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Longmont Weather Forecast 8/10-11/2020

In Brief:

Little variation in the weather will occur this week as our ever present ridge remains strong.

Forecast Discussion:

A small shortwave (Figure 1)  will cool us to the upper 80'sF Monday (Figure 3) and bring back enough moisture Tuesday for nearby severe weather (Figure 4). These storms will be VERY widely scattered.  Most people will only see a storm in the distance if you are out at the right time.

A new fire in western Colorado will send thick plumes of smoke over the mountains in a pulse each day - sorry, you might even smell smoke this time (Figure 2). There is a large amount of smoke spreading across the U.S. from fires in the west. 

The Longer Range Forecast:

By Friday, the ridge will slide back to Arizona/New Mexico; we will stay hot and dry (Figure 5). Over the next 5 days, the GFS paints the state with small splashes of random light rain (Figure 6).

The even longer range forecast:

NOAA has issued its probability of temperature and precipitation anomalies for the month of August.  We are on the edge of the high probability of unusual heat covering the entire western U.S. (Figure 7). We are also in the "normal" zone for precipitation, but not far from the better chance of abnormally dry weather zone out west (Figure 8). What you see is what you're likely to get this month.


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

53°F

UV Index
0 Low
Pressure
30.24 Steady
Visibility
9 miles
Dewpoint
47 °F
Humidity
80%
Wind
SW 1.6 mph
Gust
3.2 mph
Wind Chill
53 °F

Hourly Forecast

Today
3 AM
49°F
Mostly clear
Today
4 AM
48°F
Mostly clear
Today
5 AM
48°F
Mostly clear
Today
6 AM
47°F
Mostly clear
Today
7 AM
49°F
Mostly sunny
Today
8 AM
51°F
Mostly sunny
Today
9 AM
56°F
Mostly sunny
Today
10 AM
61°F
Mostly sunny
Today
11 AM
65°F
Mostly sunny
Today
12 PM
68°F
Mostly sunny
Today
1 PM
71°F
Mostly sunny
Today
2 PM
73°F
Mostly sunny

7 Day Forecast

Mostly cloudy w/ t-storms

Wednesday

68 °F

Turning cloudy with thundershowers in the afternoon


Partly cloudy

Wednesday Night

47 °F

Clearing


Mostly sunny

Thursday

76 °F

Mostly sunny and pleasant


Clear

Thursday Night

45 °F

Clear


Sunny

Friday

82 °F

Plenty of sunshine


Mostly cloudy

Friday Night

52 °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