Rain
Denver5,246 ft
The Mile High City, where the plains meet the Front Range.
The outlook
A Freeze Watch is in effect until 8 AM Tuesday. Expect rain and colder temperatures today, with a chance of wet snowflakes in the Denver area. Snow is likely in the mountains and foothills. Tuesday will be cold with snow, followed by warmer rain on Wednesday.
The days ahead
Rest of today
through midnight
Snow
Tomorrow
Tue
Snow · milder
Wed
Rain · much milder
Rest of the week
Thu–Sun
Temperatures warming, rain Thu
Today is running 20° below the seasonal average for this date.
2026 is running 9.5° warmer than the archive average so far.
The record low for May 18 is 33°, set in 2017.
This heating season is running 25% milder than normal so far.
Right now
Conditions
- Wind
- mph WNW
- Humidity
- Pressure
- UV index
- 0Low
- Visibility
- 6 mi
- Dew point
- 41°
Next hour
Minute-by-minute
Rain ending in 2 min.
Next 48 hours
Hourly forecast
Mon, May 18 → Tue, May 19Mountain · midnight starts a new day
7-day outlook
The week ahead
- Today46°38°
Snow · 92% precip
- Tue52°36°
Snow · 97% precip
- Wed67°45°
Rain · 97% precip
- Thu70°50°
Rain · 73% precip
- Fri71°50°
Rain · 72% precip
- Sat77°51°
Rain · 60% precip
- Sun84°57°
Rain · 42% precip
Sun & Moon
Light of day
sunrise
5:42 AM
sunset
8:10 PM
Daylight
14 hr 28 min
+1 min 45 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
10 J/kg
Stable air
Freezing level
9,416 ft
Altitude of the 32°F line
Cloud layers
low 100% · mid 100% · high 84%
Soil temp
49°
Ground surface
Vertical profile
Temperature and wind from the surface up through the upper atmosphere.
Climate
How today sits against the record
NOAA KDEN station, 2016–2025
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
4,141(-25% vs normal)
Cooling degree-days· Since May 1
30(season just getting underway)
Year to date
+9.5°warmer than the archive average
The year in temperature
2016–2025 avgAverage temperature each month, with heating and cooling degree-days, averaged across these years. This month is outlined.
May 18, across the years
2017–2025Each bar is May 18 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 (May 18, archive mean).Neutral dashes: avg low for the same date.
A year of temperatures, hour by hour
KDEN hourlyHours per year in each temperature band, from NOAA station observations for Denver.
UniColorado installs heat pumps, furnaces, AC, and electrical across Denver and the Denver metro.