Widespread Showers in the Eastern US; Severe Thunderstorms in the Plains; Heatwave in the Desert Southwest

Widespread showers and thunderstorms across much of the central and eastern U.S. will produce areas of excessive rainfall, especially in the southern Mid-Atlantic states. Scattered severe thunderstorms are expected from Montana into portions of the central/southern Plains this weekend. A heatwave will build in the Desert Southwest, in parts of Arizona, southeastern California, and southern Nevada. Read More >

Current conditions at

Big Timber Airport (K6S0)

Lat: 45.80647° N Lon: 109.97826° W Elev: 4494.0 ft.

Clear

50°F

10°C

Humidity 100%
Wind Speed W 6 MPH
Barometer 29.99 in (1015.58 mb)
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Wind Chill48°F (9°C)
Last update 14 Jun 04:55 AM MDT
Detailed forecast for

Northern Sweet Grass

Today
Mostly sunny. Patchy fog early in the morning. Slight chance of showers and thunderstorms early in the afternoon. Chance of showers and thunderstorms late in the afternoon. Some thunderstorms may be severe in the afternoon. Highs in the lower 80s. Southwest winds 5 to 10 mph in the morning shifting to the east 5 to 15 mph in the afternoon. Chance of precipitation 30 percent.
Tonight
Partly cloudy. Chance of showers and thunderstorms early in the evening, then chance of rain showers and slight chance of thunderstorms late in the evening. Some thunderstorms may be severe early in the evening. Some thunderstorms may be severe late in the evening. Lows in the mid 50s. North winds 5 to 10 mph. Chance of precipitation 40 percent.
Sunday
Partly sunny. A 50 percent chance of showers and thunderstorms in the afternoon. Some thunderstorms may be severe in the afternoon. Highs around 80. West winds 5 to 10 mph in the morning shifting to the east 5 to 15 mph in the afternoon.
Sunday Night
Rain showers likely and chance of thunderstorms in the evening, then slight chance of rain showers overnight. Some thunderstorms may be severe early in the evening. Some thunderstorms may be severe late in the evening. Lows in the mid 50s. North winds 5 to 10 mph. Chance of precipitation 60 percent.
Monday
Mostly sunny with slight chance of rain showers in the morning, then rain showers likely and chance of thunderstorms in the afternoon. Highs in the mid 70s. Northwest winds 5 to 10 mph in the morning shifting to the east 5 to 15 mph in the afternoon. Chance of precipitation 60 percent.
Monday Night
Chance of thunderstorms early in the evening. Rain showers likely in the evening, then chance of rain showers overnight. Lows around 50. Chance of precipitation 60 percent.
Tuesday
Chance of rain showers and slight chance of thunderstorms in the morning, then rain showers likely and chance of thunderstorms in the afternoon. Highs in the lower 70s. Chance of precipitation 60 percent.
Tuesday Night
Partly cloudy. A 20 percent chance of showers and thunderstorms in the evening. Lows in the upper 40s.
Wednesday
Sunny. Highs around 80.
Wednesday Night
Mostly clear. Lows in the lower 50s.
Juneteenth
Sunny. Highs in the lower 80s.
Thursday Night
Mostly clear. A 20 percent chance of showers and thunderstorms in the evening. Lows in the lower 50s.
Friday
Sunny. A 20 percent chance of showers and thunderstorms in the afternoon. Highs in the lower 80s.



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512 AM MDT Sat Jun 14 2025
 
 

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