Northglenn, Colorado 7 Day Weather Forecast
Wx Forecast - Wx Discussion - Wx Aviation
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NWS Forecast for Northglenn CO
National Weather Service Forecast for:
Northglenn CO
Issued by: National Weather Service Denver-Boulder, CO |
Updated: 4:01 am MDT Jul 19, 2025 |
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Today
 Mostly Sunny then Chance T-storms
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Tonight
 Slight Chance T-storms then Mostly Clear
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Sunday
 Sunny then Slight Chance T-storms
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Sunday Night
 Partly Cloudy
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Monday
 Mostly Sunny then Slight Chance T-storms
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Monday Night
 Partly Cloudy
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Tuesday
 Mostly Sunny then Chance T-storms
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Tuesday Night
 Chance T-storms then Partly Cloudy
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Wednesday
 Mostly Sunny then Chance T-storms
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Hi 94 °F |
Lo 65 °F |
Hi 93 °F |
Lo 65 °F |
Hi 93 °F |
Lo 65 °F |
Hi 92 °F |
Lo 65 °F |
Hi 88 °F |
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Hazardous Weather Outlook
Today
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A 40 percent chance of showers and thunderstorms, mainly after 1pm. Partly sunny, with a high near 94. Light and variable wind becoming southwest 5 to 9 mph in the afternoon. Winds could gust as high as 15 mph. |
Tonight
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A slight chance of showers and thunderstorms before 9pm, then a slight chance of showers between 9pm and midnight. Partly cloudy, with a low around 65. East southeast wind 5 to 8 mph becoming west southwest after midnight. Winds could gust as high as 18 mph. Chance of precipitation is 20%. |
Sunday
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A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 93. West northwest wind 5 to 8 mph becoming east southeast in the morning. Winds could gust as high as 17 mph. |
Sunday Night
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Partly cloudy, with a low around 65. South southwest wind 5 to 8 mph, with gusts as high as 17 mph. |
Monday
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A 20 percent chance of showers and thunderstorms after noon. Partly sunny, with a high near 93. Light and variable wind becoming west northwest 5 to 10 mph in the afternoon. Winds could gust as high as 21 mph. |
Monday Night
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Partly cloudy, with a low around 65. |
Tuesday
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A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92. |
Tuesday Night
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A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 65. |
Wednesday
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A chance of showers and thunderstorms after noon. Partly sunny, with a high near 88. |
Wednesday Night
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A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 64. |
Thursday
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A chance of showers and thunderstorms. Mostly sunny, with a high near 89. |
Thursday Night
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A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. |
Friday
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A slight chance of showers and thunderstorms. Mostly sunny, with a high near 91. |
Forecast from NOAA-NWS
for Northglenn CO.
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Weather Forecast Discussion
989
FXUS65 KBOU 191146
AFDBOU
Area Forecast Discussion
National Weather Service Denver/Boulder CO
546 AM MDT Sat Jul 19 2025
.KEY MESSAGES...
- Active pattern continues into the weekend, with scattered
afternoon showers and storms each day, and a few severe storms
possible Saturday afternoon/evening.
- Higher chances for rain across the Front Range mountains and
foothills.
- Warmer and drier trend for early next week.
- 90s continue for the lower elevations through the week.
&&
.DISCUSSION /Through Friday/...
Issued at 224 PM MDT Fri Jul 18 2025
Afternoon convection is currently underway across the higher
elevations. Scattered high-based showers and storms will be
possible through the evening, with gusty outflows to 40 mph
possible across the foothills and plains, and slow moving storms
may bring some localized heavy rainfall. Greater instability is
expected for the northeastern corner of the state where slightly
higher MLCAPE and modest shear would allow an isolated severe
threat for large hail and severe gusts, but Colorado is just on
the fringes of the greatest instability/moisture/shear line,
keeping the threat limited. Cloud cover will help keep temperatures
slightly above normal overnight.
Southwest flow aloft will be in place Saturday, with increasing
moisture expected across the forecast area. PWAT values ranging from
110-150% of normal are expected as an upper-level high over the
southeast helps pull Gulf moisture into the region. While there are
some slight discrepancies between models on how far west the
moisture will make it, dewpoints in the mid 60s are expected on
the east side of a dryline, MLCAPE between 2000-2400 J/kg, and 0-6
km bulk shear between 45-50 kts across the northern corner will
support supercell development by the afternoon. The SPC has put us
in a Slight Risk for severe weather (large hail and damaging
winds) from Logan County eastward, with a Marginal west to I-25,
which seems reasonable at this time. Depending on how far west the
moisture makes it could lead to a few adjustments with the severe
risk.
The rest of the long term forecast period looks to remain fairly active,
with afternoon mountain showers and storms possible each day,
with some spilling onto the plains. Temperatures will remain in
the 90s across the plains through the week as upper-level ridging
over the central US amplifies. Light winds are expected under the
ridge and decreasing moisture to start the week will slowly
increase by mid-week as monsoonal moisture wraps around the
persistent high.
&&
.AVIATION /12Z TAFS through 12Z Sunday/...
Issued at 544 AM MDT Sat Jul 19 2025
VFR through tonight. Scattered thunderstorms are expected
20z-02z, with the greatest threat at KDEN 22z-24z. The main threat
is a couple of wind shifts with gusts to 30 knots. Localized IFR
in heavy rain is also possible.
&&
.BOU WATCHES/WARNINGS/ADVISORIES...
None.
&&
$$
DISCUSSION...Bonner
AVIATION...Gimmestad
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