Longmont Weather Today — Colorado, United States
Current temperature, rain chance, humidity, wind and air quality in Longmont, plus an hourly and 3-day forecast. Updated through the day.
03:10
Sat, 19 Sep 2026
📍 Colorado, United States
Longmont??
16
°C
Overcast
Feels 14°C · 61°F
💧 70% Humidity
💨 ↗ 8.3 km/h NE
👁 10 km Visibility
🌧 0 mm Precip
☁ 100% Cloud
☀️ UV Low
🌿 AQI Good
☀️ UV Index
0
Low
🔵 Pressure
1012
hPa · 29.89 in
💨 Wind
8.3
km/h · Gust 8.3 km/h
↗ NE
💧 Humidity
70%
Dew point 10.4°C
👁 Visibility
10
km · 6 miles
🌡 Heat Index
15.9°
Wind chill 15.9°C
🌿 Air Quality
Good
US EPA Index: 1
🌅
Sunrise
06:45 AM
🌇
Sunset
07:03 PM
📅 3-Day Forecast
Saturday
19 Sep 2026
Patchy rain nearby
29°
/
13°
💧65%
🌧7.06mm
💨43
☀️UV 6.3
Sunday
20 Sep 2026
Patchy rain nearby
22°
/
10°
💧65%
🌧5.65mm
💨17
☀️UV 6.8
Monday
21 Sep 2026
Sunny
25°
/
9°
💧58%
🌧0.09mm
💨14
☀️UV 7.2
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