Halloween weather forecast: what to expect for a trick or treat


Boo! Halloween is right around the corner, and tens of millions of kids (and, let’s face it, some candy-hungry adults, too) are ready to hit the streets and sidewalks of the neighborhood for candy. Naturally, spending hours outdoors is at the risk of Mother Nature’s whims.

The two main weather factors will be fronts pushing through the Ohio Valley and into the Pacific Northwest, which will be accompanied by a few rain showers along and ahead of them.

Between the two fronts, a quiet high pressure will spread over the central United States, making for a pleasant and unusually mild evening for many.

Climate Central, an organization that tracks temperature trends over time, notes that October nights in the United States have warmed by about 2.2 degrees since 1970. The unusually warm duration of this Halloween is part of a larger global trend.

Here are your region-by-region Halloween predictions.

Where the atmosphere can play a few tricks:

New England | Mid Atlantic | Southeast | Ohio Valley | Pacific Northwest

The weather here can be a little wet, at least in some parts of the region.

Where the weather will be:

South | Central United States | South West | Rockies | California

Little or no precipitation is expected in this area.

Temperatures will be in the upper 40s in northern New England and in the low 50s elsewhere. Cloud cover, mostly high clouds but with some low to mid level clouds, will hang overhead. The midway full moon, which sets shortly before midnight local time in most places, will shine eerily intermittently across the overcast sky.

A few very light showers cannot be ruled out, but high pressure work to establish may thwart wet weather attempts to more. Instead, expect a freezing evening with only a slim chance of a spooky haze. Chances of precipitation will be highest in southeastern areas near Cape Cod.

Halloween will start well with highs in the mid upper 60s near and east of Interstate 95, although clouds will remain thick. In the evening, readings in the lower 50s will begin to bleed east of the Appalachians, but could hover near 60s closer to shore.

The weather models are divided according to the inclement weather at the time of the trick or treatment. The US model describes little significant precipitation, with occasional light drizzle in a few patches, especially towards higher ground. The European pattern is a little more bullish on some isolated to widely scattered rain showers, with even a few showers in Virginia.

It’s one of those “plan for the worst and hope for the best” forecasts. We recommend a costume that can take a few drops of rain.

There could be a few hot spots with scattered showers or an isolated thunderstorm in the Carolinas during the evening, which could put a damper on Halloween festivities. Likewise, a few spot showers or thunderstorms are possible in Florida, but they would be of the typical inveterate “10-minute dip” variety in the Sunshine State.

If you live in Georgia, there’s reason to be optimistic — it sounds like more showers (emphasis on more) is expected to retreat to the northeast. That said, wet weather can persist and prolong its welcome.

Temperatures will be in the 60s to around 70 degrees, with the hottest temperatures in the east.

If you see a raindrop, don’t worry! Shower activity should be very, very limited and move away to the east. Sure, there may be patchy drizzle or a patch or two of fog, but it’s safe to leave the umbrellas at home. Temperatures will be mostly in the upper 50s and lower 60s.

A low pressure system moving south of British Columbia will bring a cold front into the region. Western Washington and Oregon will likely be wet from overland runoff associated with this disturbance. Temperatures will mostly be in the 50s.

In the south, temperatures will be in the mid-60s, with the exception of the 70s in central and southern Texas, where a downpour or storm is not out of the question. Dew points, a measure of the amount of humidity in the atmosphere, will be in the mid to high 50s. This means that the air is not too humid, but also that it is not is not noticeably dry. To quote Goldilocks, “porridge is just right”.

Perfect time to cheat or treat. Finding rain on a radar map will be harder than finding Waldo in “Where’s Waldo?” »

Expect high 50s in North Dakota, upper 50s in South Dakota, lower to mid 60s in Nebraska and Kansas, and upper 60s in Oklahoma and northern Texas. Towards the Great Lakes, temperatures will be in the mid to high 50s.

In other words, there is no time per se.

There will be no precipitation to speak of. Temperatures will be in the 20s and 30s in the mountains of Colorado, 30s and 40s for Utah and New Mexico, with 30s and 40s in northern Arizona and across Nevada. A burst of heat, with temperatures in the 60s and 70s, will be present in southern Arizona in the desert.

Temperatures will be a few degrees higher than seasonal norms. In the mountains, they will be between 30 and 40 years old, and in the plains, 50 years old. A few showers could creep into the Columbia River Basin in Idaho late in the evening ahead of the Pacific Northwest system, but a washout is not expected.

California will have a typical California climate – with readings in the 60s and 70s in the Central Valley and the South. Conditions are cooling rapidly near the California-Oregon border, with 50s in the lower elevations and 30s and 40s in the hills and mountainous terrain. Light rain could creep into northern California around midnight.

About Jefferey G. Cannon

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