Casper weather
At 9:45 PM local time it was clear and 11°C (51°F). Mostly light, on-and-off rain; heavier around 1 PM (1.9 mm total). Best months for weather: May–Sep. Casper sits 1558 m (5,112 ft) above sea level, which keeps it cooler than the coast. Below: today's sky, the hour-by-hour rain chance and the 16-day forecast for Casper, Wyoming, United States.
Current conditions
- Clouds
- 7%
- Chance of rain
- 0%
- Rain
- 0.0 mm/h
Hourly Forecast
Mostly light, on-and-off rain; heavier around 1 PM (1.9 mm total)
Daily Forecast
Best Time to Visit
Peak season May–SepOff season Nov–Mar
About Casper weather
Is it raining in Casper right now?
No. It’s clear and 11° right now. Mostly light, on-and-off rain; heavier around 1 PM (1.9 mm total).
What’s the weather like in Casper this week?
Over the next 7 days, expect highs of 9–18° and lows of 3–5°. Rain is likely on 2 of 7 days (Sunday, Monday). The driest day looks like Saturday.
Has it been raining in Casper lately?
Barely. The past 7 days were mostly dry, with 0.9 mm of rain in total.
What should I pack for Casper?
For the coming week, bring an umbrella or rain jacket and a warm winter coat.
Casper weather by month
When is the best time to visit Casper?
Based on weather alone, the best time to visit Casper is May–Sep, according to NASA's 2001–2025 climate averages. Nov–Mar tends to be the least pleasant. Average highs run from 1°C (34°F) in December to 32°C (89°F) in July.
What is the rainiest month in Casper?
May is the wettest month, with about 71 mm (2.8 in) of rain on average. January is the driest, with about 18 mm (0.7 in).
What is the hottest month in Casper?
July is the warmest, with average highs of 32°C (89°F) and lows of 16°C (60°F). December is the coolest, with highs of 1°C (34°F) and lows of -9°C (16°F).
Does Casper have a rainy season?
Not a strong one. No month averages more than 150 mm of rain; the wettest is May at about 71 mm (2.8 in).
Sources: 2001–2025 monthly averages from NASA POWER (MERRA-2 reanalysis), forecast and current conditions from Open-Meteo. Page updated . How we rate months