Current Conditions

Thornton, Colorado

86°F30°C
Drizzle

Wind

NNW 5 mph8 km/h

Humidity

22%

Cloud Cover

53%

As of Wednesday, September 2, 2026 at 6:32 PM MDT

Today's Outlook

Night

Partly cloudy, with a low around 72°F22°C. Light wind from the NW around 4 mph7 km/h. 13% chance of drizzle.

7-Day Forecast

DayConditionHigh (°F)Low (°F)Precip (mm)Cloud Cover (%)Wind (mph)
DrizzleHigh 89°F32°CLow 72°F22°CPrecip 0.01 in0.2 mm13%Cloud 34%Wind E 4 mph7 km/hWednesday: Partly cloudy and hot, with a high of 89°F32°C. Light wind from the SE around 4 mph7 km/h. Dry air. Wednesday Night: Partly cloudy, with a low around 72°F22°C. Light wind from the NW around 4 mph7 km/h. 13% chance of drizzle.
ClearHigh 91°F33°CLow 58°F14°CPrecip 0 in0 mmCloud 13%Wind S 5 mph7 km/hThursday: Mostly clear and hot, with a high of 91°F33°C and morning low of 58°F14°C. Light wind from the S around 4 mph7 km/h. Dry air. Thursday Night: Mostly clear, with a low around 61°F16°C. Breezy from the SE at 5 to 7 mph8 to 12 km/h.
ClearHigh 93°F34°CLow 58°F15°CPrecip 0 in0.1 mm6%Cloud 15%Wind SSW 5 mph7 km/hFriday: Mostly clear and hot, with a high of 93°F34°C and morning low of 58°F15°C. Light wind from the S around 4 mph7 km/h. Dry air. Friday Night: Mostly clear, with a low around 62°F17°C. Light wind from the WSW around 5 mph7 km/h.
ClearHigh 91°F33°CLow 62°F16°CPrecip 0 in0.1 mm3%Cloud 38%Wind W 4 mph7 km/hSaturday: Partly cloudy and hot, with a high of 91°F33°C and morning low of 62°F16°C. Light wind from the NNW around 4 mph7 km/h. Dry air. Saturday Night: Partly cloudy, with a low around 64°F18°C. Light wind from the WSW around 5 mph7 km/h.
DrizzleHigh 90°F32°CLow 63°F17°CPrecip 0.02 in0.6 mm24%Cloud 41%Wind WSW 4 mph6 km/hSunday: Partly cloudy and hot, with a high of 90°F32°C and morning low of 63°F17°C. Light wind from the ENE around 4 mph6 km/h. Dry air. Sunday Night: Partly cloudy, with a low around 66°F19°C. Light wind from the WSW around 4 mph7 km/h. 24% chance of drizzle in the evening.
ShowersHigh 90°F32°CLow 63°F17°CPrecip 0.03 in0.8 mm38%Cloud 55%Wind SSW 4 mph7 km/hMonday: Mostly cloudy and hot, with a high of 90°F32°C and morning low of 63°F17°C. Light wind from the S around 4 mph7 km/h. 17% chance of drizzle in the afternoon. Dry air. Monday Night: Mostly cloudy, with a low around 65°F19°C. Light wind from the SW around 4 mph7 km/h. 38% chance of showers in the evening.
DrizzleHigh 87°F31°CLow 60°F15°CPrecip 0.02 in0.4 mm15%Cloud 30%Wind ESE 5 mph8 km/hTuesday: Partly cloudy and hot, with a high of 87°F31°C and morning low of 60°F15°C. Breezy from the ESE at 5 to 7 mph8 to 12 km/h. Dry air. Tuesday Night: Partly cloudy, with a low around 63°F17°C. Breezy from the NNW at 5 to 7 mph8 to 12 km/h. 15% chance of drizzle in the evening.

15-Day Forecast

Day High Low Precip Cloud Cover Condition Wind
WednesdaySep 289°F32°C72°F22°C0.01 in0.2 mm· 13%34%DrizzleE 4 mph7 km/h
ThursdaySep 391°F33°C58°F14°C0 in0 mm· —13%ClearS 5 mph7 km/h
FridaySep 493°F34°C58°F15°C0 in0.1 mm· 6%15%ClearSSW 5 mph7 km/h
SaturdaySep 591°F33°C62°F16°C0 in0.1 mm· 3%38%ClearW 4 mph7 km/h
SundaySep 690°F32°C63°F17°C0.02 in0.6 mm· 24%41%DrizzleWSW 4 mph6 km/h
MondaySep 790°F32°C63°F17°C0.03 in0.8 mm· 38%55%ShowersSSW 4 mph7 km/h
TuesdaySep 887°F31°C60°F15°C0.02 in0.4 mm· 15%30%DrizzleESE 5 mph8 km/h
WednesdaySep 985°F29°C59°F15°C0.03 in0.8 mm· 16%48%DrizzleE 4 mph7 km/h
ThursdaySep 1083°F28°C60°F15°C0.05 in1.3 mm· 19%51%DrizzleSSE 4 mph7 km/h
FridaySep 1184°F29°C58°F14°C0.04 in1.1 mm· 24%37%DrizzleSW 4 mph7 km/h
SaturdaySep 1285°F29°C57°F14°C0.04 in1 mm· 12%35%DrizzleSW 5 mph8 km/h
SundaySep 1382°F28°C57°F14°C0.03 in0.8 mm· 14%38%DrizzleSSW 5 mph8 km/h
MondaySep 1481°F27°C55°F13°C0.04 in0.9 mm· 14%36%DrizzleSSE 5 mph8 km/h
TuesdaySep 1581°F27°C54°F12°C0.03 in0.7 mm· 12%29%DrizzleSE 5 mph8 km/h
WednesdaySep 1679°F26°C53°F12°C0.03 in0.8 mm· 15%34%DrizzleESE 5 mph7 km/h

Nearby Cities

About This Forecast

This forecast is powered by WeatherMesh, the world's most advanced and accurate weather model powered by AI. WeatherMesh is built on proprietary data from WindBorne's Global Sounding Balloon constellation — the world's largest fleet of autonomous, long-duration weather balloons — collecting observations across 100% of Earth, including over oceans and remote regions where no other data exists.

WeatherMesh consistently outperforms legacy models in independent benchmarks. View Benchmarks →

Access WeatherMesh forecasts programmatically via our API. API Documentation →

How to Access Weather Forecasts

PatternExampleDescription
/weather/{country}/{city}//weather/united-states/san-francisco/City forecast (canonical URL)
/weather/{city}//weather/tokyo/Shorthand — redirects to most populous match
/weather/{country}/{region}/{city}//weather/united-states/california/san-francisco/With region — redirects to canonical
/weather/nearby?lat={lat}&lon={lon}/weather/nearby?lat=48.1&lon=11.5Find nearest city by coordinates
/weather/{country}//weather/germany/Country index — all cities by region

Country and city names use lowercase slugs with hyphens (e.g. united-states, san-francisco). Arbitrary city names are supported — if not in our database, we geocode the name and serve the forecast for that location.

For programmatic access, use theWindBorne Forecast APIwhich returns structured JSON for any coordinates worldwide.

Coordinates: 39.8680°N, 104.9719°W·Elevation: 1631m·Timezone: America/Denver·Population: 133,451