| NWS Forecast for: Custer County Issued by: National Weather Service Billings, MT Last Update: 1235 PM MDT Sun Oct 18 2026 | |
| Rest Of Today: Mostly sunny. Cooler. Highs in the mid 60s. Northeast winds 5 to 15 mph. Tonight: Partly cloudy. Lows in the lower 40s. East winds 5 to 15 mph. Monday: Sunny. Highs in the upper 60s. Southeast winds 10 to 20 mph. Monday Night: Mostly clear. Lows in the upper 30s. Southeast winds 5 to 15 mph. Tuesday: Sunny. Highs in the upper 60s. Light and variable winds in the morning becoming northwest 5 to 10 mph in the afternoon. Tuesday Night: Mostly clear. Lows in the upper 30s. Wednesday: Sunny. Highs in the mid 60s. Wednesday Night: Mostly clear. Lows in the mid 40s. Thursday: Sunny. Highs in the mid 70s. Thursday Night: Mostly cloudy. Lows around 50. Friday: Partly sunny with a 40 percent chance of rain showers. Cooler. Highs in the mid 60s. Friday Night: Rain showers likely in the evening, then chance of rain showers overnight. Colder. Lows in the upper 30s. Chance of precipitation 60 percent. Saturday: Decreasing clouds. Cooler. Highs in the lower 50s. Saturday Night: Partly cloudy. Lows in the mid 30s. Sunday: Mostly sunny. Highs in the mid 50s. | |
| Zone Forecast: Custer County | |
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