Weather WorldGrass Range School, MT 7-Day Night Weather Forecast
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Grass Range School, MT Weather Forecast
Grass Range School, MT Weather Forecast Date: 336 PM MDT Tue Sep 29 2026
The area/counties/county of: Fergus County Below 4500ft, including the cities of: Hilger and Lewistown.or toggle through each period.
Tonight... Mostly cloudy. Lows in the mid 50s. West winds 5 to 15 mph with gusts to around 35 mph.
Wednesday... Partly sunny. Highs in the mid 60s. Northwest winds 10 to 20 mph.
Wednesday Night... Colder. Mostly cloudy. Lows in the lower 40s. North winds up to 10 mph with gusts to around 25 mph shifting to the east after midnight.
Thursday... Cloudy with a 20% chance of rain in the morning, then partly sunny in the afternoon. Highs in the lower 60s. Southeast winds 5 to 15 mph.
Thursday Night... Partly cloudy. Lows around 40. Southeast winds 5 to 10 mph.
Friday... Mostly sunny. Highs in the upper 60s.
Friday Night... Partly cloudy. A 20% chance of rain in the evening. Lows in the lower 40s.
Saturday... Mostly clear. Highs in the upper 60s. Lows in the lower 40s.
Sunday... Mostly clear. Highs in the upper 60s. Lows in the lower 40s.
Sunday Night... Partly cloudy. Lows in the mid 40s. Highs in the upper 70s.
Monday... Partly cloudy. Lows in the mid 40s. Highs in the upper 70s.
Monday Night... Partly cloudy. Lows in the lower 50s.
POP = Probability of Precipitation
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