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Lewistown, MT
 75° 
Last Updated on Sep 22 2018, 3:54 pm MDT
Current ConditionsFair
Relative Humidity24%
WindNorth at 11.5 MPH
(10 KT)
Pressure29.88 mb
Dewpoint36.0 F (2.2 C)
Visibility10.00 miles

7-Day Forecast

Tonight
Mostly Cloudy then Chance Rain
Low: 46°
A 30% chance of rain, mainly after 5am.
Mostly cloudy with a low around 46.
North northeast wind 5 to 8 mph becoming
south southeast after midnight.


Sunday
Showers Likely
High: 60°
Rain likely, mainly
between 11am and noon,
then showers likely and possibly a thunderstorm after noon.
Cloudy with a high near 60.
Light and variable wind becoming
west northwest 5 to 9 mph in the afternoon.
Chance of precipitation is 70%.
New rainfall amounts
between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.


Sunday Night
Partly Cloudy
Low: 38°
Partly cloudy with a low around 38.
West southwest wind 6 to 8 mph.


Monday
Chance Rain
High: 53°
A chance of rain with thunderstorms also possible after 3pm.
Mostly cloudy with a high near 53.
West northwest wind 6 to 14 mph
with gusts as high as 22 mph.
Chance of precipitation is 40%.


Monday Night
Slight Chance Rain
Low: 36°
A 20% chance of rain.
Mostly cloudy with a low around 36.
West wind 7 to 11 mph.


Tuesday
Slight Chance Rain then Mostly Sunny
High: 56°
A 20% chance of rain before noon.
Mostly sunny with a high near 56.


Tuesday Night
Mostly Clear
Low: 37°
Mostly clear with a low around 37.


Wednesday
Partly Sunny
High: 58°
Partly sunny with a high near 58.


Wednesday Night
Chance Rain
Low: 35°
A chance of rain, mainly after midnight.
Mostly cloudy with a low around 35.


Thursday
Partly Sunny
High: 54°
Partly sunny with a high near 54.


Thursday Night
Mostly Cloudy then Slight Chance Rain
Low: 37°
A slight chance of rain.
Mostly cloudy with a low around 37.


Friday
Chance Rain
High: 57°
A chance of rain.
Partly sunny with a high near 57.


Friday Night
Chance Rain then Chance Rain/Snow
Low: 33°
A chance of rain and snow.
Mostly cloudy with a low around 33.


Saturday
Chance Rain/Snow then Chance Rain
High: 49°
A chance of rain and snow.
Mostly cloudy with a high near 49.


Source: National Weather Service








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