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Boulder, CO 80304 Weather

Today: Partly Sunny, high 64°F, low 45°F. Hourly and 10-day forecast from the National Weather Service. Times are local (MDT).

Boulder, CO 80304 current weather

43°F

Partly Sunny

Forecast for this hour. No recent report from a nearby station.

H 64° / L 45°

No recent station report. NWS hourly forecast updated 10/29/2026, 11:46 PM PT

1 active alert

From the National Weather Service for this forecast zone or county

State alerts

Hourly forecast

NWS, updated 10/29/2026, 11:46 PM PT

  1. Now43°
  2. 9 AM45°
  3. 10 AM50°
  4. 11 AM52°
  5. 12 PM58°
  6. 1 PM60°
  7. 2 PM61°
  8. 3 PM63°
  9. 4 PM62°
  10. 5 PM60°
  11. 6 PM57°
  12. 7 PM52°
  13. 8 PM52°
  14. 9 PM51°
  15. 10 PM50°
  16. 11 PM49°
  17. 12 AM48°Sat
  18. 1 AM48°
  19. 2 AM47°
  20. 3 AM45°
  21. 4 AM45°
  22. 5 AM45°
  23. 6 AM45°
  24. 7 AM45°
  25. 8 AM45°
  26. 9 AM46°
  27. 10 AM49°
  28. 11 AM51°
  29. 12 PM54°
  30. 1 PM58°
  31. 2 PM61°
  32. 3 PM62°
  33. 4 PM62°
  34. 5 PM60°
  35. 6 PM56°
  36. 7 PM55°
  37. 8 PM52°
  38. 9 PM50°
  39. 10 PM49°
  40. 11 PM48°
  41. 12 AM47°Sun
  42. 1 AM46°
  43. 1 AM45°
  44. 2 AM45°
  45. 3 AM45°
  46. 4 AM45°
  47. 5 AM45°
  48. 6 AM45°

10-day forecast

Tap a day for details

  • Today10/30Low 45°High 64°

    Today: Partly sunny. High near 64, with temperatures falling to around 60 in the afternoon. Southeast wind around 3 mph.

    Tonight: Partly cloudy, with a low around 45. Northwest wind 0 to 3 mph.

    Partly Sunny
  • Sat10/31Low 44°High 62°

    Saturday: Mostly cloudy. High near 62, with temperatures falling to around 60 in the afternoon. North northeast wind 0 to 3 mph.

    Saturday Night: Partly cloudy, with a low around 44. West northwest wind 0 to 5 mph.

    Mostly Cloudy
  • Sun11/144% chance of precipitationLow 45°High 59°

    Sunday: A slight chance of rain showers after 5pm. Mostly cloudy, with a high near 59. North northeast wind 0 to 3 mph. Chance of precipitation is 20%.

    Sunday Night: A chance of rain showers. Mostly cloudy, with a low around 45. Chance of precipitation is 40%.

    Mostly Cloudy then Slight Chance Rain Showers
  • Mon11/273% chance of precipitationLow 37°High 55°

    Monday: A chance of rain showers before 11am, then showers and thunderstorms likely. Mostly cloudy, with a high near 55.

    Monday Night: A chance of rain showers before 11pm. Mostly cloudy, with a low around 37.

    Showers And Thunderstorms Likely
  • Tue11/3Low 38°High 59°

    Tuesday: Mostly sunny, with a high near 59.

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

    Mostly Sunny
  • Wed11/427% chance of precipitationLow 37°High 55°

    Wednesday: A chance of rain showers after 5pm. Mostly sunny, with a high near 55.

    Wednesday Night: A chance of rain showers before 8pm, then a chance of rain and snow showers between 8pm and 5am. Mostly cloudy, with a low around 37.

    Mostly Sunny then Chance Rain Showers
  • Thu11/513% chance of precipitationLow 38°High 53°

    Thursday: Mostly sunny, with a high near 53.

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

    Mostly Sunny
  • Fri11/6Model blend19% chance of precipitationLow 39°High 57°

    Friday: Partly cloudy. High near 57°. Low that night near 39°.

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

  • Sat11/7Model blend31% chance of precipitationLow 40°High 56°

    Saturday: Partly cloudy, slight chance of rain. High near 56°. Low that night near 40°. About 0.10 in of precipitation, with about 0.1 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 blend14% chance of precipitationLow 41°High 59°

    Sunday: Partly cloudy. High near 59°. Low that night near 41°. About 0.02 in of precipitation.

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

Forecast for 40.050, -105.292 from the NWS BOU office, updated 10/29/2026, 11:46 PM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KBDU (Boulder Muni, 4 mi), model run 10/30/2026, 2:00 AM 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. Now43°Partly Sunny1%1 mph
  2. 9 AM45°Partly Sunny1%1 mph
  3. 10 AM50°Partly Sunny1%1 mph
  4. 11 AM52°Partly Sunny1%2 mph
  5. 12 PM58°Partly Sunny3%2 mph
  6. 1 PM60°Mostly Sunny3%2 mph

Hourly details

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

National radar

NEXRAD (up to 24 hours) and GOES

Latest

Frequently asked questions

What is the high temperature today in Boulder, CO 80304?
The National Weather Service forecast for today calls for a high near 64°F. Partly Sunny.
Will it rain in Boulder, CO 80304 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 Boulder, CO 80304?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 6 to Nov 8) come from the NOAA National Blend of Models, with highs of 56°F to 59°F and up to a 31% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Boulder, CO 80304 today?
Sunrise is about 7:28 AM MDT and sunset is about 6:01 PM MDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Boulder, CO 80304?
At Boulder, the 1991 to 2020 normal high in October is 66°F and the normal low is 37°F.

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

UV index guide · Air quality

Drought

By county

Boulder County, week of 10/27/2026

100% of the county is in moderate drought or worse, 100% in extreme drought or worse.

Sun and moon

Local time, center of the area

Sunrise
7:28 AM
Sunset
6:01 PM
Daylight
10 hr 33 min
Moon
Waning Gibbous 79% lit
First light (civil dawn)
7 AM
Last light (civil dusk)
6:29 PM
Moonrise
9:45 PM
Moonset
12:45 PM

Normal October weather

Climate

Normal October high 66°, low 37°, precipitation 1.62 in for the month. 1991 to 2020 normals at Boulder, 4 mi away.

Other places nearby

Data sources

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About this data

Weather and emergencies: Weather, air quality and hazard information on this page is delayed and may be incomplete. It is not a substitute for official warnings. Always follow the National Weather Service, local emergency management and public safety officials. In an emergency, call 911. For evacuation orders, use your local official alert system.

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