10-27 Chilly Tomorrow to Halloween, Then Warming

Today (10/27/2014):

Warmest we'll see all week - rain chance builds throughout the day; clouds build as well.

Warmest we’ll see all week – rain chance builds throughout the day; clouds build as well.

 

Tonight:

Best chances for rain will be late-evening to early overnight hours.

Best chances for rain will be late-evening to early overnight hours.

 

Tomorrow:

Some earlier shower chances, cold air aloft will keep things mighty chilly-feeling and cloudy throughout most of the day.

Some earlier shower chances, cold air aloft will keep things mighty chilly-feeling and cloudy throughout most of the day.

 

7-day Forecast:

Brace yourself for some very chilly conditions, starting Tuesday and lasting at least through Saturday afternoon. Sunday is showing signs of a bigger warm-up, possibly lower 60s, so we'll keep an eye on how that plays out.

Brace yourself for some very chilly conditions, starting Tuesday and lasting at least through Saturday afternoon. Sunday is showing signs of a bigger warm-up, possibly lower 60s, so we’ll keep an eye on how that plays out.

 

It’s fall. We know it, and some of us love it. One thing we all know comes with fall in Minneapolis is cold weather, and that’s unfortunately what is on its way.

I still remember the Halloween Blizzard of ’91, as I’m sure many of you do. There was a lot of snow (understatement – it was the all-time record for Minneapolis (28.4″ of snow as measured at the airport – click here for more).

The nice thing is that your Halloween forecast looks dry and sunny. Unfortunately, it looks chilly also.

If you look at the 7-day forecast above, you’ll notice the upper 20s for lows.  That means if your plants have survived so far, they likely won’t survive past Halloween.  Plan on picking your tomatoes (if you have them) before Friday morning!  Essentially, one wave of cold air is enough to push us back now to near-average temps (Minneapolis/St. Paul average high  for today is 53 degrees), and the next pushes us to below-freezing overnight lows. Here is what the computer model forecasts look like:

Two waves of cold: one more typical and one a bit "nastier" for Halloween Friday.

Two waves of cold: one more typical and one a bit “nastier” for Halloween Friday.

 

Those colors really are all you need to see.  The temps they represent are those about 1 mile up in the atmosphere, and they are COLD. The purple shades close to Duluth represent -8 to -10 degree Celsius temps, which translate to about 14 degrees Fahrenheit. Yikes.

Thankfully there is a bigger warm-up on the way. By Sunday we kick out the blues and purples and get some greens back overhead. What does that mean? Possibly some 60s or near-60s for highs on Sunday.

Stay warm this week!

~Meteorologist Aaron Shaffer @AaronShafferWX

AaronForWeb

Aaron Shaffer About Aaron Shaffer
Follow Meteorologist Aaron Shaffer on Twitter. Aaron is a meteorologist who lives in Minneapolis, is on the Midtown Greenway Coalition's board of directors, and is the digital communications and social media associate for the nonprofit Avivo in Minneapolis. Deep down he's a weather geek and has a degree in Atmospheric & Oceanic Sciences from UW-Madison to prove it. He's spent time working at TV stations in Wyoming, South Dakota, and Iowa prior to arriving in Minneapolis to work for WeatherNation and now forecasting for MinnyApple. His favorite weather career moment came while storm chasing for his Iowa station (he went on 40+ storm chases during that time), when he saw a mile-wide EF-4 rated tornado.