Thornton, CO Weather Forecast
Local 7-day forecast
Mostly Sunny then Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Thornton, CO in one place.
A chance of showers and thunderstorms after 4pm. Mostly sunny. High near 92, with temperatures falling to around 86 in the afternoon. South southeast wind 2 to 7 mph. Chance of precipitation is 40%.
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: Aug 23, 2026 12:46 PM MDT.
The active forecast window currently covers Aug 24 to Aug 29, 2026 for Thornton, CO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Aug 24 to Aug 29, 2026
- Latest sync
- Aug 23, 2026 12:46 PM MDT
- Forecast office
- BOU
- Source
- NOAA / NWS
Daily Outlook
This Week in Thornton
Friday looks like the warmest upcoming period in Thornton at 93 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Monday Night at about 3 to 8 mph SW.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Aug 23, 2026 12:46 PM MDT
- Coverage
- 7 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 62. Southwest wind 3 to 8 mph. Chance of precipitation is 30%.
A chance of showers and thunderstorms between noon and 3pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 88. East northeast wind 2 to 8 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 9pm, then a chance of showers and thunderstorms between 9pm and midnight. Partly cloudy, with a low around 61. Chance of precipitation is 50%.
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 61.
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 90.
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 61.
A chance of showers and thunderstorms after noon. Mostly sunny, with a high near 93.
A slight chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 62.
Mostly sunny, with a high near 93.
Partly cloudy, with a low around 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Monday
Aug 24
|
Mostly Sunny then Chance Showers And Thunderstorms
|
92°F |
2 to 7 mph
SSE
|
|
Monday Night
Aug 24
|
Chance Showers And Thunderstorms then Partly Cloudy
|
62°F |
3 to 8 mph
SW
|
|
Tuesday
Aug 25
|
Mostly Sunny then Chance Showers And Thunderstorms
|
88°F |
2 to 8 mph
ENE
|
|
Tuesday Night
Aug 25
|
Chance Showers And Thunderstorms then Partly Cloudy
|
61°F |
2 to 7 mph
WSW
|
|
Wednesday
Aug 26
|
Mostly Sunny then Chance Showers And Thunderstorms
|
88°F |
2 to 6 mph
NE
|
|
Wednesday Night
Aug 26
|
Chance Showers And Thunderstorms then Partly Cloudy
|
61°F |
2 to 6 mph
S
|
|
Thursday
Aug 27
|
Mostly Sunny then Slight Chance Showers And Thunderstorms
|
90°F |
2 to 6 mph
E
|
|
Thursday Night
Aug 27
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
61°F |
5 mph
SSW
|
|
Friday
Aug 28
|
Mostly Sunny then Chance Showers And Thunderstorms
|
93°F |
3 to 7 mph
WSW
|
|
Friday Night
Aug 28
|
Slight Chance Showers And Thunderstorms then Partly Cloudy
|
62°F |
7 mph
S
|
|
Saturday
Aug 29
|
Mostly Sunny
|
93°F |
3 to 8 mph
SSE
|
|
Saturday Night
Aug 29
|
Partly Cloudy
|
63°F |
5 to 8 mph
SSW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Thornton.
