Longmont, CO Weather

    04:00 Thursday
    Scattered clouds
    Scattered clouds
    0° Feels like -2°
    New Moon New Moon Illuminated: 1%
    • Today 18 Dec. Partly cloudy 6° / -3° Moderate southeast wind 13 - 29 km/h
    • Tomorrow 19 Dec. Light rain with partly cloudy skies 70% 0.6 mm 19° / -1° Very strong west wind 39 - 78 km/h
    • Saturday 20 Dec. Light rain with partly cloudy skies 70% 6.4 mm 15° / -2° Moderate south wind 15 - 36 km/h
    • Sunday 21 Dec. Partly cloudy 8° / -4° Gentle west wind 4 - 13 km/h
    • Monday 22 Dec. Scattered clouds 19° / -1° Moderate southeast wind 11 - 34 km/h
    • Tuesday 23 Dec. Scattered clouds 15° / 2° Gentle south wind 4 - 19 km/h
    • Wednesday 24 Dec. Scattered clouds 13° / -2° Gentle southwest wind 7 - 16 km/h

    Weather Forecast for Longmont, CO Today

    , 18 December

    Tomorrow

    , 19 December
    04:00 Scattered clouds 0° Scattered clouds
    Feels Like -2°
    Gentle west wind West 6 - 16 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 42%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 13%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -2 °C
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1015 hPa
    • Snowline Snowline 5906 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 16 km/h
    • Visibility Visibility 40 km
    05:00 Scattered clouds -1° Scattered clouds
    Feels Like -3°
    Gentle west wind West 4 - 14 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 48%
    • Dew Point Dew Point -11 °C
    • Clouds Clouds 11%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -3 °C
    • Wind Wind - Average 4 km/h
    • Pressure Pressure 1016 hPa
    • Snowline Snowline 5906 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 14 km/h
    • Visibility Visibility 40 km
    06:00 Scattered clouds -2° Scattered clouds
    Feels Like -2°
    Gentle west wind West 2 - 11 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 51%
    • Dew Point Dew Point -11 °C
    • Clouds Clouds 18%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -2 °C
    • Wind Wind - Average 2 km/h
    • Pressure Pressure 1017 hPa
    • Snowline Snowline 5906 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 11 km/h
    • Visibility Visibility 40 km
    07:00 Scattered clouds -2° Scattered clouds
    Feels Like -1°
    Gentle northwest wind Northwest 2 - 9 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 46%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 17%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -1 °C
    • Wind Wind - Average 2 km/h
    • Pressure Pressure 1018 hPa
    • Snowline Snowline 5906 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 9 km/h
    • Visibility Visibility 40 km
    Scattered clouds 08:00 Scattered clouds -1° Scattered clouds
    Feels Like -2°
    Gentle north wind North 4 - 10 km/h
    		UV Index 0 Low SPF: no
    08:00 Scattered clouds -1° Scattered clouds
    Feels Like -2°
    Gentle north wind North 4 - 10 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 41%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 26%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -2 °C
    • Wind Wind - Average 4 km/h
    • Pressure Pressure 1019 hPa
    • Snowline Snowline 5577 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 10 km/h
    • Visibility Visibility 45 km
    09:00 Scattered clouds 1° Scattered clouds
    Feels Like -2°
    Gentle east wind East 9 - 17 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 37%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 27%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like -2 °C
    • Wind Wind - Average 9 km/h
    • Pressure Pressure 1020 hPa
    • Snowline Snowline 5249 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 17 km/h
    • Visibility Visibility 45 km
    10:00 Scattered clouds 2° Scattered clouds
    Feels Like 0°
    Moderate southeast wind Southeast 8 - 21 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 30%
    • Dew Point Dew Point -13 °C
    • Clouds Clouds 44%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like 0 °C
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1021 hPa
    • Snowline Snowline 5577 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 21 km/h
    • Visibility Visibility 45 km
    Scattered clouds 11:00 Scattered clouds 3° Scattered clouds
    Feels Like 1°
    Moderate southeast wind Southeast 10 - 24 km/h
    		UV Index 1 Low SPF: no
    11:00 Partly cloudy 3° Partly cloudy
    Feels Like 1°
    Moderate southeast wind Southeast 10 - 24 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 27%
    • Dew Point Dew Point -14 °C
    • Clouds Clouds 51%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like 1 °C
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1021 hPa
    • Snowline Snowline 5577 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 24 km/h
    • Visibility Visibility 45 km
    12:00 Partly cloudy 4° Partly cloudy
    Feels Like 2°
    Moderate southeast wind Southeast 10 - 25 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 25%
    • Dew Point Dew Point -14 °C
    • Clouds Clouds 66%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like 2 °C
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1019 hPa
    • Snowline Snowline 5906 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 25 km/h
    • Visibility Visibility 45 km
    13:00 Scattered clouds 5° Scattered clouds
    Feels Like 2°
    Moderate southeast wind Southeast 13 - 29 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 24%
    • Dew Point Dew Point -14 °C
    • Clouds Clouds 49%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like 2 °C
    • Wind Wind - Average 13 km/h
    • Pressure Pressure 1017 hPa
    • Snowline Snowline 6562 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 29 km/h
    • Visibility Visibility 45 km
    Partly cloudy 14:00 Partly cloudy 6° Partly cloudy
    Feels Like 4°
    Moderate southeast wind Southeast 8 - 28 km/h
    		UV Index 1 Low SPF: no
    14:00 Partly cloudy 6° Partly cloudy
    Feels Like 4°
    Moderate southeast wind Southeast 8 - 28 km/h
    		UV Index 1 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 21%
    • Dew Point Dew Point -15 °C
    • Clouds Clouds 79%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like 4 °C
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1015 hPa
    • Snowline Snowline 7218 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 28 km/h
    • Visibility Visibility 45 km
    15:00 Partly cloudy 6° Partly cloudy
    Feels Like 4°
    Moderate southeast wind Southeast 8 - 20 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 24%
    • Dew Point Dew Point -13 °C
    • Clouds Clouds 90%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like 4 °C
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1014 hPa
    • Snowline Snowline 7218 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 20 km/h
    • Visibility Visibility 45 km
    16:00 Partly cloudy 5° Partly cloudy
    Feels Like 3°
    Moderate southeast wind Southeast 10 - 21 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 28%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 76%
    • Snow depth Snow depth 0.39 in
    • Feels Like Feels Like 3 °C
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1014 hPa
    • Snowline Snowline 7546 ft
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 21 km/h
    • Visibility Visibility 45 km
    Partly cloudy 17:00 Partly cloudy 3° Partly cloudy
    Feels Like 1°
    Moderate south wind South 10 - 20 km/h
    		UV Index 0 Low SPF: no
    17:00 Partly cloudy 3° Partly cloudy
    Feels Like 1°
    Moderate south wind South 10 - 20 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 31%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 91%
    • Feels Like Feels Like 1 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 10 km/h
    • Pressure Pressure 1013 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 20 km/h
    • Snowline Snowline 7874 ft
    18:00 Partly cloudy 3° Partly cloudy
    Feels Like 2°
    Gentle south wind South 7 - 19 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 33%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 92%
    • Feels Like Feels Like 2 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1013 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 19 km/h
    • Snowline Snowline 7874 ft
    19:00 Partly cloudy 3° Partly cloudy
    Feels Like 2°
    Gentle southwest wind Southwest 5 - 14 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 34%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 93%
    • Feels Like Feels Like 2 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1012 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 14 km/h
    • Snowline Snowline 8202 ft
    Partly cloudy 20:00 Partly cloudy 2° Partly cloudy
    Feels Like 0°
    Gentle south wind South 8 - 14 km/h
    		UV Index 0 Low SPF: no
    20:00 Overcast 2° Overcast
    Feels Like 0°
    Gentle south wind South 8 - 14 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 33%
    • Dew Point Dew Point -13 °C
    • Clouds Clouds 90%
    • Feels Like Feels Like 0 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 8 km/h
    • Pressure Pressure 1011 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 14 km/h
    • Snowline Snowline 8530 ft
    21:00 Overcast 2° Overcast
    Feels Like 0°
    Gentle south wind South 7 - 15 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 34%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 96%
    • Feels Like Feels Like 0 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 7 km/h
    • Pressure Pressure 1011 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 15 km/h
    • Snowline Snowline 8858 ft
    22:00 Overcast 2° Overcast
    Feels Like 1°
    Gentle south wind South 6 - 14 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 35%
    • Dew Point Dew Point -12 °C
    • Clouds Clouds 96%
    • Feels Like Feels Like 1 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 6 km/h
    • Pressure Pressure 1010 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 14 km/h
    • Snowline Snowline 8858 ft
    Partly cloudy 23:00 Partly cloudy 2° Partly cloudy
    Feels Like 1°
    Gentle southwest wind Southwest 5 - 14 km/h
    		UV Index 0 Low SPF: no
    23:00 Overcast 2° Overcast
    Feels Like 1°
    Gentle southwest wind Southwest 5 - 14 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 38%
    • Dew Point Dew Point -11 °C
    • Clouds Clouds 90%
    • Feels Like Feels Like 1 °C
    • Visibility Visibility 45 km
    • Wind Wind - Average 5 km/h
    • Pressure Pressure 1009 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 14 km/h
    • Snowline Snowline 9843 ft
    24:00 Partly cloudy 1° Partly cloudy
    Feels Like 2°
    Gentle north wind North 1 - 11 km/h
    		UV Index 0 Low SPF: no
    • Rain Rain 0% 0 mm
    • Humidity Humidity 44%
    • Dew Point Dew Point -10 °C
    • Clouds Clouds 62%
    • Feels Like Feels Like 2 °C
    • Visibility Visibility 40 km
    • Wind Wind - Average 1 km/h
    • Pressure Pressure 1008 hPa
    • Fog Fog No
    • Wind - Gusts Wind - Gusts 11 km/h
    • Snowline Snowline 10171 ft

    Sunrise and Sunset

    Sunrise 07:17 Sunset 16:36
    First light 06:47 Midday 11:57 Last light 17:07
    Day length 9h 19m

    Time remaining until sunrise 3h 5m

    Lunar calendar

    Mon Tue Wed Thu Fri Sat Sun
    18 New Moon
    19 New Moon
    20 New Moon
    21 New Moon
    22 First Quarter
    23 First Quarter
    24 First Quarter
    25 First Quarter
    26 First Quarter
    27 First Quarter
    28 First Quarter
    29 First Quarter
    30 First Quarter
    31 First Quarter

    Air quality in Longmont today

    Detail
    33
    Fair O₃ (81 µg/m³)
    • Little health risk.
    • Sensitive people should consider reducing prolonged or intense outdoor activities if they experience symptoms.

    Weather graphs
    Maximum Minimum Rainfall

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