Thornton, CO Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Thornton, CO in one place.
Sunny, with a high near 99. North wind 2 to 9 mph, with gusts as high as 16 mph.
Local Weather Overview
This forecast page for Thornton, CO is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Jul 18, 2026 9:44 PM MDT.
The active forecast window currently covers Jul 20 to Jul 25, 2026 for Thornton, CO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Jul 20 to Jul 25, 2026
- Latest sync
- Jul 18, 2026 9:44 PM MDT
- Forecast office
- BOU
- Source
- NOAA / NWS
Daily Outlook
This Week in Thornton
Monday looks like the warmest upcoming period in Thornton at 99 degrees F.
Thursday Night is the coolest period ahead with temperatures near 64 degrees F.
The strongest winds are forecast for Tuesday at about 6 to 10 mph NE.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jul 18, 2026 9:44 PM MDT
- Coverage
- 6 days
- Time zone
- America/Denver
- Forecast office
- BOU
- Radar station
- KFTG
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 69. North northeast wind 6 to 9 mph, with gusts as high as 18 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 93. Chance of precipitation is 40%.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 65.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 93.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 65.
Showers and thunderstorms likely after noon. Partly sunny, with a high near 90.
A chance of showers and thunderstorms before midnight. Mostly cloudy, with a low around 64.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 88.
A chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 64.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 92.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Jul 20
|
Sunny
|
99°F |
2 to 9 mph
N
|
|
Monday Night
Jul 20
|
Chance Showers And Thunderstorms then Partly Cloudy
|
69°F |
6 to 9 mph
NNE
|
|
Tuesday
Jul 21
|
Mostly Sunny then Chance Showers And Thunderstorms
|
93°F |
6 to 10 mph
NE
|
|
Tuesday Night
Jul 21
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
65°F |
3 to 10 mph
S
|
|
Wednesday
Jul 22
|
Mostly Sunny then Chance Showers And Thunderstorms
|
93°F |
3 to 7 mph
N
|
|
Wednesday Night
Jul 22
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
65°F |
2 to 7 mph
NW
|
|
Thursday
Jul 23
|
Partly Sunny then Showers And Thunderstorms Likely
|
90°F |
2 to 6 mph
NNE
|
|
Thursday Night
Jul 23
|
Chance Showers And Thunderstorms then Mostly Cloudy
|
64°F |
1 to 6 mph
SSW
|
|
Friday
Jul 24
|
Mostly Sunny then Chance Showers And Thunderstorms
|
88°F |
1 to 5 mph
SSE
|
|
Friday Night
Jul 24
|
Chance Showers And Thunderstorms then Partly Cloudy
|
64°F |
5 mph
SSW
|
|
Saturday
Jul 25
|
Mostly Sunny then Chance Showers And Thunderstorms
|
92°F |
2 to 6 mph
N
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Thornton.
