Skip to content

Mon Update: The Front Range Forecast: More warmth, little rain

In Brief:

Near record heat and little chance of rain.

Monday Update:

The great western ridge moves in again bringing back late season 80's for highs.  The normal high temperature is only 65F now - this is really warm. Records for these dates are still a bit warmer, in the mid to upper 80's. We see a hint of cool weather and showers about 9 days from now, but that can certainly change.

Stay tuned!

figure2_10162023
Figure 2 update: the 10 day graphical forecast for Longmont from weatherunderground.com

End Monday update.

 

Special Note:  

This Saturday morning, we'll have a partial eclipse of the sun peaking around 10:30am.  This eclipse will, at no moment, be safe to look at in ANY WAY except by certified eclipse glasses (undamaged and new) or a telescope with appropriate front end solar filtering.

I will be opening the Cherrywood Observatory for people to come look.  Please do not bring any viewing aids (like binoculars) or welder goggles.  To find my address and details, search for the Cherrywood Observatory eclipse on Nextdoor.  I hope to see you there.

Thur Update:

The low and storm are pulling away.  I received about 0.16 in of water yesterday and a trace or more today. The first freezing temperatures are headed in overnight tonight.  There is a freeze watch for I-25 cities and the eastern plains.  Cover those plants or bring them inside!

figure1u_10122023
Figure 1 update: freeze watch map from the NWS.

End Thur update.

The Forecast Discussion:

The ridge holds on for a couple more days. We'll see above normal temperatures into Wednesday morning (Figure 1). Afternoons get a bit breezier each day.

figure1_10082023
Figure 1: the 10 day graphical forecast for Longmont from weatherunderground.com

The Longer Range Forecast:

A healthy cut-off low rolls over Colorado Wednesday afternoon and Thursday. (Figure 2). At present, northern Colorado will see the precipitation, rain on the low lands, snow in the northern mountains (Figure 3). Rainfall amounts do look pretty light, though (Figure 4).

figure2_10082023
Figure 2: the 500mb upper air forecast map for Thursday noon from the GFS and tropicaltidbits.com
figure3_10082023
Figure 3: the surface 6 hour precipitation forecast map for Thursday noon from the GFS and tropicaltidbits.com
figure4_10082023
Figure 4: the 5 day precipitation total from the GFS and 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.
Read more


Comments


Current Weather

Clear

Clear

54°F

UV Index
0 Low
Pressure
29.89 Steady
Visibility
8 miles
Dewpoint
35 °F
Humidity
47%
Wind
WSW 3.3 mph
Gust
6.5 mph
Wind Chill
54 °F

Hourly Forecast

Today
4 AM
52°F
Mostly clear
Today
5 AM
50°F
Mostly clear
Today
6 AM
48°F
Mostly sunny
Today
7 AM
51°F
Mostly sunny
Today
8 AM
57°F
Mostly sunny
Today
9 AM
62°F
Mostly sunny
Today
10 AM
66°F
Mostly sunny
Today
11 AM
70°F
Mostly sunny
Today
12 PM
72°F
Mostly sunny
Today
1 PM
75°F
Mostly sunny
Today
2 PM
77°F
Mostly sunny
Today
3 PM
79°F
Mostly sunny

7 Day Forecast

Sunny

Friday

85 °F

Sunny and very warm


Partly cloudy

Friday Night

48 °F

Partly cloudy


Partly sunny w/ t-storms

Saturday

79 °F

Mostly sunny and not as warm, becoming breezy with a thunderstorm in spots this afternoon


Partly cloudy w/ t-storms

Saturday Night

49 °F

A thunderstorm in spots early this evening; otherwise, partly cloudy


Mostly sunny

Sunday

83 °F

Sunshine and patchy clouds; breezy in the afternoon


Mostly clear

Sunday Night

51 °F

Mainly clear


Intermittent clouds

Monday

70 °F

Cooler but pleasant with times of sun and clouds


Thunderstorms

Monday Night

46 °F

Cloudy; evening thundershowers followed by a couple of showers late


Mostly cloudy

Tuesday

60 °F

Mostly cloudy and cooler


Intermittent clouds

Tuesday Night

37 °F

Partly cloudy


Sunrise and Sunset

Sunrise
5:42 AM
Sunset
8:12 PM

Based on AccuWeather data