Longmont weather — 10-day forecast

Temperature, rain, wind and feels-like in Longmont, hour by hour and over 10 days, with the seasonal normal for context.

Now

Reading from 21:00 · NOAA HRRR model

7 °C

Rain

Feels like 5 °C

8.8 km/hforce 2

Next 12 h

  • 217°95 %
  • 227°95 %
  • 237°95 %
  • 007°85 %
  • 017°13 %
  • 027°13 %
  • 037°13 %
  • 047°13 %
  • 057°14 %
  • 067°13 %
  • 077°83 %
  • 07:12Sunrise
  • 087°90 %
  • 097°89 %
Humidity
97 %
Dew point
7 °C
Gusts
12.9 km/h
Clouds
100 %
Pressure
1,017 hPa ↑

Grid point 0.6 km away · 3.0 km grid · elevation 1,528 m

Air quality

The European air-quality index for the city, and the pollutants that set it.

Reading from 00:00
9
Good

Index set by Ozone

Ozone
22.4µg/m³
PM2.5
2.8µg/m³
PM10
2.8µg/m³
Nitrogen dioxide
7.9µg/m³
Sulphur dioxide
0.4µg/m³
Carbon monoxide
158.0µg/m³
Dust (AOD)
0.00

Generated using Copernicus Atmosphere Monitoring Service information

Hour by hour

Step-by-step detail: temperature, wind, cloud cover and ultraviolet.

Estimated from a deterministic model, not an ensemble probability.
°C

10 days

Each day's extremes and the chance of rain, out to the end of the run.

0° → 22°

Rain probability (> 1 mm): 50 ECMWF ensemble members.

  • Today

    Rain100 %

    8°

    7°

  • Thu

    Light drizzle100 %

    11°

    4°

  • Fri

    Clear sky98 %

    10°

    0°

  • Sat

    Clear sky

    22°

    1°

  • Sun

    Partly cloudy

    20°

    6°

  • Mon

    Mainly clear

    19°

    7°

  • Tue

    Mainly clear

    19°

    8°

  • Wed

    Mainly clear

    19°

    8°

  • Thu

    Mainly clear

    20°

    7°

  • Fri

    Mainly clear0 mm

    21°

    9°

Gusts · Thu 58.2 km/h

Sun and UV

Sunrise, sunset, day length and ultraviolet intensity.

Max UV0low
Sunrise
07:11
Daylight
11 h 11
Sunset
18:22

Radiation · 0.0 MJ/m²

Today in Longmont the mean temperature will be 7.3 °C — -3.0 °C against the normal for 14 October, measured from 1940 to 2026. (1,290 obs.)

Longmont climate — normals and trends →