark. Power cuts follow storms regardless of the seasonal average.
- If drought has affected you: NOAA expects improvement by the end of January across several regions, but improvement is not the same as over.
And for the day to day, use your local forecast. The seasonal map answers a different question, and using it to decide what to wear tomorrow is the most common mistake people make with it.
Reading probability without being misled
The single biggest misunderstanding about any winter weather forecast is what the percentages mean, and it is worth a moment because the maps are everywhere.
Each area has three possible outcomes for the season: warmer than average, near average, colder than average. With no information at all, each would be about 33 percent. A shaded map showing 40 percent for warmer means that outcome has been nudged from 33 to 40. It does not mean a 40 percent chance of warm days, and it certainly does not mean 40 degrees.
So even a confidently shaded map still leaves a majority chance that the season comes out near or below average. That is not a weakness in the forecast. It is an accurate statement of how much can honestly be known three months ahead.
Why snowfall is the hardest thing to forecast
Every winter weather forecast gets the same question, and the answer is always disappointing for the same reason.
Snow needs moisture and a temperature profile that stays below freezing all the way down. A difference of one or two degrees decides between heavy snow, sleet and plain rain, and that difference can come down to the exact track of one storm. Seasonal forecasting works with averages over months, which is the wrong tool entirely for a question that turns on a couple of degrees on one afternoon.
This is why NOAA does not publish seasonal snowfall totals. Anyone who does is making a claim the science does not support. Useful snow forecasts arrive a few days ahead, not in October.
What a strong El Nino tends to bring
Patterns are tendencies rather than rules, but they are consistent enough to be worth knowing while this one lasts.
- Southern states: wetter, with more storms tracking along the southern route.
- Northern states: milder on average, because the cold air that usually plunges south stays further north more of the time.
- The Pacific Northwest: often drier than usual, which matters for water supply later in the year.
- Everywhere: the average hides the extremes. A mild season can still deliver a severe cold snap.
NOAA adds a caution worth repeating: another pattern, the Pacific Decadal Oscillation, is in a phase that may weaken the usual El Nino effects in some places. A strong signal is not a guaranteed outcome.
Checking the forecast yourself
You do not need to rely on anyone summary, including this one. The outlook is published openly and reissued monthly, and the El Nino discussion behind it is updated on its own schedule. Both are linked at the end of this article.
When you open them, check the issue date first. A good deal of the winter weather forecast content circulating online in January is a map made the previous autumn, shared as though it were current.
Common myths about the winter weather forecast
A few claims circulate every autumn. They are worth knowing about mainly so you can ignore them with confidence.
- “Forecasters predicted a mild winter and it was freezing, so they are useless.” A seasonal lean is about a three month average. One cold week does not contradict it.
- “The almanac says heavy snow.” Long range almanac forecasts are not produced by the same methods and have no demonstrated skill at that range.
- “A cold snap disproves a warming trend.” Weather is what happens this week. Climate is the long average. They answer different questions.
- “They never update it.” The outlook is reissued monthly, and the ocean discussion behind it is updated on its own schedule.
The reasonable position is in the middle. A winter weather forecast is genuinely useful for slow decisions and genuinely useless for deciding whether to take a coat tomorrow, and it says so itself.
The short version
Everything above, in five lines.
- A strong to very strong El Nino is expected to continue into early 2027.
- The northern United States leans warmer than average across the season.
- The southern tier and the East Coast lean wetter than average.
- Drought is expected to improve or end in several regions by the end of January.
- No seasonal snowfall totals are forecast, because they cannot be known this early.
Common questions
What does the winter weather forecast say for 2026-27? Warmer than average across the northern United States, wetter than average across the southern tier and East Coast, with drought easing in several regions by the end of January.
Will it snow a lot this winter? Nobody can say. NOAA does not forecast seasonal snowfall totals, because snow depends on temperature and moisture lining up on the day.
What is El Nino in simple terms? A warming of the Pacific Ocean near the equator that shifts where storms track around the world.
Does a warm forecast mean no cold days? No. It means the three months together are more likely to finish above average. Cold outbreaks can still happen.
How strong is this El Nino? NOAA said a strong to very strong El Nino is likely through January to March 2027, with a chance above 83 percent.
Sources and further reading
Where the figures and rules above come from, so you can check them:
- The seasonal outlook itself: NOAA, US Winter Outlook
- The El Nino advisory and the odds quoted above: NOAA Climate Prediction Center, ENSO Diagnostic Discussion
- What El Nino and La Nina actually are: National Weather Service, ENSO
Photo credits: Snowplow in Raiskio, Lapland by YosemiteYamper, CC BY-SA 4.0, via Wikimedia Commons. A Toyota Hilux pickup truck with a snowplow 02 by Sadenäyttely, CC BY-SA 4.0, via Wikimedia Commons. Icicles on a street lamp by Sadenäyttely, CC BY-SA 4.0, via Wikimedia Commons. Marine Corps Meteorologists release weather balloon in Norway (7117700) by U.S. Marine Corps photo by Chief Warrant Officer Bryan Nygaard, Public domain, via Wikimedia Commons. Lake Baikal in winter by Sergey Pesterev, CC BY-SA 4.0, via Wikimedia Commons.
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