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52°F

Thornton, Colorado, USA

Updated: 25-May-2025 8:50am

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METRIC | IMPERIAL

Updated: 25-May-2025 @ 8:50am (0 sec ago)

Temperature

Current Conditions

Forecast / Storm Prediction

Currently Outside: 51.7°F 24-hr diff: -6.6°F Cool
High Today 51.7°F 8:48 AM	Low Today 49.6°F 5:10 AM
Yest High 66.2°F 3:27 PM	Yest Low 50.5°F 11:40 PM
Sta* High 89.7°F 2018	Sta* Low 36.2°F 2022
* This Station's Records Since 11/2006


	Overcast and gloomy, Dry
	Wind: NE 2.9 Gusting to: 2.0 mph
	Rain: 0.05 in
	Current CBI Fire Danger: -1.6 of 100

Today Showers And T-Storms	Tonight Showers And T-Storms	Memorial Day Showers And T-Storms Likely
Hi 58.0°F	Lo 48.0°F	Hi 58.0°F

Dew Point

Liquid Precipitation

Wind Speed

Sun/Moon

Current:	49.5°F
Last Hour:	-32.0°F
High 8:32 AM:	49.6°F
Low 5:10 AM:	48.2°F
Record High:	73.2°F 3-Aug-2007
Record Low:	-17.3°F 16-Jan-2024
Wetbulb:	50.6°F

Rain Today
Today:	0.05 in
Storm Rain:	0.14 in
Yesterday:	0.09 in
Last 7 Days:	0.10 in
May Rain:	1.94 in
May to Date Avg:¹⁰	2.70 in
May to Date Diff from Avg:¹⁰	0.76 in
May Avg:	2.98 in
Diff from Avg:	1.04 in
Season:¹	4.58 in
YTD Avg:¹¹	6.48 in
YTD Diff from Avg:¹¹	1.90 in
Last Rain Time/Date:	25-May-2025 at 3:02 AM
30 rain days in 2025
7 days in May 0 days since last rain

Current:	NE 2.9 mph
1Hr Average:	2.1 mph
Wind Run:	9.28 miles
Wind Gust
Current:	2.0 mph
Today:	11.5 mph 12:01 AM
Month:	40.0 mph 14-May
Year:	47.2 mph 3-Mar
Record Gust:	62.1 mph 17-Apr-2018

Sunlight:

14 h 42 m 11 s
of Sunlight Yesterday
14 h 43 m 39 s
of Sunlight Today Which is
1 min 28 sec longer than
yesterday
14 h 45 m 4 s
of Sunlight Tomorrow
(Noon)

(Midnight)
Legend

Waning Crescent

3%
Illuminated

Humidity

Barometer

Current:	92%
Last Hour:	2%
High 12:13 AM:	95%
Low 8:42 AM:	91%
Record High:	100% 12-Feb-2007
Record Low:	0% 1-Jan-2008

Current:	29.867 inHg
Last Hour:	Steady
High 8:33 AM:	29.874
Low 12:00 AM:	29.809
Record High:	31.09 inHg 30-Dec-2014
Record Low:	25.13 inHg 17-Dec-2006

Heating Degree Days

Snow³

Wind Chill

Air

Today:	5.1
May:	179.2
2025 to Date:	3311.2
Cooling Degree Days
2025 to Date:	18.7

Today:	0.00 in
Yesterday:	0.00 in
May Snow:	0.00 in
May Avg:	1.57 in
Diff from Avg:	-1.57 in
Season Total:²	36.90 in
Snow Depth:	0.00 in
0 snow days in May
20 snow days this season.²
First Snow of Season: 6-Nov-2024
Average 1st Snow: 27 of Oct

Current:	51.7°F
Low 3:43 AM:	48.5°F
Yesterday:	50.5°F
Record:	-31.0°F 22-Dec-2022

Quality
Index⁶:
29

Good

Density:
1.23 kg/m³

Current UV Index

Current Solar Energy⁹

0.0

Sunburn in

720 Minutes

Highest:
7:30 AM
0.5

74 W/m²
13%
W/m² ⇒ SI

High Today:
7:32 AM
97 W/m²
Record:
1461 W/m²

Almanac

Irrigation Index⁵

Station All Time Records

Cloud Level

Currently:	Morning
YTD Avg Temp:	42.2°F
Sunrise:	5:36 am
Sunset:	8:16 pm
Moonrise:	4:09 am
Moonset:	5:34 pm
Full Moon:	12-May-2025
New Moon:	03:03 UTC 26-May-2025

Updated at Midnight
Current ET:	0.02 in
7-Days Rain:	0.10 in
7-Days ET:	1.31 in
7-Day:	1.22 in
May:	2.66 in
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HIGHS:	LOWS:
102.9°F 25-Jun-2012	-14.6°F 2-Feb-2011
Daytime Records
100.6°F 12-Jul-2024	-8.1°F 22-Dec-2022
Nitetime Records
88.0°F 15-Aug-2012	-10.7°F 02-Feb-2011
ICN:5 \| S3C2:1 \| Ajax 3.xx ISS:Ok \| CON:4.7 \| RCP:99%

¹ Rain season: Jan 1st to Dec 31st. ² Snow season July 1st to June 30th. ³ Snow manually measured usually around 5AM and 5PM. ⁵ Estimated amount of water needed to replace the water used by plants and evaporation from the past week. (Negative numbers mean amount of water needed, positive numbers mean excess water is present). ⁶ Air Quality Index is provided by Colorado Department of Public Health & Environment. ⁹ Solar Index represents either an absolute scale of solar energy (W/m²) using the station’s recorded maximum or a percentage of computed theoretical solar maximum using the station’s location and time of day. These indices differ most when the sun is low on the horizon. The current scale is shown, and will toggle if it or the icon is clicked. ¹⁰ Historical average only to day 25 of just the month of May for this station since 2006. ¹¹ Historical average rain this season to day 25 of May for this station since 2006.

NWS Weather Forecast - Outlook Today & Tonight

Today

Showers And T-Storms

Hi 58.0°F

NWS forecast: Rain showers likely and patchy fog before noon, then showers and thunderstorms. Cloudy. High near 58, with temperatures falling to around 53 in the afternoon. East wind 6 to 12 mph, with gusts as high as 20 mph. Chance of precipitation is 90%. New rainfall amounts between a half and three quarters of an inch possible.

Tonight

Showers And T-Storms

Lo 48.0°F

NWS forecast: Showers and thunderstorms. Cloudy, with a low around 48. Northeast wind 5 to 12 mph, with gusts as high as 18 mph. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.

NWS Short Term Weather Forecast

Memorial Day Showers And T-Storms Likely	Monday Night Chance Showers And T-Storms then Mostly Cloudy	Tuesday Partly Sunny then Chance Showers And T-Storms	Tuesday Night Chance Showers And T-Storms then Mostly Cloudy	Wednesday Partly Sunny then Showers And T-Storms Likely	Wednesday Night Chance Showers And T-Storms then Mostly Cloudy	Thursday Partly Sunny then Chance Showers And T-Storms
Hi 58.0°F	Lo 47.0°F	Hi 73.0°F	Lo 50.0°F	Hi 69.0°F	Lo 49.0°F	Hi 69.0°F

Click here for the complete forecast.

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