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Grass Range, MT Weather Forecast
Grass Range, MT Weather Forecast Date: 416 AM MST Tue Nov 03 2026
The area/counties/county of: Fergus County Below 4500ft, including the cities of: Hilger and Lewistown.or toggle through each period.
Today... Sunny. Highs in the lower 50s. Southeast winds up to 5 mph with gusts to around 25 mph.
Tonight... Partly cloudy. Patchy fog after midnight. Lows in the lower 30s. Southwest winds up to 5 mph.
Wednesday... Mostly sunny. Patchy fog in the morning. Highs in the upper 40s. West winds up to 10 mph.
Wednesday Night... Mostly clear. Patchy fog. Lows around 30. Southwest winds up to 5 mph.
Thursday... Mostly sunny. Patchy fog in the morning. Highs in the mid 50s. Southwest winds up to 5 mph shifting to the west in the afternoon.
Thursday Night... Partly cloudy. Lows in the mid 30s.
Friday... Sunny. Highs in the mid 50s.
Friday Night... Partly cloudy. Lows in the upper 30s.
Saturday... Mostly clear. Highs in the lower 50s. Lows in the mid 30s.
Saturday Night... Mostly clear. Highs in the lower 50s. Lows in the mid 30s.
Sunday... Partly cloudy. Highs in the lower 60s. Lows in the upper 30s.
Sunday Night... Partly cloudy. Highs in the lower 60s. Lows in the upper 30s.
POP = Probability of Precipitation
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