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 Details for Adams County Freeze Warning  +1 additional alert
 Thornton
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Freeze Warning FREEZE WARNING - Adams County  - Thornton
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METRIC | IMPERIAL
Updated: 20-Oct-2025 @ 8:45am   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Warmer 1.2°F than last hour.

49.1°F

Feels like:  44°F
24-hr diff: 6.7°FWarmer 6.7°F than yesterday at this time.
Cool
High Today
61.7°F
3:29 AM 		Low Today
44.4°F
6:13 AM
Yest High
79.1°F
4:17 PM 		Yest Low
29.8°F
7:23 AM
Sta* High
86.8°F
2023 		Sta* Low
27.1°F
2016
* This Station's Records Since 11/2006
Sunny, Dry Sunny, Dry

Wind from WNW Wind:  WNW
12.3
Gusting to:
 4.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
17.6 of 100
Overnight

Overnight: Mostly Clear
Mostly Clear
Monday

Monday: Sunny then Patchy Blowing Dust
Sunny then Patchy Blowing Dust
Monday
Night
Monday Night: Clear
Clear
Lo 45°F Hi 60°F Lo 32°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Decreased 3.1°F since last hour. 30.7°F
Last Hour: Decreased 3.1°F since last hour. -3.1°F
High 6:30 AM: 38.4°F
Low 1:32 AM: 24.5°F
Record High: 73.2°F on
3-Aug-2007
Record Low: -17.3°F on
16-Jan-2024
Wetbulb: 41.9°F
Rain Today
rain graph
Today: 0.00 in
Yesterday: 0.00 in
Last 7 Days: 0.00 in
Oct Rain: 0.52 in
Oct to Date
  Avg:10 		0.57 in
Oct to Date
  Diff from Avg:10 		Under 0.05 in for the month 0.05 in
Oct Avg: 0.91 in
Diff from Avg: Under 0.39 in for the month 0.39 in
Season:1 11.57 in
YTD
  Avg:11 		13.16 in
YTD
  Diff from Avg:11 		Under 1.59 in for the year 1.59 in
Last Rain
Time/Date: 		11-Oct-2025
at 3:17 PM
72 rain days in 2025
3 days in October
8 days since last rain
Current: WNW  12.3 mph
1Hr Average: 6.5 mph
Wind Run: 38.26 miles
Wind Gust
Current: 4.0 mph
Today: 29.0 mph 6:31 AM
Month: 31.1 mph 4-Oct
Year: 47.2 mph 3-Mar
Record Gust: 62.1 mph
17-Apr-2018
Sunlight:
10 h 59 m 19 s
of Sunlight Yesterday
10 h 56 m 50 s
of Sunlight Today Which is
2 min 29 sec shorter than
yesterday
10 h 54 m 22 s
of Sunlight Tomorrow
 (Noon) graph (Midnight)
 Legend

Waning Crescent
Waning Crescent, 28 days, 18 hours, 53 minutes in cycle
1%
Illuminated
Humidity Barometer
Current: Decreased 9% since last hour. 49%
Last Hour: Decreased 9% since last hour. 9%
High 6:11 AM: 65%
Low 3:27 AM: 26%
Record High: 100%
12-Feb-2007
Record Low: 0%
1-Jan-2008
Current: Rising 0.045 inHg/hr 30.043 inHg
Last Hour: Rising
High 8:28 AM: 30.043
Low 3:32 AM: 29.831
Record High: 31.086 inHg
30-Dec-2014
Record Low: 25.130 inHg
17-Dec-2006
Heating Degree Days Snow3 Wind Chill Air
Today: 5.4
Oct: 171.2
2025 to Date: 3643.3
Cooling Degree Days
2025 to Date: 829.1
Today: 0.00 in
Yesterday: 0.00 in
Oct Snow: Under 3.976 in for the month 0.00 in
Oct Avg: 3.98 in
Diff from Avg: -3.98 in
Season Total:2 0.00 in
Snow Depth: 0.00 in
0 snow days in October
0 snow days this season.2
First Snow of Season:
7-Jan-2025
Average 1st Snow:
27 of Oct
Current: 44.2°F
Low 6:23 AM: 40.9°F
Yesterday: 28.6°F
Record: -31.0°F
22-Dec-2022
Quality
Index6:
44

Good
Density:
1.25 kg/m3
Current UV Index Current Solar Energy9
0.6
Sunburn in
187 Minutes 		Highest:
8:39 AM
0.6
218 W/m2
100%
W/m2 ⇒ SI 		High Today:
8:43 AM
 218  W/m2
Record:
1461 W/m2
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Morning
YTD Avg Temp: 55.4°F
Sunrise: 7:15 am
Sunset: 6:13 pm
Moonrise: 6:27 am
Moonset: 5:34 pm
Full Moon: 06-Oct-2025
New Moon: 12:26 UTC
21-Oct-2025
Updated at Midnight
Current ET: 0.08 in
7-Days Rain: 0.00 in
7-Days ET: 0.64 in
7-Day: 0.642 in water in deficit of what evaporated in last 7 days. 0.642 in
October: 1.22 in water in deficit of what evaporated this month. 1.22 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:4.8 | 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 October for this station since 2006.   11 Historical average rain this season to day 20 of October for this station since 2006.
 NWS Weather Forecast  -   Outlook Overnight & Monday
Overnight

Overnight: Mostly Clear
Mostly Clear

Lo 45°F 		NWS forecast: Mostly clear, with a low around 45. North northwest wind around 13 mph, with gusts as high as 23 mph.
 Monday

Monday: Sunny then Patchy Blowing Dust
Sunny then Patchy Blowing Dust

Hi 60°F 		NWS forecast: Patchy blowing dust between 1pm and 4pm. Sunny. High near 60, with temperatures falling to around 56 in the afternoon. Northwest wind 15 to 30 mph, with gusts as high as 45 mph.
 NWS Short Term Weather Forecast
Monday
Night
Monday Night: Clear
Clear
Tuesday

Tuesday: Sunny
Sunny
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Wednesday

Wednesday: Sunny
Sunny
Wednesday
Night
Wednesday Night: Partly Cloudy
Partly Cloudy
Thursday

Thursday: Mostly Cloudy then Chance Rain Showers
Mostly Cloudy then Chance Rain Showers
Thursday
Night
Thursday Night: Chance Rain Showers
Chance Rain Showers
Lo 32°F Hi 67°F Lo 36°F Hi 67°F Lo 39°F Hi 61°F Lo 40°F
Click here for the complete forecast.
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