Casper, WY Weather Forecast
Right now it is 45°F and cloudy in Casper (as of Tue, 10:20 AM MST). Today: high near 50°F. Tomorrow: partly sunny, high near 52°F. Official NWS forecast and alerts, refreshed every 30 minutes.
Current conditions
Measured at Casper, Natrona County International Airport (8 mi from the city center).
Weather tomorrow in Casper
Partly Sunny52°FPartly sunny, with a high near 52. Northwest wind around 5 mph.
Mostly Cloudy26°FMostly cloudy, with a low around 26. West northwest wind 2 to 6 mph.
Weather alerts
No active National Weather Service watches, warnings or advisories for Casper right now.
7-day forecast
Sunny50°F / 25°FSunny. High near 50, with temperatures falling to around 45 in the afternoon. Southwest wind 7 to 13 mph. Tonight: Mostly clear, with a low around 25. West southwest wind around 7 mph.
Partly Sunny52°F / 26°FPartly sunny, with a high near 52. Northwest wind around 5 mph. Wednesday Night: Mostly cloudy, with a low around 26. West northwest wind 2 to 6 mph.
Mostly Sunny56°F / 30°FMostly sunny, with a high near 56. Southwest wind 7 to 13 mph, with gusts as high as 22 mph. Thursday Night: Partly cloudy, with a low around 30. Southwest wind around 8 mph.
Sunny53°F / 30°FSunny, with a high near 53. Southwest wind 7 to 12 mph. Friday Night: Mostly clear, with a low around 30.
Sunny56°F / 32°FSunny, with a high near 56. Saturday Night: Mostly clear, with a low around 32.
Sunny63°F / 38°FSunny, with a high near 63. Sunday Night: Mostly clear, with a low around 38.
Mostly Sunny62°F / 37°FMostly sunny, with a high near 62. Monday Night: Partly cloudy, with a low around 37.
Forecast issued by NWS forecast office RIW · updated Nov 3, 10:18 AM MST. Daytime highs and overnight lows are on the right.
Hourly forecast, radar & more on weather.gov
Nearby cities
Casper population: 58,771 (U.S. Census Bureau, July 1, 2025 estimate). More Wyoming cities · All US cities
Source: National Weather Service / NOAA (public domain), fetched live. Tachlis is not affiliated with the NWS.
Questions & answers
What is the weather tomorrow in Casper?
Wednesday, November 4: Partly Sunny, high near 52°F; night: mostly cloudy, low around 26°F.
Where does the Casper forecast come from?
From the National Weather Service forecast office RIW, which writes the official forecast for Casper's 2.5 km grid square. Current conditions come from the nearest NWS/FAA weather station.
How often is the Casper weather updated?
This page fetches fresh data from the National Weather Service at most every 30 minutes, and checks for new watches and warnings every 5 minutes.
What time zone are the times shown in?
Local time for Casper (America/Denver).
Why can the current temperature differ from the forecast?
The current reading is a real measurement at a weather station, often at an airport, while the forecast describes the whole grid square around the city. Temperatures can differ by a few degrees across a city.