7-Day Zone Forecast for Custer County (Text-Only)
NWS Forecast for: Custer County
Issued by: National Weather Service Billings, MT
Last Update: 333 AM MST Sat Mar 7 2026
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Today: Increasing clouds. Warmer. Highs in the upper 50s. West winds 15 to 25 mph.

Tonight: Partly cloudy. Warmer. Lows in the lower 40s. West winds 15 to 25 mph.

Sunday: Mostly sunny. Highs in the upper 60s. West winds 15 to 25 mph. Gusts up to 40 mph in the afternoon.

Sunday Night: Partly cloudy. Chance of rain and snow showers overnight. Chance of snow showers after 3 am. Colder. Lows in the upper 20s. Northwest winds 15 to 25 mph in the evening becoming north 5 to 15 mph overnight. Chance of precipitation 30 percent.

Monday: Mostly cloudy. Chance of snow showers in the morning and early afternoon, then chance of rain and snow showers late in the afternoon. Much colder. Highs in the lower 40s. Northeast winds 5 to 15 mph. Chance of precipitation 40 percent.

Monday Night: Cloudy. Chance of rain and snow showers early in the evening, then chance of snow showers in the late evening and overnight. Lows in the mid 20s. Chance of precipitation 40 percent.

Tuesday: Mostly cloudy. Chance of snow showers in the morning, then slight chance of snow showers in the afternoon. Highs in the lower 40s. Chance of precipitation 30 percent.

Tuesday Night: Decreasing clouds. Lows in the lower 20s.

Wednesday: Mostly sunny. Highs in the mid 40s.

Wednesday Night: Mostly cloudy. A 20 percent chance of snow showers overnight. Lows in the lower 30s.

Thursday: Cloudy. Chance of snow showers early in the morning, then chance of rain showers in the late morning and afternoon. Warmer. Highs in the upper 50s. Chance of precipitation 30 percent.

Thursday Night: Cloudy. Chance of rain showers in the evening. Chance of snow showers in the late evening and overnight. Lows in the mid 20s. Chance of precipitation 40 percent.

Friday: Cloudy with a 40 percent chance of snow showers. Colder. Highs in the lower 40s.







Zone Forecast: Custer County

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