Casper weather live forecast

Today's maximum temperature in Casper is expected to be 26°C. Select a day from the live weather forecast for Casper, Wyoming, USA for more weather parameters.

Wednesday
16th Sep
26

14

7

7
Thursday
17th Sep
19

14

2

5
Friday
18th Sep
26

14

8

7
Saturday
19th Sep
22

12

8

6
Sunday
20th Sep
19

11

6

6

5-day weather forecast updated at 04:00 on Wednesday 16th September 2026 GMT

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The 5-day weather forecast for Wyoming (Casper) is provided by the Swiss meteorological agency, meteoblue. Find out more about our data sources.

Casper weather forecast by day

Below are the detailed weather forecasts for Casper for the next 5 days.

Casper weather for Wednesday 16th September 2026

Expect broken clouds in Casper, Wyoming with a maximum temperature of 26°C, maximum UV of 7 (High) and 7 hours of bright sunshine. There are 0 mm of rainfall expected and a moderate breeze of 20 kph from the south-west.

26
°C maximum temperature
14
°C minimum temperature
broken clouds
7
hours of sunshine
7
UV index (High)
0
mm of rainfall expected
0
no heat & humidity
20
kph wind from SW

Casper weather for Thursday 17th September 2026

Expect mostly cloudy with rain in Casper, Wyoming with a maximum temperature of 19°C, maximum UV of 5 (Moderate) and 2 hours of bright sunshine. There are 5-10 mm of rainfall expected with 48% chance of some rain and a light breeze of 11 kph from the south-east.

19
°C maximum temperature
14
°C minimum temperature
mostly cloudy with rain
2
hours of sunshine
5
UV index (Moderate)
48
% chance of some rain
<10
mm of rainfall expected
0
no heat & humidity
11
kph wind from SE

Casper weather for Friday 18th September 2026

Expect isolated thunderstorms in Casper, Wyoming with a maximum temperature of 26°C, maximum UV of 7 (High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 43% chance of some rain and a moderate breeze of 24 kph from the south-west.

26
°C maximum temperature
14
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
7
UV index (High)
43
% chance of some rain
<2
mm of rainfall expected
26
°C wind chill
24
kph wind from SW

Casper weather for Saturday 19th September 2026

Expect isolated thunderstorms in Casper, Wyoming with a maximum temperature of 22°C, maximum UV of 6 (High) and 8 hours of bright sunshine. There are 0-2 mm of rainfall expected with 54% chance of some rain and a gentle breeze of 17 kph from the west.

22
°C maximum temperature
12
°C minimum temperature
isolated thunderstorms
8
hours of sunshine
6
UV index (High)
54
% chance of some rain
<2
mm of rainfall expected
0
no heat & humidity
17
kph wind from W

Casper weather for Sunday 20th September 2026

Expect isolated thunderstorms in Casper, Wyoming with a maximum temperature of 19°C, maximum UV of 6 (High) and 6 hours of bright sunshine. There are 0-2 mm of rainfall expected with 22% chance of some rain and a gentle breeze of 15 kph from the north-west.