89.8 °F
Feels like 79.2 °F
Min 51 °F / Max 91 °F
Sunny
Today's Summary
If you head out in Longmont today, you'll see a sunny sky. The thermometer currently shows 32.1°C. With wind from the south-east, it feels noticeably colder, around 26.2°C. Stay in the shade, wear light clothing and drink lots of water. During the day temperatures will range between 10.4°C and 32.5°C.
Hourly forecast – Longmont, today
Sep 10, 18:00
68 °F
Overcast
Sep 10, 19:00
68 °F
Overcast
Sep 10, 20:00
63 °F
Overcast
Sep 10, 21:00
62 °F
Overcast
Sep 10, 22:00
64 °F
Cloudy
Sep 10, 23:00
61 °F
Cloudy
Sep 11, 00:00
58 °F
Cloudy
Sep 11, 01:00
56 °F
Cloudy
Sep 11, 02:00
55 °F
Clear
Sep 11, 03:00
54 °F
Clear
Sep 11, 04:00
54 °F
Clear
Sep 11, 05:00
55 °F
Sunny
Sep 11, 06:00
67 °F
Partly cloudy
Sep 11, 07:00
73 °F
Overcast
Sep 11, 08:00
79 °F
Overcast
Sep 11, 09:00
83 °F
Overcast
Sep 11, 10:00
86 °F
Overcast
Sep 11, 11:00
90 °F
Sunny
Sep 11, 12:00
92 °F
Overcast
Sep 11, 13:00
91 °F
Overcast
Sep 11, 14:00
92 °F
Overcast
Sep 11, 15:00
90 °F
Patchy rain possible
Sep 11, 16:00
86 °F
Sunny
Sep 11, 17:00
73 °F
Patchy rain possible
Time
18
19
20
21
22
23
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
16
17
Temperature (°F)
Chance of rain (%)
9
10
16
15
6
4
6
7
1
1
1
1
2
8
9
9
9
1
9
9
9
9
1
36
Precipitation
Wind (mph)
SE
8
8
S
6
6
SSW
2
2
WSW
1
1
NW
5
5
WNW
6
6
WNW
4
4
WNW
2
2
W
2
2
WNW
2
2
SW
0
0
SSE
1
1
E
0
0
SSW
2
2
S
2
2
SE
3
3
E
5
5
E
6
6
E
5
5
NW
3
3
W
17
17
SSE
11
11
SSE
8
8
SE
6
6
Pressure (hPa)
1009
1010
1010
1010
1010
1010
1010
1010
1010
1010
1010
1011
1011
1010
1009
1008
1007
1005
1004
1003
1003
1003
1004
1005
Humidity (%)
Cloud cover (%)
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 9.3°C at night, with daytime highs up to 34.9°C.
Date
Sep 10
Sep 11
Sep 12
Sep 13
Sep 14
Sep 15
Sep 16
Sep 17
Sep 18
Sep 19
Sep 20
Sep 21
Sep 22
Sep 23
Temperature (°F)
Chance of rain (%)
1
36
57
17
57
86
72
17
4
1
57
2
1
1
Precipitation
Wind max (mph)
11
17
15
15
16
11
8
10
11
12
7
13
12
10
| Date | Weather | Min °F | Max °F | Sunrise | Sunset | Moonrise | Moonset | Moon phase |
|---|---|---|---|---|---|---|---|---|
| September 10, 2026 |
Sunny
|
51 °F | 91 °F | 06:36 | 19:18 | 05:45 | 18:57 | New Moon (0 %) |
| September 11, 2026 |
Sunny
|
54 °F | 92 °F | 06:37 | 19:16 | 07:02 | 19:22 | New Moon (0 %) |
| September 12, 2026 |
Patchy rain possible
|
53 °F | 82 °F | 06:38 | 19:14 | 08:17 | 19:47 | New Moon (3 %) |
| September 13, 2026 |
Sunny
|
54 °F | 95 °F | 06:39 | 19:13 | 09:31 | 20:14 | Waxing Crescent (8 %) |
| September 14, 2026 |
Sunny
|
49 °F | 87 °F | 06:40 | 19:11 | 10:44 | 20:44 | Waxing Crescent (14 %) |
| September 15, 2026 |
Patchy rain possible
|
55 °F | 74 °F | 06:41 | 19:09 | 11:55 | 21:19 | Waxing Crescent (23 %) |
| September 16, 2026 |
Patchy rain possible
|
54 °F | 69 °F | 06:42 | 19:08 | 13:03 | 22:01 | First Quarter (32 %) |
| September 17, 2026 |
Sunny
|
52 °F | 80 °F | 06:43 | 19:06 | 14:05 | 22:50 | First Quarter (42 %) |
| September 18, 2026 |
Sunny
|
60 °F | 82 °F | 06:44 | 19:04 | 14:59 | 23:45 | First Quarter (53 %) |
| September 19, 2026 |
Sunny
|
55 °F | 85 °F | 06:45 | 19:03 | 15:44 | Does not set today | First Quarter (63 %) |
| September 20, 2026 |
Overcast
|
61 °F | 81 °F | 06:46 | 19:01 | 16:21 | 00:44 | Waxing Moon (73 %) |
| September 21, 2026 |
Sunny
|
58 °F | 88 °F | 06:47 | 18:59 | 16:51 | 01:46 | Waxing Moon (82 %) |
| September 22, 2026 |
Sunny
|
50 °F | 80 °F | 06:48 | 18:58 | 17:17 | 02:49 | Waxing Moon (89 %) |
| September 23, 2026 |
Sunny
|
51 °F | 85 °F | 06:49 | 18:56 | 17:40 | 03:50 | Waxing Moon (95 %) |