Today's Summary
If you head out in Casper today, you'll see a sunny sky. The thermometer currently shows 27.1°C. With wind from the west-south-west, it feels noticeably colder, around 17.9°C. Wear light, breathable clothes and drink plenty of fluids. During the day temperatures will range between 11.5°C and 27.1°C.
Hourly forecast – Casper, today
Sep 10, 16:00
26 °C
Overcast
Sep 10, 17:00
23 °C
Overcast
Sep 10, 18:00
21 °C
Cloudy
Sep 10, 19:00
19 °C
Overcast
Sep 10, 20:00
18 °C
Overcast
Sep 10, 21:00
20 °C
Overcast
Sep 10, 22:00
18 °C
Clear
Sep 10, 23:00
16 °C
Clear
Sep 11, 00:00
16 °C
Clear
Sep 11, 01:00
16 °C
Clear
Sep 11, 02:00
16 °C
Cloudy
Sep 11, 03:00
16 °C
Cloudy
Sep 11, 04:00
15 °C
Partly cloudy
Sep 11, 05:00
15 °C
Partly cloudy
Sep 11, 06:00
18 °C
Overcast
Sep 11, 07:00
20 °C
Overcast
Sep 11, 08:00
21 °C
Sunny
Sep 11, 09:00
23 °C
Partly cloudy
Sep 11, 10:00
24 °C
Cloudy
Sep 11, 11:00
25 °C
Overcast
Sep 11, 12:00
25 °C
Overcast
Sep 11, 13:00
24 °C
Overcast
Sep 11, 14:00
24 °C
Cloudy
Sep 11, 15:00
25 °C
Sunny
Time
16
17
18
19
20
21
22
23
00
01
02
03
04
05
06
07
08
09
10
11
12
13
14
15
Temperature (°C)
Chance of rain (%)
9
9
7
9
9
9
1
0
1
1
7
5
2
2
9
8
1
3
6
8
9
9
7
1
Precipitation
Wind (mph)
WSW
21
21
SW
17
17
SSW
12
12
SSW
9
9
SSW
9
9
WSW
15
15
SW
11
11
SW
10
10
SSW
10
10
SW
11
11
SW
12
12
SW
10
10
SSW
9
9
SSW
9
9
SW
10
10
WSW
15
15
WSW
22
22
W
27
27
WSW
26
26
W
22
22
W
27
27
W
27
27
WNW
27
27
W
19
19
Pressure (hPa)
1007
1008
1008
1010
1010
1009
1010
1010
1010
1009
1009
1010
1010
1010
1010
1009
1009
1008
1008
1007
1006
1006
1006
1005
Humidity (%)
Cloud cover (%)
14-day weather forecast – Casper
14-day trend for Casper: The second week looks noticeably warmer and more pleasant. Lows can drop to around 3.3°C at night, with daytime highs up to 29.1°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 (°C)
Chance of rain (%)
1
36
39
36
1
9
36
36
1
1
17
1
2
0
Precipitation
Wind max (mph)
21
27
10
28
23
17
9
10
8
13
14
9
11
17
| Date | Weather | Min °C | Max °C | Sunrise | Sunset | Moonrise | Moonset | Moon phase |
|---|---|---|---|---|---|---|---|---|
| September 10, 2026 |
|
12 °C | 27 °C | 06:39 | 19:24 | 05:47 | 19:03 | New Moon (0 %) |
| September 11, 2026 |
|
13 °C | 25 °C | 06:40 | 19:23 | 07:06 | 19:26 | New Moon (0 %) |
| September 12, 2026 |
|
7 °C | 23 °C | 06:41 | 19:21 | 08:24 | 19:49 | New Moon (3 %) |
| September 13, 2026 |
|
13 °C | 29 °C | 06:42 | 19:19 | 09:41 | 20:13 | Waxing Crescent (8 %) |
| September 14, 2026 |
|
3 °C | 23 °C | 06:44 | 19:17 | 10:56 | 20:41 | Waxing Crescent (14 %) |
| September 15, 2026 |
|
4 °C | 17 °C | 06:45 | 19:15 | 12:10 | 21:15 | Waxing Crescent (23 %) |
| September 16, 2026 |
|
8 °C | 23 °C | 06:46 | 19:14 | 13:20 | 21:55 | First Quarter (32 %) |
| September 17, 2026 |
|
11 °C | 26 °C | 06:47 | 19:12 | 14:22 | 22:42 | First Quarter (42 %) |
| September 18, 2026 |
|
13 °C | 25 °C | 06:48 | 19:10 | 15:16 | 23:38 | First Quarter (53 %) |
| September 19, 2026 |
|
14 °C | 28 °C | 06:49 | 19:08 | 16:00 | Does not set today | First Quarter (63 %) |
| September 20, 2026 |
|
15 °C | 26 °C | 06:50 | 19:06 | 16:36 | 00:39 | Waxing Moon (73 %) |
| September 21, 2026 |
|
13 °C | 22 °C | 06:51 | 19:05 | 17:04 | 01:42 | Waxing Moon (82 %) |
| September 22, 2026 |
|
9 °C | 21 °C | 06:52 | 19:03 | 17:28 | 02:47 | Waxing Moon (89 %) |
| September 23, 2026 |
|
12 °C | 26 °C | 06:53 | 19:01 | 17:49 | 03:50 | Waxing Moon (95 %) |