Clear
Littleton5,358 ft
Historic south metro along the South Platte.
The outlook
A Red Flag Warning is in effect for the mountains and valleys until 8 PM tonight, with gusty winds and dry conditions creating a fire risk. Expect it to be very warm today, with temperatures reaching the mid 90s. A significant cool down and overcast skies arrive Thursday.
The days ahead
Rest of today
through midnight
Overcast
Tomorrow
Thu
Overcast · colder
Fri
Overcast · sharply colder
Rest of the week
Sat–Tue
Temperatures cooling, drizzle Mon
The record high for June 17 is 98°, set in 2021.
Today is running 14° above the seasonal average for this date.
2026 is running 7.0° warmer than the archive average so far.
This heating season is running 22% milder than normal so far.
Right now
Conditions
- Wind
- mph NNW
- Humidity
- Pressure
Next 48 hours
Hourly forecast
Wed, Jun 17 → Fri, Jun 19Mountain · midnight starts a new day
7-day outlook
The week ahead
- Today98°69°
Overcast
- Thu92°56°
Overcast
- Fri86°63°
Overcast
- Sat95°66°
Overcast · 22% precip
- Sun91°65°
Drizzle · 36% precip
- Mon65°60°
Drizzle · 62% precip
- Tue86°58°
Drizzle · 36% precip
Sun & Moon
Light of day
sunrise
5:32 AM
sunset
8:29 PM
Daylight
14 hr 58 min
+0 min 14 sec vs yesterday
Moon
Waxing Crescent
Storm tracker
Live radar
Radar by RainViewer · 7-day precipitation forecast by Open-Meteo · basemap OpenFreeMap. Radar covers the past two hours plus a 30-minute nowcast; the 7-day layer is a precipitation forecast.
AdvancedAtmospheric detail & vertical profile
Atmospheric readings
Instability
0 J/kg
Stable air
Freezing level
16,798 ft
Altitude of the 32°F line
Cloud layers
low 0% · mid 0% · high 0%
Soil temp
112°
Ground surface
Vertical profile
Temperature and wind from the surface up through the upper atmosphere.
Climate
How today sits against the record
Open-Meteo archive, 2016–2026
This season's pace
A running total of heating and cooling demand in degree-days, measured against the multi-year average. It is a sum of degrees, not a count of days.
Heating degree-days· Since Oct 1
4,264(-22% vs normal)
Cooling degree-days· Since May 1
112(+42% vs normal)
Year to date
+7.0°warmer than the archive average
The year in temperature
2016–2026 avgAverage temperature each month, with heating and cooling degree-days, averaged across these years. This month is outlined.
June 17, across the years
2017–2025Each bar is June 17 only: observed low at the bottom, high at the top. Accent fill is 2026. Dashed lines are the archive’s typical high/low for that date.
Legend
- Frosted bars = other years
- Solid accent = 2026
- Accent dashes: avg high (June 17, archive mean).Neutral dashes: avg low for the same date.
UniColorado installs heat pumps, furnaces, AC, and electrical across Littleton and the Denver metro.