Freeze Warning FREEZE WARNING - Adams County  - Thornton

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METRIC | IMPERIAL
Updated: 21-Oct-2025 @ 12:05am   (0 sec ago)
Temperature Current Conditions Forecast / Storm Prediction
Currently Outside: Colder 1.6°F than last hour.

42.7°F

24-hr diff: -7.3°FColder 7.3°F than yesterday at this time.
Cold
High Today
42.8°F
12:03 AM
Low Today
42.6°F
12:00 AM
Yest High
61.7°F
3:29 AM
Yest Low
42.0°F
11:46 PM
Sta* High
82.1°F
2023
Sta* Low
26.0°F
2019
* This Station's Records Since 11/2006
Night time, Dry, Clear skies Night time, Dry, Clear skies

Wind from S Wind:  S
3.0

Gusting to:
5.0 mph
Current Rain Rain:
0.00 in
Chandler Burning Index: LOW Current CBI
Fire Danger:
27.8 of 100
Tonight

Tonight: Clear
Clear
Tuesday

Tuesday: Sunny
Sunny
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Lo 32°F Hi 67°F Lo 36°F
SPC Activity Map
Dew Point Liquid Precipitation Wind Speed Sun/Moon
Current: Decreased 0.9°F since last hour. 20.6°F
Last Hour: Decreased 0.9°F since last hour. -0.9°F
High 12:00 AM: 21.2°F
Low 12:00 AM: 20.5°F
Record High: 73.2°F on
3-Aug-2007
Record Low: -17.3°F on
16-Jan-2024
Wetbulb: 35.5°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
0.64 in
Oct to Date
  Diff from Avg:10
Under 0.12 in for the month 0.12 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
13.23 in
YTD
  Diff from Avg:11
Under 1.66 in for the year 1.66 in
Last Rain
Time/Date:
11-Oct-2025
at 3:17 PM
72 rain days in 2025
3 days in October
9 days since last rain
Current: S  3.0 mph
1Hr Average: 3.0 mph
Wind Run: 0.34 miles
Wind Gust
Current: 5.0 mph
Today: 8.1 mph 12:00 AM
Month: 34.0 mph 20-Oct
Year: 47.2 mph 3-Mar
Record Gust: 62.1 mph
17-Apr-2018
Sunlight:
10 h 56 m 50 s
of Sunlight Yesterday
10 h 54 m 22 s
of Sunlight Today
Which is
2 min 28 sec shorter than
yesterday
10 h 51 m 54 s
of Sunlight Tomorrow
(Noon) graph (Midnight)
Legend

New Moon
New Moon, 29 days, 10 hours, 15 minutes in cycle
0%
Illuminated
Humidity Barometer
Current: Increased 1% since last hour. 41%
Last Hour: Increased 1% since last hour. 1%
High 12:00 AM: 42%
Low 12:00 AM: 41%
Record High: 100%
12-Feb-2007
Record Low: 0%
1-Jan-2008
Current: Rising 0.011  inHg/hr 30.337 inHg
Last Hour: Steady
High 12:01 AM: 30.337
Low 12:00 AM: 30.336
Record High: 31.086 inHg
30-Dec-2014
Record Low: 25.130 inHg
17-Dec-2006
Heating Degree Days Snow3 Wind Chill Air
Today:
Oct: 178.5
2025 to Date: 3650.9
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: 41.4°F
Low 12:01 AM: 39.0°F
Yesterday: 40.0°F
Record: -31.0°F
22-Dec-2022
Quality
Index6:

N/A


No Data
Density:
1.28 kg/m3
UV Summary/Forecast Solar Summary
High Yest:   3.9 @ 12:30 PM
Oct-21

4.0
Oct-22

4.1
Oct-23

4.0
High Yest:   631.0 @ 12:18 PM
Sun Hours Today:
00:00
   This Month: 124:50 Hrs
Rise: 7:16 am  Set: 6:12 pm
Almanac Irrigation Index5 Station All Time Records Cloud Level
Currently: Night
YTD Avg Temp: 55.4°F
Sunrise: 7:16 am
Sunset: 6:12 pm
Moonrise: 7:28 am
Moonset: 5:56 pm
Full Moon: 06-Oct-2025
New Moon: 12:26 UTC
21-Oct-2025
Updated at Midnight
Current ET: 0.04 in
7-Days Rain: 0.00 in
7-Days ET: 0.73 in
7-Day:  0.732 in water in deficit of what evaporated in last 7 days. 0.732 in
October:  1.35 in water in deficit of what evaporated this month. 1.35 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:1 | S3C2:1 | Ajax 3.xx
ISS:Ok | CON:4.8 | RCP:100%
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.   10 Historical average only to day 21 of just the month of October for this station since 2006.   11 Historical average rain this season to day 21 of October for this station since 2006.
 NWS Weather Forecast  -   Outlook Tonight & Tuesday
Tonight

Tonight: Clear
Clear

Lo 32°F
NWS forecast: Clear. Low around 32, with temperatures rising to around 34 overnight. Southwest wind around 7 mph.
Tuesday

Tuesday: Sunny
Sunny

Hi 67°F
NWS forecast: Sunny. High near 67, with temperatures falling to around 65 in the afternoon. Southeast wind around 6 mph.
 NWS Short Term Weather Forecast
Tuesday
Night
Tuesday Night: Mostly Clear
Mostly Clear
Wednesday

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

Thursday: Partly Sunny then Slight Chance Rain Showers
Partly Sunny then Slight Chance Rain Showers
Thursday
Night
Thursday Night: Chance Rain Showers
Chance Rain Showers
Friday

Friday: Mostly Sunny
Mostly Sunny
Friday
Night
Friday Night: Mostly Clear
Mostly Clear
Lo 36°F Hi 67°F Lo 39°F Hi 65°F Lo 41°F Hi 63°F Lo 39°F
Click here for the complete forecast.
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