Weather in Longmont

United States · Colorado · 40.1672, -105.1019

Today Now 7:01 AM

+45° Rain

Hourly forecast

Today10/15 Temperature°F Cloudiness Precipitation Windmph Wind gusts Humidity PressureinHg Dew point°F Visibilitymi UV index
Hourly forecast — Longmont

Forecast in words

Today

Rain throughout the day, high +57°, low +39°. Wind up to 21 mph. Precipitation chance reaches 100%.

Tomorrow

Tomorrow high +57° and clear, nighttime low +32°, no noticeable change.

Week

This week temperatures range from +32° to +75°. Weekly maximum — +75° (Sat). Coldest night — Fri, around +32°. Precipitation expected: Thu. Sunshine expected on 5 of seven days. Strongest wind — Thu, up to 21 mph.

Week vs norm

  1. Today 10/15 +57° −8° usually +66°
  2. Tomorrow 10/16 +57° −8° usually +65°
  3. Sat 10/17 +75° +11° usually +65°
  4. Sun 10/18 +70° +6° usually +64°
  5. Mon 10/19 +66° +3° usually +64°
  6. Tue 10/20 +70° +7° usually +63°
  7. Wed 10/21 +75° +13° usually +63°
  8. Thu 10/22 +54° −9° usually +62°

Difference between forecast daytime high and the 1991–2020 norm for this date.

This day, October 15

Today is cooler than usual for this date.

  • Heat record +82° 2011
  • Cold record +9° 2018
  • Most precipitation 0.3 in 1994
  • Strongest gust 35 mph 2001

Records for this calendar date, 1991-2024, ERA5 reanalysis.

Climate in Longmont

Today is about 8° colder than usual for October.

Climate normals by month, Longmont
Month Daytime / Nighttime Average Precipitation in
Jan +40° / +17° +26° 1.0
Feb +44° / +19° +29° 1.1
Mar +54° / +26° +37° 2.1
Apr +62° / +33° +45° 2.9
May +70° / +43° +55° 4.0
Jun +81° / +53° +66° 2.5
Jul +87° / +59° +72° 2.1
Aug +85° / +58° +70° 1.9
Sep +79° / +50° +63° 1.8
Oct +65° / +38° +49° 1.7
Nov +51° / +26° +36° 1.3
Dec +41° / +19° +28° 0.9

Climatic normals for 1991–2025 years from ERA5-Land reanalysis.

Astronomical data

Sunrise / sunset 7:11 AM | 6:20 PM
Moon 12:27 PM | 9:13 PM
Moon phase Waxing crescent 24%
Next solar eclipse
Calculating for this city…

Weather in the region