National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Heat and Heavy Rainfall into the Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend. Heat Advisories remain in effect. Heavy to excessive rainfall occurring at times through the weekend could bring areas of flooding to parts of the northern Rockies, upper Midwest, central Great Lakes, and southern New England. Read More >

Current conditions at

CW1334 Chester (C1334)

Lat: 48.51253°NLon: 110.96415°WElev: 3133.33ft.

NA

60°F

16°C

Humidity 60%
Wind Speed ENE 2 MPH
Barometer 30.19 in (1022.35 mb)
Dewpoint 46°F (8°C)
Visibility NA
Last update 19 Sep 08:16 PM MDT
Extended Forecast for

Chester MT

  • Tonight

    Tonight: Partly cloudy, with a low around 44. Southeast wind around 6 mph becoming calm after midnight.

    Low: 44 °F

    Partly Cloudy

  • Sunday

    Sunday: Patchy fog before 9am. Otherwise, sunny, with a high near 71. Calm wind becoming south southeast 5 to 8 mph in the morning.

    High: 71 °F

    Patchy Fog
    then Sunny

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 46. Southeast wind 3 to 7 mph.

    Low: 46 °F

    Partly Cloudy

  • Monday

    Monday: Cloudy through mid morning, then gradual clearing, with a high near 77. Southeast wind 5 to 9 mph.

    High: 77 °F

    Becoming
    Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 47. South southeast wind 5 to 7 mph becoming calm after midnight.

    Low: 47 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 78. Calm wind becoming southwest around 5 mph in the afternoon.

    High: 78 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 50. Light and variable wind.

    Low: 50 °F

    Mostly Clear

  • Wednesday

    Wednesday: Mostly sunny, with a high near 78. Calm wind becoming west southwest around 6 mph in the afternoon.

    High: 78 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49.

    Low: 49 °F

    Partly Cloudy

Detailed Forecast

Tonight
Partly cloudy, with a low around 44. Southeast wind around 6 mph becoming calm after midnight.
Sunday
Patchy fog before 9am. Otherwise, sunny, with a high near 71. Calm wind becoming south southeast 5 to 8 mph in the morning.
Sunday Night
Partly cloudy, with a low around 46. Southeast wind 3 to 7 mph.
Monday
Cloudy through mid morning, then gradual clearing, with a high near 77. Southeast wind 5 to 9 mph.
Monday Night
Mostly clear, with a low around 47. South southeast wind 5 to 7 mph becoming calm after midnight.
Tuesday
Sunny, with a high near 78. Calm wind becoming southwest around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 50. Light and variable wind.
Wednesday
Mostly sunny, with a high near 78. Calm wind becoming west southwest around 6 mph in the afternoon.
Wednesday Night
Partly cloudy, with a low around 49.
Thursday
Mostly sunny, with a high near 75.
Thursday Night
Partly cloudy, with a low around 48.
Friday
Mostly sunny, with a high near 72.
Friday Night
A slight chance of rain. Mostly cloudy, with a low around 45.
Saturday
A slight chance of rain. Partly sunny, with a high near 62.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Chester MT
 48.53°N 110.99°W (Elev. 3192 ft)
Last Update:
8:41 pm MDT Sep 19, 2026
Forecast Valid:
8pm MDT Sep 19, 2026-6pm MDT Sep 26, 2026
 
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