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Heat Advisory HEAT ADVISORY - Adams County  - Thornton

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METRIC | IMPERIAL
Updated: 19-Jun-2025 @ 4:35pm   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 0.2°F than last hour.

95.5°F

Heat Index:  91.0°F
Feels like:  91°F
24-hr diff: 13.3°FWarmer 13.3°F than yesterday at this time.
Uncomfortably Hot
High Today
97.2°F
2:09 PM 		Low Today
58.4°F
6:09 AM
Yest High
82.8°F
4:59 PM 		Yest Low
47.0°F
5:44 AM
Sta* High
98.5°F
2016 		Sta* Low
45.8°F
2014
* This Station's Records Since 11/2006
Sunny, Dry Sunny, Dry

Wind from N Wind:  N
4.8
Gusting to:
 6.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: EXTREME Current CBI
Fire Danger:
149.5 of 100
Overnight

Overnight: Mostly Clear
Mostly Clear
Friday

Friday: Sunny
Sunny
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Lo 64°F Hi 100°F Lo 64°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Increased 1.9°F since last hour. 34.8°F
Last Hour: Increased 1.9°F since last hour. +1.9°F
High 10:07 AM: 52.6°F
Low 1:43 PM: 31.6°F
Record High: 73.2°F on
3-Aug-2007
Record Low: -17.3°F on
16-Jan-2024
Wetbulb: 64.4°F
Rain Today
rain graph
Today: 0.00 in
Yesterday: 0.01 in
Last 7 Days: 0.43 in
Jun Rain: 1.56 in
Jun to Date
  Avg:10 		1.16 in
Jun to Date
  Diff from Avg:10 		Over 0.4 in for the month 0.40 in
Jun Avg: 1.43 in
Diff from Avg: Over 0.13 in for the month 0.13 in
Season:1 7.26 in
YTD
  Avg:11 		7.92 in
YTD
  Diff from Avg:11 		Under 0.66 in for the year 0.66 in
Last Rain
Time/Date: 		18-Jun-2025
at 6:37 AM
43 rain days in 2025
7 days in June
1 day since last rain
Current: N  4.8 mph
1Hr Average: 5.2 mph
Wind Run: 47.67 miles
Wind Gust
Current: 6.0 mph
Today: 14.0 mph 3:35 PM
Month: 34.0 mph 11-Jun
Year: 47.2 mph 3-Mar
Record Gust: 62.1 mph
17-Apr-2018
Sunlight:
15 h 0 m 24 s
of Sunlight Yesterday
15 h 0 m 27 s
of Sunlight Today Which is 3 sec longer than
yesterday
15 h 0 m 27 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Waning Crescent
Waning Crescent, 24 days, 14 hours, 17 minutes in cycle
28%
Illuminated
Humidity Barometer
Current: Increased 1% since last hour. 12%
Last Hour: Increased 1% since last hour. 1%
High 12:34 AM: 66%
Low 1:43 PM: 11%
Record High: 100%
12-Feb-2007
Record Low: 0%
1-Jan-2008
Current: Falling 0.024 inHg/hr 29.385 inHg
Last Hour: Falling slowly
High 12:00 AM: 29.657
Low 4:33 PM: 29.384
Record High: 31.086 inHg
30-Dec-2014
Record Low: 25.130 inHg
17-Dec-2006
Cooling Degree Days Snow3 Heat Index Air
Today: 1.9
Jun: 74.9
2025 to Date: 95.6
Heating Degree Days
2025 to Date: 3398.8
Today: 0.00 in
Yesterday: 0.00 in
Jun Snow: No Change 0.00 in
Jun Avg: 0.00 in
Diff from Avg: 0.00 in
Season Total:2 36.90 in
Snow Depth: 0.00 in
0 snow days in June
20 snow days this season.2
First Snow of Season:
6-Nov-2024
Average 1st Snow:
27 of Oct
Current: 91.0°F
High 2:11pm: 92.8°F
Yesterday: 81.0°F
Record: 102.9°F
8-Jul-2021
Quality
Index6:
53

Moderate
Density:
1.12 kg/m3
Current UV Index Current Solar Energy9
4.1
Sunburn in
27 Minutes 		Highest:
1:01 PM
9.5
598 W/m2
81%
W/m2 ⇒ SI 		High Today:
1:37 PM
 940  W/m2
Record:
1461 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Afternoon
YTD Avg Temp: 45.6°F
Sunrise: 5:31 am
Sunset: 8:31 pm
Moonrise: 1:16 am
Moonset: 2:04 pm
Full Moon: 11-Jun-2025
New Moon: 10:32 UTC
25-Jun-2025
Updated at Midnight
Current ET: 0.43 in
7-Days Rain: 0.43 in
7-Days ET: 1.68 in
7-Day: 1.251 in water in deficit of what evaporated in last 7 days. 1.251 in
June: 2.24 in water in deficit of what evaporated this month. 2.24 in
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HIGHS: LOWS:
102.9°F
25-Jun-2012 		-14.6°F
2-Feb-2011
Daytime Records
  100.6°F°F
12-Jul-2024 		  -8.1°F°F
22-Dec-2022
Nitetime Records
  88.0°F°F
15-Aug-2012 		  -10.7°F°F
02-Feb-2011
ICN:0 | 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 20 of just the month of June for this station since 2006.   11 Historical average rain this season to day 20 of June for this station since 2006.
 NWS Weather Forecast  -   Outlook Overnight & Friday
Overnight

Overnight: Mostly Clear
Mostly Clear

Lo 64°F 		NWS forecast: Mostly clear. Low around 64, with temperatures rising to around 66 overnight. South southwest wind around 8 mph.
 Friday

Friday: Sunny
Sunny

Hi 100°F 		NWS forecast: Sunny. High near 100, with temperatures falling to around 98 in the afternoon. Southwest wind 9 to 16 mph, with gusts as high as 25 mph.
 NWS Short Term Weather Forecast
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Saturday

Saturday: Sunny
Sunny
Saturday
Night
Saturday Night: Mostly Clear
Mostly Clear
Sunday

Sunday: Sunny
Sunny
Sunday
Night
Sunday Night: Partly Cloudy
Partly Cloudy
Monday

Monday: Partly Sunny then Slight Chance Showers And Thunderstorms
Partly Sunny then Slight Chance Showers And T-Storms
Monday
Night
Monday Night: Chance Showers And Thunderstorms
Chance Showers And T-Storms
Lo 64°F Hi 97°F Lo 63°F Hi 94°F Lo 57°F Hi 76°F Lo 57°F
Click here for the complete forecast.
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