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Arvada, Colorado 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
NWS Forecast for Arvada CO
National Weather Service Forecast for: Arvada CO
Issued by: National Weather Service Denver-Boulder, CO
Updated: 10:09 pm MDT Aug 10, 2025
 
Overnight

Overnight: Partly cloudy, with a low around 55. Calm wind.
Partly Cloudy

Monday

Monday: Sunny, with a high near 82. Calm wind becoming northeast 5 to 9 mph in the morning. Winds could gust as high as 16 mph.
Sunny

Monday
Night
Monday Night: Mostly clear, with a low around 57. East northeast wind around 6 mph becoming calm  in the evening.
Mostly Clear

Tuesday

Tuesday: Sunny, with a high near 87. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Sunny

Tuesday
Night
Tuesday Night: Mostly clear, with a low around 60. Southeast wind 5 to 10 mph becoming west southwest after midnight. Winds could gust as high as 21 mph.
Mostly Clear

Wednesday

Wednesday: Sunny, with a high near 94.
Sunny

Wednesday
Night
Wednesday Night: Partly cloudy, with a low around 63.
Partly Cloudy

Thursday

Thursday: A slight chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 94.
Mostly Sunny
then Slight
Chance
T-storms
Thursday
Night
Thursday Night: Partly cloudy, with a low around 63.
Partly Cloudy

Lo 55 °F Hi 82 °F Lo 57 °F Hi 87 °F Lo 60 °F Hi 94 °F Lo 63 °F Hi 94 °F Lo 63 °F

Hazardous Weather Outlook
Air Quality Alert
 

Overnight
 
Partly cloudy, with a low around 55. Calm wind.
Monday
 
Sunny, with a high near 82. Calm wind becoming northeast 5 to 9 mph in the morning. Winds could gust as high as 16 mph.
Monday Night
 
Mostly clear, with a low around 57. East northeast wind around 6 mph becoming calm in the evening.
Tuesday
 
Sunny, with a high near 87. Light and variable wind becoming southeast 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph.
Tuesday Night
 
Mostly clear, with a low around 60. Southeast wind 5 to 10 mph becoming west southwest after midnight. Winds could gust as high as 21 mph.
Wednesday
 
Sunny, with a high near 94.
Wednesday Night
 
Partly cloudy, with a low around 63.
Thursday
 
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 94.
Thursday Night
 
Partly cloudy, with a low around 63.
Friday
 
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 94.
Friday Night
 
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 61.
Saturday
 
A chance of showers and thunderstorms. Partly sunny, with a high near 89.
Saturday Night
 
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 60.
Sunday
 
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 90.

 

Forecast from NOAA-NWS for Arvada CO.

Weather Forecast Discussion
188
FXUS65 KBOU 110515
AFDBOU

Area Forecast Discussion
National Weather Service Denver/Boulder CO
1115 PM MDT Sun Aug 10 2025

.KEY MESSAGES...

- Elevated fire conditions will continue over the higher terrain
  through Wednesday.

- Drier and warmer weather develops Monday and continues through
  Wednesday.

&&

.DISCUSSION /Through Sunday/...
Issued at 129 PM MDT Sun Aug 10 2025

Over the past couple hours, northeast winds have surged westward,
into the northern foothills. It`s been a little slow to make it
into the southern foothills. Outflow from convection to the
southwest of Denver will likely keep the best moisture out of the
southern foothills. A Severe Thunderstorm Watch has been issued
for much of eastern Colorado and most of the urban corridor
(except Jefferson County) where dew points are in the 50s (or
better), MLCAPE is 1000- 2000 J/kg and 0-6km Bulk Shear is 35-40
knots. These ingredients are expected to produce strong/severe
storms, including some supercell thunderstorms. Large hail to 2.5
inch in diameter and 70 mph will be the main threats. A tornado or
two is also possible. Isolated flash flooding will be possible
where multiple storms train over the same area. The Severe
Thunderstorm Watch runs until 8PM, afterwards storms should be
weaker. However, some models show a second round of weaker storms
mid to late evening, so will continue with decent (30- 60%) PoPs
for this.

For Monday, the upper level trough axis will be just east of the
area with a dry subsident northwest flow aloft. In addition to the
drier air in place, soundings show a strong mid level inversion,
around 450mb. This is expected to keep showers and storms from
developing on Monday. If this system slows a little, the southern
part of the forecast area could pick up a few showers and storms,
so will have low PoPs in these areas.

The upper level high begins to build over the area Tuesday and
will be centered over the Central Rockies Wednesday and at least
into early Thursday. Warmer air returns to the area under this
pattern with highs expected to reach the 90s Wednesday and
Thursday across northeast Colorado. Dry conditions are expected
for Tuesday and Wednesday with dry air over the area and the
subtropical moisture cut off from the area. On Thursday, the ridge
may drift eastward enough for the subtropical moisture to lift
northward into the area.

For Friday and next weekend, the upper level high will be over
the south central and southeast part of the country. This will
result in a weak south to southwest flow across the Central and
Southern Rockies. Subtropical (monsoon) moisture travels northward
into the area. Expected at least scattered afternoon/evening
thunderstorms in the mountains each day (Friday-Sunday) under this
pattern and possibly onto the plains. Temperatures take a step
back and will be closer to normal, which is upper 80s to lower 90s
over northeast Colorado.

&&

.AVIATION /06Z TAFS through 06Z Tuesday/...
Issued at 1109 PM MDT Sun Aug 10 2025

Stratus between 3000 and 5000 ft is lingering over BJC but mid
clouds are blocking satellite data from seeing how far east it
is. Will keep it in at BJC for another hour so but keep it out
of DIA and APA. Decent rainfall this aftn at DIA could lead to
a 10% chance of some fog late tonight at the airport. Confidence
is very but something to keep an eye on.

Winds will be light overnight with variable directions. Winds on
Mon will become easterly by 16z and then southeast in the aftn.

&&

.BOU WATCHES/WARNINGS/ADVISORIES...
None.

&&

$$

DISCUSSION...Meier
AVIATION...RPK
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Forecast Discussion from: NOAA-NWS Script developed by: El Dorado Weather






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