Rain
Littleton
Historic south metro along the South Platte.
The outlook
Expect showers to continue through Thursday. Some storms could be strong on the plains late Thursday. Rain chances stick around Friday, especially south of I-70, with cooler temperatures lingering.
The days ahead
Overnight
into the morning
Clear
2026 is running 8.0° warmer than the archive average so far.
This heating season is running 22% milder than normal so far.
The record high for May 20 is 86°, set in 2020.
On May 20, Littleton normally reaches 65°.
Right now
Conditions
- Wind
- mph NNE
- Humidity
- Pressure
- UV index
- 4Moderate
- Visibility
- 6 mi
- Dew point
- 44°
Next hour
Minute-by-minute
Heavy rain ending in 18 min.
Sun & Moon
Light of day
sunrise
5:41 AM
sunset
8:11 PM
Daylight
14 hr 30 min
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
130 J/kg
Stable air
Freezing level
10,794 ft
Altitude of the 32°F line
Cloud layers
low 94% · mid 35% · high 0%
Soil temp
60°
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
20(season just getting underway)
Year to date
+8.0°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.
May 20, across the years
2017–2025Each bar is May 20 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 20, archive mean).Neutral dashes: avg low for the same date.
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