Longmont Weather Forecast: Seasonable dry weather for the forseeable future

In brief:

We warm to seasonable temperatures with dry conditions looking 10 days out.

Forecast discussion:

A dry trough is zipping past the state on Saturday (Halloween) with northwest flow aloft over the state (Figure 1 below).

Figure 1: the 500mb upper air forecast map for Saturday noon from the GFS and tropicaltidbits.com

Local fires are still smouldering at a very low level, but upstream fires in other states will send a bit of haze our way (Figure 2).

Figure 2: the HRRR smoke at all levels forecast map for Saturday (Halloween) afternoon from NOAA.

We will be cooler than normal for the weekend and dry.  A cold front arriving early Saturday morning will kick up winds. Winds in the mountains will blow stronger than firefighters would like Saturday (Figure 3).

Figure 3: the 10 day graphical forecast from weather5280.com for Longmont, CO.

The longer-range forecast:

As the week wears on, a semi-strong ridge will return to the West and central U.S., warming us back to a bit above normal (Figure 4 and 3).

Figure 4: the 500mb upper air forecast map for Tuesday noon from the GFS and tropicaltidbits.com

Sadly, we remain very dry for the next 10 days. The GFS gives the mountains a light sprinkle about a week from now (Figure 5). Snowfall remains very light in the northern mountains as well (Figure 6).

The Halloween forecast:

At 6 p.m.: The temperature will be 46 degrees with winds from the northeast at 6 to 10mph and clear skies.
At 9 p.m.: The temperature will be 37 degrees with light winds from the east at 3 mph under clear skies and a full moon.

I saw on another site that we've not had a full moon (and Blue Moon — second full moon in a month) on Halloween night since 1944. Strange. Sounds like 2020.

Election Day forecast:

Tuesday will be partly cloudy with a high near 70 degrees and  low near 38. There will be no precipitation and light west winds. You won't notice the weather in Colorado on Election Day.

Figure 5: the 10 day precipitation total from the GFS and weather5280.com

Figure 6: the 10 day snowfall total from the GFS and weather5280.com