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Longmont weather forecast: Warm spring weather

The video forecast for this week.

In Brief:

Incredibly nice, warm, dry weather settles in for most of the next ten days. Spring!

Friday PM update:

The incredible warm weather continues through Monday. There are hints of showers Tuesday.

 

Figure1u_04022021Figure 1 update: the 10 day graphical forecast from weatherunderground.com for Longmont, CO.

 

End Friday PM update.

Forecast Discussion:

High pressure is here!  (Figure 1). Each day, temperatures rise to record and above record levels (Figure 2) with very little chance of precipitation. Figure 3 shows the big ridge over the area by the end of the week. There is some concern of fire danger as these "hot" dry conditions persist for the next week and beyond. But it will feel great!

 

Figure1_04012021Figure 1: the surface forecast analysis for Friday AM from NCEP.

 

Figure2_04012021Figure 2: the 10 day graphical forecast from weatherunderground.com for Longmont, CO.

 

Figure3_04012021Figure 3: the 500mb upper air forecast map for Monday noon from the GFS and tropicaltidbits.com

 

The Longer-Range Forecast:

We could set an all-time Easter high-temperature record and do the same on Monday (Figure 4) with temperatures over 20 degrees above normal.  We should expect nearly nothing in the way of snow (Figure 5) or rain (Figure 6). Get out and enjoy this beautifulness.

 

 

Figure4_04012021Figure 4: the temperature anomaly (departure from normal) for Monday noon from tropicaltidbits.com

 

Figure5_04012021Figure 5: the 10 day (10:1 ratio) total snowfall forecast from the GFS and weather5280.com

 

Figure6_04012021Figure 6: the 10 day total precipitation forecast from the GFS and weather5280.com

 

 


About the Author: John Ensworth

John Ensworth used to work from Longmont as the PI for the NASA through the IGES (The Institute for Global Environmental Strategies). He now teaches technology, algebra, astronomy, meteorology, film school, and Lego robotics to middle/high school.
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Current Weather

Cloudy

Cloudy

15°F

UV Index
0 Low
Pressure
29.77 Rising
Visibility
8 miles
Dewpoint
9 °F
Humidity
76%
Wind
NE 2.2 mph
Gust
4.3 mph
Wind Chill
15 °F

Hourly Forecast

Today
6 PM
16°F
Flurries
Today
7 PM
16°F
Cloudy
Today
8 PM
15°F
Cloudy
Today
9 PM
14°F
Snow
Today
10 PM
13°F
Snow
Today
11 PM
12°F
Snow
Tomorrow
12 AM
12°F
Snow
Tomorrow
1 AM
11°F
Cloudy
Tomorrow
2 AM
10°F
Snow
Tomorrow
3 AM
10°F
Snow
Tomorrow
4 AM
8°F
Snow
Tomorrow
5 AM
8°F
Snow

7 Day Forecast

Flurries

Tuesday

16 °F

Cloudy and much colder with snow flurries; watch for slippery spots early


Snow

Tuesday Night

6 °F

Breezy this evening; frigid with snow and flurries at times, accumulating 1-3 inches; untreated surfaces will be slippery


Snow

Wednesday

14 °F

Occasional morning snow, accumulating 3-6 inches; otherwise, cloudy and cold; storm total snowfall 4-8"; expect slippery travel early, then some improvement


Mostly cloudy w/ flurries

Wednesday Night

-7 °F

An evening flurry or two; otherwise, partly cloudy and frigid; extreme cold can be dangerous for outdoor activities


Intermittent clouds

Thursday

29 °F

Cold with intervals of clouds and sunshine; extreme cold can be dangerous for outdoor activities


Mostly cloudy

Thursday Night

16 °F

Becoming cloudy


Partly sunny

Friday

48 °F

Milder with partial sunshine; an afternoon shower in the area


Snow

Friday Night

23 °F

Snow and flurries at times in the evening; otherwise, low clouds


Dreary

Saturday

32 °F

Colder with low clouds; a snow shower around in the afternoon


Dreary

Saturday Night

14 °F

Low clouds


Sunrise and Sunset

Sunrise
6:59 AM
Sunset
5:31 PM

Based on AccuWeather data