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Longmont Weather Forecast: Dry calm weather with mountain snows

In Brief:

Completely normal and dry weather, for now, then a small change later in the week.

Forecast Discussion:

There is not much to cover right now. There are many small short waves rippling across the nation and interesting weather elsewhere, but we are high and dry, presently, with a ridge to our west (Figure 1 below).

 

Figure1_01032021Figure 1: the 500mb upper air forecast map for Sunday AM from the GFS and tropicaltidbits.com

We are sitting with normal high and low temperatures, light winds, clouds at times and nothing newsworthy (Figure 2), 2021 is coming in like a lamb.

 

Figure2_01032021Figure 2: the 10 day graphical forecast from weather5280.com for Longmont, CO.

 

 

The Longer Range Forecast:

Passing short waves will kick a weak cool front down on Tuesday and again Thursday (Figure 2). The cool downs following are still within normal temperature ranges for this time of year. The GFS sees a deep trough passing on Wednesday (a bit different than the weatherunderground model in Figure 2) - Figure 3.

 

Figure3_01032021Figure 3: the 500mb upper air forecast map for Wed early morning from the GFS and tropicaltidbits.com

Either way, this front or the second on Figure 2 will bring a period of weak up slope for the end of the week and a bit more precipitation (Figure 2). The mountains see the better (but light) snowfall chances (Figure 4). Go enjoy the new year - nothing big to report here!

 

Figure4_01032021Figure 4: the 10 day (10:1 ratio) total snowfall forecast from the GFS and weather5280.com

 

 


Current Weather

Mostly cloudy

Mostly cloudy

26°F

UV Index
0 Low
Pressure
30.35 Rising
Visibility
10 miles
Dewpoint
18 °F
Humidity
70%
Wind
N 0 mph
Gust
3.3 mph
Wind Chill
26 °F

12 Hour Forecast

Today
4 AM
24°F
Cloudy
Today
5 AM
23°F
Cloudy
Today
6 AM
23°F
Cloudy
Today
7 AM
23°F
Mostly cloudy
Today
8 AM
25°F
Mostly cloudy
Today
9 AM
26°F
Intermittent clouds
Today
10 AM
28°F
Intermittent clouds
Today
11 AM
32°F
Intermittent clouds
Today
12 PM
35°F
Partly sunny
Today
1 PM
36°F
Partly sunny
Today
2 PM
36°F
Mostly sunny
Today
3 PM
37°F
Mostly sunny

7 Day Forecast

Flurries

Monday

41 °F

Mostly cloudy with a couple of flurries


Flurries

Monday Night

23 °F

Cloudy


Intermittent clouds

Tuesday

37 °F

After a cloudy start, sun returns


Clear

Tuesday Night

24 °F

Clear


Intermittent clouds

Wednesday

56 °F

Times of sun and clouds


Clear

Wednesday Night

32 °F

Clear


Mostly sunny

Thursday

50 °F

Sunshine and patchy clouds


Intermittent clouds

Thursday Night

25 °F

Partly cloudy


Intermittent clouds

Friday

43 °F

Intervals of clouds and sun


Intermittent clouds

Friday Night

25 °F

Partly cloudy


Sunrise and Sunset

Sunrise
7:20 AM
Sunset
5:03 PM

Imagery


Based on AccuWeather data