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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

Sunny

Sunny

34°F

UV Index
1 Low
Pressure
30.21 Rising
Visibility
6 miles
Dewpoint
22 °F
Humidity
62%
Wind
SSE 2.2 mph
Gust
4.8 mph
Wind Chill
34 °F

Hourly Forecast

Today
5 PM
36°F
Mostly clear
Today
6 PM
32°F
Mostly clear
Today
7 PM
29°F
Mostly clear
Today
8 PM
25°F
Mostly clear
Today
9 PM
22°F
Clear
Today
10 PM
20°F
Clear
Today
11 PM
19°F
Clear
Tomorrow
12 AM
18°F
Clear
Tomorrow
1 AM
17°F
Clear
Tomorrow
2 AM
16°F
Mostly clear
Tomorrow
3 AM
15°F
Mostly clear
Tomorrow
4 AM
15°F
Mostly clear

7 Day Forecast

Sunny

Thursday

37 °F

Plenty of sunshine, but cold


Mostly clear

Thursday Night

12 °F

Mainly clear


Partly sunny

Friday

43 °F

Partly sunny


Mostly clear

Friday Night

20 °F

Mainly clear


Mostly sunny

Saturday

45 °F

Sunshine and a few clouds


Partly cloudy

Saturday Night

19 °F

Partly cloudy


Sunny

Sunday

46 °F

Plenty of sunshine


Clear

Sunday Night

19 °F

Clear


Sunny

Monday

51 °F

Sunshine


Clear

Monday Night

22 °F

Clear


Sunrise and Sunset

Sunrise
7:01 AM
Sunset
4:36 PM

Based on AccuWeather data