| NWS Forecast for: Fallon County Issued by: National Weather Service Billings, MT Last Update: 1238 AM MDT Thu Jul 23 2026 |  |
Today: Mostly sunny. Highs in the lower 90s. Southeast winds 5 to 10 mph. Tonight: Mostly clear. Lows in the lower 60s. South winds 5 to 15 mph. Friday: Sunny. Highs around 101. West winds 10 to 20 mph. Friday Night: Mostly clear. Lows in the mid 60s. Northwest winds 5 to 15 mph in the evening shifting to the south 5 to 10 mph overnight. Saturday: Sunny. Highs around 107. South winds 5 to 15 mph. Saturday Night: Mostly cloudy. Chance of showers and slight chance of thunderstorms early in the evening, then chance of showers late in the evening. Lows in the upper 60s. Chance of precipitation 30 percent. Sunday: Sunny. Highs around 102. Sunday Night: Partly cloudy. A 20 percent chance of showers and thunderstorms overnight. Lows in the mid 60s. Monday: Mostly sunny. Highs around 100. Monday Night: Mostly clear in the evening, then mostly cloudy with a 20 percent chance of showers overnight. Lows in the mid 60s. Tuesday: Mostly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. Tuesday Night: Partly cloudy. Slight chance of showers and thunderstorms in the evening, then slight chance of showers overnight. Lows in the mid 60s. Chance of precipitation 20 percent. Wednesday: Mostly sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs in the upper 90s. | |
| Zone Forecast: Fallon County | |
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