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Longmont Weather Forecast 8/7-9/2020

In Brief:

The high is back - the air is dry - hot and dry weather will hold for most of the next week.

Forecast Discussion:

The ridge has shifted as predicted shuttling the moisture flow off to the east (see green line in Figure 1 in the gallery above).  Dry air (red and orange colors and the orange arrow) is flowing across the state. There is a low off the west coast with a ridge to our east (Figure 2).  Southwest flow across the state will warm air a bit more as it flows downslope off the Rockies. The weekend will see upper 90'sF weather again and dry conditions (Figure 3).

The Longer Range Forecast:

Over the next 5 days, rainfall will be very llight and confined to the far eastern and southeastern plains of Colorado (Figure 4). The only fly in our summer ointment will be a small shortwave approaching and passing the state Monday and Tuesday (Figure 5, wiggle in the black 500mb line over Colorado).  We briefly cool to the upper 80'sF Monday and have a very small chance of thunderstorms those two afternoons (Figure 3).

This is the last 3 day post for my last summer vacation week.


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

Partly cloudy

Partly cloudy

57°F

UV Index
0 Low
Pressure
30.25 Rising
Visibility
8 miles
Dewpoint
45 °F
Humidity
64%
Wind
NNE 2.2 mph
Gust
3.9 mph
Wind Chill
57 °F

Hourly Forecast

Today
9 PM
55°F
Intermittent clouds
Today
10 PM
54°F
Partly cloudy
Today
11 PM
53°F
Mostly clear
Tomorrow
12 AM
52°F
Mostly clear
Tomorrow
1 AM
51°F
Partly cloudy
Tomorrow
2 AM
50°F
Mostly clear
Tomorrow
3 AM
49°F
Mostly clear
Tomorrow
4 AM
48°F
Mostly clear
Tomorrow
5 AM
48°F
Mostly clear
Tomorrow
6 AM
47°F
Mostly clear
Tomorrow
7 AM
49°F
Mostly sunny
Tomorrow
8 AM
51°F
Mostly sunny

7 Day Forecast

Mostly cloudy w/ t-storms

Wednesday

68 °F

Turning cloudy with thundershowers this afternoon


Partly cloudy

Wednesday Night

47 °F

Clearing


Mostly sunny

Thursday

77 °F

Mostly sunny and pleasant


Clear

Thursday Night

45 °F

Clear


Sunny

Friday

84 °F

Plenty of sunshine


Mostly cloudy

Friday Night

50 °F

Increasing clouds


Partly sunny

Saturday

83 °F

Partly sunny


Mostly clear

Saturday Night

53 °F

Clear to partly cloudy


Partly sunny

Sunday

86 °F

Partial sunshine


Mostly clear

Sunday Night

50 °F

Mainly clear


Sunrise and Sunset

Sunrise
6:43 AM
Sunset
7:06 PM

Based on AccuWeather data