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Thornton, CO 80233 Weather

It is 52°F and clear in Thornton, CO 80233, observed at 9:15 PM MDT. Tonight: Mostly Cloudy then Patchy Fog, low 43°F. Hourly and 10-day forecast from the National Weather Service. Times are local (MDT).

Thornton, CO 80233 current weather

52°F

Clear

H -- / L 43°Feels like 52°

Observed at Broomfield / Jeffco (8.4 mi away), 10/30/2026, 9:15 PM MDT

1 active alert

From the National Weather Service for this forecast zone or county

State alerts

Moderate1Possible threat to life or property

Hourly forecast

NWS, updated 10/30/2026, 11:46 AM PT

  1. Now51°
  2. 10 PM50°
  3. 11 PM48°
  4. 12 AM48°Sat
  5. 1 AM47°
  6. 2 AM46°
  7. 3 AM45°
  8. 4 AM45°
  9. 5 AM44°
  10. 6 AM44°
  11. 7 AM43°
  12. 8 AM43°
  13. 9 AM45°
  14. 10 AM48°
  15. 11 AM50°
  16. 12 PM54°11%
  17. 1 PM57°11%
  18. 2 PM59°11%
  19. 3 PM61°11%
  20. 4 PM61°11%
  21. 5 PM60°11%
  22. 6 PM58°
  23. 7 PM55°
  24. 8 PM52°
  25. 9 PM51°
  26. 10 PM49°
  27. 11 PM50°
  28. 12 AM47°Sun
  29. 1 AM47°
  30. 1 AM46°
  31. 2 AM45°
  32. 3 AM45°
  33. 4 AM44°
  34. 5 AM43°
  35. 6 AM43°
  36. 7 AM44°
  37. 8 AM45°
  38. 9 AM48°
  39. 10 AM52°
  40. 11 AM55°
  41. 12 PM58°
  42. 1 PM60°
  43. 2 PM62°
  44. 3 PM62°
  45. 4 PM60°
  46. 5 PM59°
  47. 6 PM57°
  48. 7 PM55°

10-day forecast

Tap a day for details

  • Today10/30Low 43°High

    Tonight: Patchy fog after 2am. Mostly cloudy, with a low around 43. West northwest wind around 5 mph.

    Mostly Cloudy then Patchy Fog
  • Sat10/3111% chance of precipitationLow 43°High 61°

    Saturday: Patchy fog before 10am. Mostly cloudy, with a high near 61. North northwest wind 1 to 6 mph.

    Saturday Night: Mostly cloudy, with a low around 43. Southwest wind around 3 mph.

    Patchy Fog then Mostly Cloudy
  • Sun11/156% chance of precipitationLow 47°High 62°

    Sunday: Cloudy, with a high near 62. North wind 1 to 7 mph, with gusts as high as 16 mph.

    Sunday Night: Rain showers likely after 5am. Mostly cloudy, with a low around 47. West northwest wind 3 to 7 mph. Chance of precipitation is 60%.

    Cloudy
  • Mon11/270% chance of precipitationLow 42°High 54°

    Monday: Rain showers likely. Mostly cloudy, with a high near 54. Chance of precipitation is 70%.

    Monday Night: A slight chance of rain showers before 11pm. Mostly cloudy, with a low around 42.

    Rain Showers Likely
  • Tue11/3Low 40°High 59°

    Tuesday: Sunny, with a high near 59.

    Tuesday Night: Mostly clear, with a low around 40.

    Sunny
  • Wed11/410% chance of precipitationLow 38°High 57°

    Wednesday: Mostly sunny, with a high near 57.

    Wednesday Night: Partly cloudy, with a low around 38.

    Mostly Sunny
  • Thu11/5Low 39°High 54°

    Thursday: Mostly sunny, with a high near 54.

    Thursday Night: Partly cloudy, with a low around 39.

    Mostly Sunny
  • Fri11/623% chance of precipitationLow High 57°

    Friday: A slight chance of rain showers after 5pm. Mostly sunny, with a high near 57.

    Mostly Sunny then Slight Chance Rain Showers
  • Sat11/7Model blend43% chance of precipitationLow 39°High 55°

    Saturday: Chance of rain. High near 55°. Low that night near 39°. About 0.08 in of precipitation, with about 0.2 in of snow.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Sun11/8Model blend12% chance of precipitationLow 42°High 59°

    Sunday: Mostly sunny. High near 59°. Low that night near 42°.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 39.895, -104.945 from the NWS BOU office, updated 10/30/2026, 11:46 AM PT · Official forecast on weather.gov

Days 9 to 10: NOAA National Blend of Models, station KBJC (Rocky Mtn Metro, 8 mi), model run 10/30/2026, 8:00 PM MDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now51°Mostly Cloudy0%3 mph
  2. 10 PM50°Mostly Cloudy0%2 mph
  3. 11 PM48°Mostly Cloudy0%2 mph
  4. 12 AM48°Mostly Cloudy0%2 mph
  5. 1 AM47°Mostly Cloudy0%2 mph
  6. 2 AM46°Patchy Fog0%2 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow

Radar and satellite

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the weather in Thornton, CO 80233 right now?
The latest observation from Broomfield / Jeffco was 52°F and clear, reported at 10/30/2026, 9:15 PM MDT.
Will it rain in Thornton, CO 80233 in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Thornton, CO 80233?
The first 8 days come from the National Weather Service forecast. Days 9 to 10 (Nov 7 to Nov 8) come from the NOAA National Blend of Models, with highs of 55°F to 59°F and up to a 43% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Thornton, CO 80233 today?
Sunrise is about 7:26 AM MDT and sunset is about 5:59 PM MDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Thornton, CO 80233?
At Northglenn, the 1991 to 2020 normal high in October is 67°F and the normal low is 37°F.

Rain and snow totals

Next 3 days, NWS forecast grid

Rain (liquid)
0.09 in
Snow
0.00 in
Ice
0.00 in

Nearby hazards

Colorado hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: None reported

UV and air quality forecast

EPA and AirNow

AQI forecast tomorrow (Denver-Boulder)
ModeratePM2.5
AQI forecast tomorrow (Denver-Boulder)
ModeratePM2.5

UV index guide · Air quality

Drought

By county

Adams County, week of 10/27/2026

62% of the county is in moderate drought or worse, 10% in extreme drought or worse.

Sun and moon

Local time, center of the area

Sunrise
7:26 AM
Sunset
5:59 PM
Daylight
10 hr 33 min
Moon
Waning Gibbous 74% lit
First light (civil dawn)
6:58 AM
Last light (civil dusk)
6:27 PM
Moonrise
9:44 PM
Moonset
12:43 PM

Normal October weather

Climate

Normal October high 67°, low 37°, precipitation 1.07 in for the month. 1991 to 2020 normals at Northglenn, 4 mi away.

Other places nearby

Data sources

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About this data

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