Skip to content

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.
Read more


Comments


Current Weather

Cloudy

Cloudy

50°F

UV Index
0 Low
Pressure
29.9 Falling
Visibility
7 miles
Dewpoint
45 °F
Humidity
82%
Wind
NNW 2.8 mph
Gust
6.2 mph
Wind Chill
50 °F

Hourly Forecast

Today
4 AM
46°F
Clear
Today
5 AM
43°F
Mostly clear
Today
6 AM
41°F
Mostly clear
Today
7 AM
45°F
Partly sunny
Today
8 AM
52°F
Partly sunny
Today
9 AM
59°F
Partly sunny
Today
10 AM
65°F
Intermittent clouds
Today
11 AM
71°F
Intermittent clouds
Today
12 PM
75°F
Intermittent clouds
Today
1 PM
77°F
Intermittent clouds
Today
2 PM
75°F
Thunderstorms
Today
3 PM
73°F
Cloudy

7 Day Forecast

Mostly cloudy w/ t-storms

Thursday

77 °F

Turning cloudy, warm; breezy, a stray thunderstorm this afternoon


Thunderstorms

Thursday Night

47 °F

A thunderstorm in spots this evening; otherwise, considerable cloudiness


Thunderstorms

Friday

69 °F

Mostly cloudy and not as warm with a couple of thundershowers


Thunderstorms

Friday Night

44 °F

Cloudy with a couple of thundershowers


Rain

Saturday

46 °F

Chilly with periods of rain and a thunderstorm


Rain and snow

Saturday Night

39 °F

Cloudy with rain, mixed with a little snow late


Mostly cloudy

Sunday

59 °F

Mostly cloudy and warmer; a stray afternoon thundershower


Partly cloudy

Sunday Night

36 °F

Partly cloudy


Mostly sunny

Monday

71 °F

Mostly sunny, pleasant and warmer


Mostly clear

Monday Night

39 °F

Mainly clear


Sunrise and Sunset

Sunrise
6:07 AM
Sunset
7:50 PM

Based on AccuWeather data