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Lyons, CO 80540 Weather

It is 63°F and clear in Lyons, CO 80540, observed at 4:55 PM MDT. Today: Mostly Sunny, high 59°F, low 43°F. Hourly and 10-day forecast from the National Weather Service. Times are local (MDT).

Lyons, CO 80540 current weather

63°F

Clear

H 59° / L 43°Feels like 63°

  • No rain expected in the next 12 hours

Observed at Vance Brand Airport (12.3 mi away), 10/29/2026, 4:55 PM MDT

Hourly forecast

NWS, updated 10/29/2026, 4:06 PM PT

  1. Now54°
  2. 6 PM50°
  3. 7 PM49°
  4. 8 PM45°
  5. 9 PM45°
  6. 10 PM45°
  7. 11 PM45°
  8. 12 AM45°Fri
  9. 1 AM44°
  10. 2 AM44°
  11. 3 AM44°
  12. 4 AM44°
  13. 5 AM44°
  14. 6 AM43°
  15. 7 AM43°
  16. 8 AM44°
  17. 9 AM48°
  18. 10 AM54°
  19. 11 AM56°
  20. 12 PM58°
  21. 1 PM59°
  22. 2 PM59°
  23. 3 PM61°
  24. 4 PM59°
  25. 5 PM57°
  26. 6 PM54°
  27. 7 PM50°
  28. 8 PM49°
  29. 9 PM49°
  30. 10 PM49°
  31. 11 PM48°
  32. 12 AM47°Sat
  33. 1 AM47°
  34. 2 AM46°
  35. 3 AM46°
  36. 4 AM47°
  37. 5 AM47°
  38. 6 AM46°
  39. 7 AM46°
  40. 8 AM47°
  41. 9 AM48°
  42. 10 AM50°
  43. 11 AM53°
  44. 12 PM55°
  45. 1 PM56°
  46. 2 PM58°
  47. 3 PM58°
  48. 4 PM56°

10-day forecast

Tap a day for details

  • Today10/29Low 43°High 59°

    This Afternoon: Mostly sunny. High near 59, with temperatures falling to around 54 in the afternoon. East southeast wind around 3 mph.

    Tonight: Partly cloudy, with a low around 43. West wind around 5 mph.

    Mostly Sunny
  • Fri10/30Low 46°High 61°

    Friday: Partly sunny. High near 61, with temperatures falling to around 57 in the afternoon. Southwest wind 1 to 5 mph.

    Friday Night: Partly cloudy, with a low around 46. Southwest wind around 3 mph.

    Partly Sunny
  • Sat10/31Low 45°High 58°

    Saturday: Partly sunny, with a high near 58. East southeast wind around 2 mph.

    Saturday Night: Partly cloudy, with a low around 45.

    Partly Sunny
  • Sun11/161% chance of precipitationLow 47°High 54°

    Sunday: A chance of rain showers after 5pm. Mostly cloudy, with a high near 54.

    Sunday Night: Rain showers likely. Mostly cloudy, with a low around 47.

    Mostly Cloudy then Chance Rain Showers
  • Mon11/276% chance of precipitationLow 40°High 52°

    Monday: Rain showers. Mostly cloudy, with a high near 52.

    Monday Night: A chance of rain showers before 5am. Mostly cloudy, with a low around 40.

    Rain Showers
  • Tue11/310% chance of precipitationLow 38°High 53°

    Tuesday: Mostly sunny, with a high near 53.

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

    Mostly Sunny
  • Wed11/420% chance of precipitationLow 37°High 51°

    Wednesday: A slight chance of rain showers after 5pm. Mostly sunny, with a high near 51.

    Wednesday Night: A slight chance of rain showers before 8pm, then a slight chance of snow showers between 8pm and 11pm. Partly cloudy, with a low around 37.

    Mostly Sunny then Slight Chance Rain Showers
  • Thu11/5Model blend14% chance of precipitationLow 38°High 54°

    Thursday: Partly cloudy. High near 54°. Low that night near 38°.

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

  • Fri11/6Model blend29% chance of precipitationLow 38°High 54°

    Friday: Partly cloudy, slight chance of rain. High near 54°. Low that night near 38°.

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

  • Sat11/7Model blend24% chance of precipitationLow 37°High 54°

    Saturday: Partly cloudy, slight chance of rain. High near 54°. Low that night near 37°.

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

Forecast for 40.246, -105.365 from the NWS BOU office, updated 10/29/2026, 4:06 PM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KLMO (Longmont/Brand Arpt, 12 mi), model run 10/29/2026, 2:00 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. Now54°Mostly Sunny0%3 mph
  2. 6 PM50°Partly Cloudy0%2 mph
  3. 7 PM49°Mostly Clear0%2 mph
  4. 8 PM45°Mostly Clear0%2 mph
  5. 9 PM45°Partly Cloudy0%3 mph
  6. 10 PM45°Partly Cloudy0%5 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 Lyons, CO 80540 right now?
The latest observation from Vance Brand Airport was 63°F and clear, reported at 10/29/2026, 4:55 PM MDT.
What is the high temperature today in Lyons, CO 80540?
The National Weather Service forecast for this afternoon calls for a high near 59°F. Mostly Sunny.
Will it rain in Lyons, CO 80540 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 Lyons, CO 80540?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 5 to Nov 7) come from the NOAA National Blend of Models, with highs near 54°F. Model guidance this far out often changes.
What time is sunrise and sunset in Lyons, CO 80540 today?
Sunrise is about 7:27 AM MDT and sunset is about 6:02 PM MDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Lyons, CO 80540?
At Allenspark 3nw, the 1991 to 2020 normal high in October is 52°F and the normal low is 29°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 (Rocky Mountain National Park)
51ModerateOzone
AQI forecast tomorrow (Rocky Mountain National Park)
48GoodOzone

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
7:27 AM
Sunset
6:02 PM
Daylight
10 hr 34 min
Moon
Waning Gibbous 84% lit
First light (civil dawn)
6:59 AM
Last light (civil dusk)
6:30 PM
Moonrise
8:33 PM
Moonset
11:45 AM

Normal October weather

Climate

Normal October high 52°, low 29°. 1991 to 2020 normals at Allenspark 3nw, 8 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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