Dailymet

Weather Longmont: Current forecast

Longmont / Colorado (CO) / United States

39.6 °F
Feels like 34.2 °F
Min 36 °F / Max 59 °F
Weather Longmont: Overcast, 40 °F Overcast
7.6 mph SE
Wind
8.8 mph SE
Gusts
1017 hPa
Pressure
0 mm
Precipitation
81 %
Humidity
0
UV index

Pollen (today)

Hazel None
Alder None
Birch None
Oak None
Grass None
Mugwort None
Ragweed None
06:04 / 19:53
Sunrise / Sunset
17:15 / 04:26
Moonrise / Moonset
Waxing Moon (87 %)
Moon phase

Updated: Apr 28, 2026, 9:45 CEST Apr 28, 2026, 1:45 MDT

Today's Summary

If you head out in Longmont today, you'll see a overcast sky. The thermometer currently shows 4.2°C. Take an umbrella with you today – you'll probably need it. During the day temperatures will range between 2.2°C and 14.9°C.

Hourly forecast – Longmont, today

Apr 28, 01:00
40 °F
Overcast
Longmont Apr 28, 01:00: Overcast, 40 °F
Apr 28, 02:00
39 °F
Partly cloudy
Longmont Apr 28, 02:00: Partly cloudy, 39 °F
Apr 28, 03:00
38 °F
Partly cloudy
Longmont Apr 28, 03:00: Partly cloudy, 38 °F
Apr 28, 04:00
38 °F
Patchy rain possible
Longmont Apr 28, 04:00: Patchy rain possible, 38 °F
Apr 28, 05:00
39 °F
Cloudy
Longmont Apr 28, 05:00: Cloudy, 39 °F
Apr 28, 06:00
40 °F
Partly cloudy
Longmont Apr 28, 06:00: Partly cloudy, 40 °F
Apr 28, 07:00
40 °F
Patchy rain possible
Longmont Apr 28, 07:00: Patchy rain possible, 40 °F
Apr 28, 08:00
43 °F
Patchy rain possible
Longmont Apr 28, 08:00: Patchy rain possible, 43 °F
Apr 28, 09:00
45 °F
Patchy rain possible
Longmont Apr 28, 09:00: Patchy rain possible, 45 °F
Apr 28, 10:00
48 °F
Patchy rain possible
Longmont Apr 28, 10:00: Patchy rain possible, 48 °F
Apr 28, 11:00
50 °F
Light rain shower
Longmont Apr 28, 11:00: Light rain shower, 50 °F
Apr 28, 12:00
53 °F
Patchy light rain with thunder
Longmont Apr 28, 12:00: Patchy light rain with thunder, 53 °F
Apr 28, 13:00
55 °F
Thundery outbreaks possible
Longmont Apr 28, 13:00: Thundery outbreaks possible, 55 °F
Apr 28, 14:00
56 °F
Thundery outbreaks possible
Longmont Apr 28, 14:00: Thundery outbreaks possible, 56 °F
Apr 28, 15:00
57 °F
Thundery outbreaks possible
Longmont Apr 28, 15:00: Thundery outbreaks possible, 57 °F
Apr 28, 16:00
58 °F
Patchy rain possible
Longmont Apr 28, 16:00: Patchy rain possible, 58 °F
Apr 28, 17:00
58 °F
Partly cloudy
Longmont Apr 28, 17:00: Partly cloudy, 58 °F
Apr 28, 18:00
57 °F
Patchy rain possible
Longmont Apr 28, 18:00: Patchy rain possible, 57 °F
Apr 28, 19:00
51 °F
Sunny
Longmont Apr 28, 19:00: Sunny, 51 °F
Apr 28, 20:00
48 °F
Patchy rain possible
Longmont Apr 28, 20:00: Patchy rain possible, 48 °F
Apr 28, 21:00
45 °F
Clear
Longmont Apr 28, 21:00: Clear, 45 °F
Apr 28, 22:00
43 °F
Clear
Longmont Apr 28, 22:00: Clear, 43 °F
Apr 28, 23:00
41 °F
Clear
Longmont Apr 28, 23:00: Clear, 41 °F
Apr 29, 00:00
40 °F
Patchy rain possible
Longmont Apr 29, 00:00: Patchy rain possible, 40 °F
Time
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
18
19
20
21
22
23
00
Longmont Apr 28, 01:00: Overcast
Longmont Apr 28, 02:00: Partly cloudy
Longmont Apr 28, 03:00: Partly cloudy
Longmont Apr 28, 04:00: Patchy rain possible
Longmont Apr 28, 05:00: Cloudy
Longmont Apr 28, 06:00: Partly cloudy
Longmont Apr 28, 07:00: Patchy rain possible
Longmont Apr 28, 08:00: Patchy rain possible
Longmont Apr 28, 09:00: Patchy rain possible
Longmont Apr 28, 10:00: Patchy rain possible
Longmont Apr 28, 11:00: Light rain shower
Longmont Apr 28, 12:00: Patchy light rain with thunder
Longmont Apr 28, 13:00: Thundery outbreaks possible
Longmont Apr 28, 14:00: Thundery outbreaks possible
Longmont Apr 28, 15:00: Thundery outbreaks possible
Longmont Apr 28, 16:00: Patchy rain possible
Longmont Apr 28, 17:00: Partly cloudy
Longmont Apr 28, 18:00: Patchy rain possible
Longmont Apr 28, 19:00: Sunny
Longmont Apr 28, 20:00: Patchy rain possible
Longmont Apr 28, 21:00: Clear
Longmont Apr 28, 22:00: Clear
Longmont Apr 28, 23:00: Clear
Longmont Apr 29, 00:00: Patchy rain possible
Temperature (°F)
Chance of rain (%)
0
0
0
71
0
0
100
100
78
100
100
100
100
100
61
83
0
60
0
100
0
0
0
100
Precipitation
—
—
—
0 mm
—
—
0.1 mm
0.1 mm
0 mm
0.1 mm
0.3 mm
0.4 mm
0.1 mm
0.1 mm
0 mm
0 mm
—
0.1 mm
—
0.2 mm
—
—
—
0.1 mm
Wind (mph)
SE
8
SE
8
ESE
5
NE
4
N
6
N
7
NNE
4
NNE
5
NNE
7
NE
7
NE
8
ENE
6
NE
9
ENE
9
ESE
6
SSE
5
ESE
3
ENE
2
N
4
NW
1
SSE
3
SSW
4
WSW
4
W
2
Pressure (hPa)
1017
1013
1013
1013
1014
1014
1014
1014
1013
1013
1013
1013
1012
1012
1011
1011
1011
1012
1013
1015
1016
1017
1017
1018
Humidity (%)
81 %
89 %
93 %
94 %
91 %
89 %
85 %
81 %
72 %
65 %
55 %
50 %
44 %
39 %
35 %
32 %
30 %
30 %
35 %
50 %
54 %
56 %
56 %
60 %
Cloud cover (%)
100 %
60 %
58 %
64 %
66 %
56 %
73 %
83 %
87 %
74 %
99 %
71 %
80 %
71 %
50 %
88 %
51 %
71 %
19 %
82 %
5 %
5 %
5 %
84 %

14-day weather forecast – Longmont

14-day trend for Longmont: Temperatures stay fairly stable over the period with no big swings. Lows can drop to around 0.3°C at night, with daytime highs up to 22.4°C.

Date
Apr 28
Apr 29
Apr 30
May 1
May 2
May 3
May 4
May 5
May 6
May 7
May 8
May 9
May 10
May 11
Longmont April 28, 2026: Patchy rain possible
Longmont April 29, 2026: Patchy rain possible
Longmont April 30, 2026: Moderate rain
Longmont May 1, 2026: Patchy rain possible
Longmont May 2, 2026: Sunny
Longmont May 3, 2026: Partly cloudy
Longmont May 4, 2026: Patchy rain possible
Longmont May 5, 2026: Patchy rain possible
Longmont May 6, 2026: Patchy rain possible
Longmont May 7, 2026: Patchy rain possible
Longmont May 8, 2026: Patchy rain possible
Longmont May 9, 2026: Patchy rain possible
Longmont May 10, 2026: Patchy rain possible
Longmont May 11, 2026: Moderate rain
Temperature (°F)
Chance of rain (%)
94
81
89
87
0
0
84
87
74
86
81
72
84
84
Precipitation
1.5 mm
0.3 mm
13.2 mm
4.2 mm
0.1 mm
0.1 mm
2.8 mm
0.5 mm
0.4 mm
2.6 mm
4.1 mm
0.2 mm
3.2 mm
5.6 mm
Wind max (mph)
9
9
11
11
7
11
10
10
10
8
9
13
13
15
Date Weather Min °F Max °F Sunrise Sunset Moonrise Moonset Moon phase
April 28, 2026 Longmont April 28, 2026: Patchy rain possible Patchy rain possible 36 °F 59 °F 06:04 19:53 17:15 04:26 Waxing Moon (87 %)
April 29, 2026 Longmont April 29, 2026: Patchy rain possible Patchy rain possible 33 °F 64 °F 06:02 19:54 18:17 04:47 Waxing Moon (93 %)
April 30, 2026 Longmont April 30, 2026: Moderate rain Moderate rain 36 °F 49 °F 06:01 19:55 19:21 05:10 Waxing Moon (97 %)
May 1, 2026 Longmont May 1, 2026: Patchy rain possible Patchy rain possible 40 °F 52 °F 06:00 19:56 20:25 05:35 Full Moon (99 %)
May 2, 2026 Longmont May 2, 2026: Sunny Sunny 34 °F 66 °F 05:59 19:57 21:28 06:03 Waning Moon (100 %)
May 3, 2026 Longmont May 3, 2026: Partly cloudy Partly cloudy 42 °F 72 °F 05:58 19:58 22:29 06:37 Waning Moon (98 %)
May 4, 2026 Longmont May 4, 2026: Patchy rain possible Patchy rain possible 48 °F 65 °F 05:56 19:59 23:26 07:19 Waning Moon (95 %)
May 5, 2026 Longmont May 5, 2026: Patchy rain possible Patchy rain possible 45 °F 63 °F 05:55 20:00 — 08:07 Waning Moon (90 %)
May 6, 2026 Longmont May 6, 2026: Patchy rain possible Patchy rain possible 40 °F 68 °F 05:54 20:01 00:15 09:03 Waning Moon (84 %)
May 7, 2026 Longmont May 7, 2026: Patchy rain possible Patchy rain possible 44 °F 58 °F 05:53 20:02 00:57 10:03 Waning Moon (77 %)
May 8, 2026 Longmont May 8, 2026: Patchy rain possible Patchy rain possible 38 °F 58 °F 05:52 20:03 01:33 11:07 Waning Moon (68 %)
May 9, 2026 Longmont May 9, 2026: Patchy rain possible Patchy rain possible 41 °F 69 °F 05:51 20:04 02:02 12:12 Last Quarter (59 %)
May 10, 2026 Longmont May 10, 2026: Patchy rain possible Patchy rain possible 42 °F 69 °F 05:50 20:05 02:28 13:18 Waning Crescent (49 %)
May 11, 2026 Longmont May 11, 2026: Moderate rain Moderate rain 45 °F 63 °F 05:49 20:06 02:52 14:24 Waning Crescent (39 %)
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