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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

Mostly sunny

Mostly sunny

72°F

UV Index
5 Moderate
Pressure
29.88 Falling
Visibility
6 miles
Dewpoint
48 °F
Humidity
42%
Wind
W 3.6 mph
Gust
9.4 mph
Wind Chill
73 °F

Hourly Forecast

Today
11 AM
78°F
Partly sunny
Today
12 PM
80°F
Partly sunny
Today
1 PM
83°F
Partly sunny
Today
2 PM
85°F
Partly sunny w/ t-storms
Today
3 PM
87°F
Partly sunny
Today
4 PM
89°F
Partly sunny
Today
5 PM
88°F
Partly sunny
Today
6 PM
86°F
Partly sunny
Today
7 PM
84°F
Partly sunny
Today
8 PM
81°F
Mostly sunny
Today
9 PM
78°F
Mostly clear
Today
10 PM
73°F
Mostly clear

7 Day Forecast

Partly sunny w/ t-storms

Tuesday

89 °F

A blend of sun and clouds; a shower in spots this morning followed by a thunderstorm in spots this afternoon


Mostly clear

Tuesday Night

55 °F

Mainly clear


Partly sunny

Wednesday

93 °F

Partly sunny; breezy in the afternoon


Mostly clear

Wednesday Night

54 °F

Mainly clear


Mostly sunny

Thursday

85 °F

Mostly sunny with a thundershower on the prowl in the afternoon


Intermittent clouds

Thursday Night

50 °F

Partly cloudy


Mostly sunny

Friday

84 °F

Mostly sunny and delightful


Mostly clear

Friday Night

51 °F

Clear to partly cloudy


Mostly sunny

Saturday

92 °F

Sunny to partly cloudy and warmer


Mostly clear

Saturday Night

55 °F

Mainly clear and breezy


Sunrise and Sunset

Sunrise
5:36 AM
Sunset
8:33 PM

Based on AccuWeather data