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Mon Update: The Front Range Forecast: Hot, dry summer weather

In Brief:

A ridge builds overhead and we get a taste of hot, dry summer weather.  Thunderstorms will return.

Monday Update:

Interesting climatology from the National Weather Service. BUT - DIA only made it to 87F today.

High temperatures are expected reach the 90-degree mark in Denver for the first time this year. The last 90-degree day last year occurred on 9/20/2022, 272 days ago. Our first 90-degree day last year occurred on 5/11/2022. By this time last year, Denver had reached 90 degrees for the 10th time. In the mountains,
expect gusty west to southwest winds this afternoon, with gusts 35-50 mph possible at times above timberline.

End Monday update.

The Forecast Discussion:

We have a ridge, finally, building over the state starting Sunday (Figure 2). This will give us our first good chance of 90F+ weather! (Figure 1)  We see quiet weather in the southwest and intermountain West (Figure 2).

figure1_06172023
Figure 1: the 10 day graphical forecast for Denver from weaatherunderground.com
figure2_06172023
Figure 2: the 500mb upper air forecast map for Sunday night from the GFS and tropicaltidbits.com
figure3_06172023
Figure 3: the Sunday forecast surface map from the NWS

The Longer Range Forecast:

Starting Wednesday, moisture returns and afternoon storm chances pick up again (Figure 1). Over the next 10 days, the rain is mainly confined to the eastern Plains of Colorado (Figure 4).

figure4_06172023
Figure 4: the 10 day GFS rainfall forecast from 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

40°F

UV Index
0 Low
Pressure
29.98 Steady
Visibility
8 miles
Dewpoint
38 °F
Humidity
91%
Wind
ENE 1.7 mph
Gust
3.9 mph
Wind Chill
40 °F

Hourly Forecast

Today
3 AM
38°F
Intermittent clouds
Today
4 AM
37°F
Intermittent clouds
Today
5 AM
37°F
Mostly cloudy
Today
6 AM
37°F
Cloudy
Today
7 AM
36°F
Cloudy
Today
8 AM
41°F
Intermittent clouds
Today
9 AM
43°F
Intermittent clouds
Today
10 AM
46°F
Intermittent clouds
Today
11 AM
50°F
Mostly cloudy
Today
12 PM
52°F
Cloudy
Today
1 PM
55°F
Cloudy
Today
2 PM
57°F
Cloudy

7 Day Forecast

Rain and snow

Sunday

46 °F

Cloudy and cooler; rain and snow showers in the morning, then a couple of brief showers late in the afternoon


Mostly cloudy

Sunday Night

36 °F

Mostly cloudy


Mostly cloudy

Monday

58 °F

Mostly cloudy and warmer


Mostly cloudy

Monday Night

39 °F

Mostly cloudy


Showers

Tuesday

53 °F

Breezy in the morning; mostly cloudy with a couple of showers


Cloudy

Tuesday Night

35 °F

Cloudy


Intermittent clouds

Wednesday

52 °F

Breezy in the morning; otherwise, a blend of sun and clouds


Intermittent clouds

Wednesday Night

31 °F

Increasing clouds


Mostly cloudy

Thursday

39 °F

Some sun, then turning cloudy with a passing shower; chilly


Mostly cloudy

Thursday Night

31 °F

Rather cloudy


Sunrise and Sunset

Sunrise
6:48 AM
Sunset
7:23 PM

Based on AccuWeather data