Heat Advisory HEAT ADVISORY - Adams County  - Thornton

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METRIC | IMPERIAL
Updated: 03-Aug-2026 @ 2:15pm   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 1.4°F than last hour.

98.1°F

Heat Index:  93.8°F
Feels like:  94°F
24-hr diff: -3.1°FColder 3.1°F than yesterday at this time.
Uncomfortably Hot
High Today
103.1°F
1:31 PM
Low Today
66.8°F
5:48 AM
Yest High
102.0°F
3:20 PM
Yest Low
64.4°F
5:57 AM
Sta* High
97.2°F
2008
Sta* Low
53.8°F
2014
* This Station's Records Since 11/2006
Station Record High
Cloudy, Dry Cloudy, Dry

Wind from SSW Wind:  SSW
6.4

Gusting to:
5.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: EXTREME Current CBI
Fire Danger:
137.4 of 100
This
Afternoon
This Afternoon: Patchy Smoke
Patchy Smoke
Tonight

Tonight: Patchy Smoke
Patchy Smoke
Tuesday

Tuesday: Patchy Smoke
Patchy Smoke
Hi 100°F Lo 61°F Hi 79°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Decreased 4.1°F since last hour. 40.8°F
Last Hour: Decreased 4.1°F since last hour. -4.1°F
High 8:16 AM: 52.6°F
Low 1:06 PM: 37.1°F
Record High: 73.2°F on
3-Aug-2007
Record Low: -17.3°F on
16-Jan-2024
Wetbulb: 66.9°F
Rain Today
rain graph

Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.11 in
Aug Rain: 0.00 in
Aug to Date
  Avg:10
0.14 in
Aug to Date
  Diff from Avg:10
Under 0.14 in for the month 0.14 in
Aug Avg: 1.06 in
Diff from Avg: Under 1.06 in for the month 1.06 in
Season:1 5.49 in
YTD
  Avg:11
9.97 in
YTD
  Diff from Avg:11
Under 4.48 in for the year 4.48 in
Last Rain
Time/Date:
30-Jul-2026
at 4:15 PM
41 rain days in 2026
0 days in August
3 days since last rain
Current: SSW  6.4 mph
1Hr Average: 3.7 mph
Wind Run: 44.05 miles
Wind Gust
Current: 5.0 mph
Today: 13.8 mph 12:00 AM
Month: 22.0 mph 2-Aug
Year: 43.0 mph 25-Feb
Record Gust: 62.1 mph
17-Apr-2018
Sunlight:
14 h 12 m 46 s
of Sunlight Yesterday
14 h 10 m 44 s
of Sunlight Today
Which is
2 min 2 sec shorter than
yesterday
14 h 8 m 41 s
of Sunlight Tomorrow
(Noon) graph (Midnight)
Legend

Waning Gibbous
Waning Gibbous, 20 days, 10 hours, 33 minutes in cycle
73%
Illuminated
Humidity Barometer
Current: Decreased 2% since last hour. 14%
Last Hour: Decreased 2% since last hour. 2%
High 8:10 AM: 50%
Low 1:33 PM: 11%
Record High: 100%
12-Feb-2007
Record Low: 0%
1-Jan-2008
Current: Falling 0.008  inHg/hr 29.209 inHg
Last Hour: Steady
High 12:01 AM: 29.292
Low 2:00 PM: 29.205
Record High: 31.086 inHg
30-Dec-2014
Record Low: 25.130 inHg
17-Dec-2006
Cooling Degree Days Snow3 Heat Index Air
Today: 8.1
Aug: 41.6
2026 to Date: 713.9
Heating Degree Days
2026 to Date: 2415.6
Today: 0.00 in
Yesterday: 0.00 in
Aug Snow: No Change 0.00 in
Aug Avg: 0.00 in
Diff from Avg: 0.00 in
Season Total:2 0.00 in
Snow Depth: 0.00 in
0 snow days in August
0 snow days this season.2
First Snow of Season:
8-Jan-2026
Average 1st Snow:
29 of Oct
Current: 93.8°F
High 1:37pm: 99.0°F
Yesterday: 97.2°F
Record: 103.5°F
26-Jul-2026
Quality
Index6:

97


Moderate
Density:
1.11 kg/m3
Current UV Index Current Solar Energy9
1.8
Sunburn in
62 Minutes
Highest:
1:31 PM
6.6
190 W/m2
22%
W/m2 SI
High Today:
1:22 PM
895  W/m2
Record:
1461 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Afternoon
YTD Avg Temp: 56.8°F
Sunrise: 6:00 am
Sunset: 8:11 pm
Moonrise: 10:12 pm
Moonset: 11:08 am
Full Moon: 29-Jul-2026
New Moon: 17:37 UTC
12-Aug-2026
Updated at Midnight
Current ET: 0.34 in
7-Days Rain: 0.11 in
7-Days ET: 1.54 in
7-Day:  1.433 in water in deficit of what evaporated in last 7 days. 1.433 in
August:  0.64 in water in deficit of what evaporated this month. 0.64 in
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HIGHS: LOWS:
104.4°F
25-Jul-2026
-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:19 | S3C2:1 | Ajax 3.xx
ISS:Ok | CON:4.7 | RCP:91%
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 3 of just the month of August for this station since 2006.   11 Historical average rain this season to day 3 of August for this station since 2006.
 NWS Weather Forecast  -   Outlook This Afternoon & Tonight
This
Afternoon
This Afternoon: Patchy Smoke
Patchy Smoke

Hi 100°F
NWS forecast: Patchy smoke and a slight chance of rain showers between 2pm and 3pm, then patchy smoke and a slight chance of showers and thunderstorms. Partly sunny. High near 100, with temperatures falling to around 93 in the afternoon. North northwest wind 6 to 10 mph, with gusts as high as 16 mph. Chance of precipitation is 20%.
Tonight

Tonight: Patchy Smoke
Patchy Smoke

Lo 61°F
NWS forecast: Patchy smoke and a slight chance of showers and thunderstorms. Mostly cloudy. Low around 61, with temperatures rising to around 63 overnight. North northeast wind 12 to 15 mph, with gusts as high as 24 mph. Chance of precipitation is 20%.
 NWS Short Term Weather Forecast
Tuesday

Tuesday: Patchy Smoke
Patchy Smoke
Tuesday
Night
Tuesday Night: Patchy Smoke
Patchy Smoke
Wednesday

Wednesday: Patchy Smoke then Sunny
Patchy Smoke then Sunny
Wednesday
Night
Wednesday Night: Mostly Clear
Mostly Clear
Thursday

Thursday: Sunny
Sunny
Thursday
Night
Thursday Night: Mostly Clear
Mostly Clear
Friday

Friday: Sunny
Sunny
Hi 79°F Lo 57°F Hi 86°F Lo 59°F Hi 93°F Lo 63°F Hi 97°F
Click here for the complete forecast.
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