Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Sunday could bring areas of flooding to parts of the upper Midwest, central Great Lakes, southern New England and Virginia/North Carolina tidewater region. Read More >

Current conditions at

Buffalo - Johnson County Airport (KBYG)

Lat: 44.38122°NLon: 106.71947°WElev: 4925.0ft.

Clear

55°F

13°C

Humidity 66%
Wind Speed NW 9 MPH
Barometer 30.1 in (1019.3 mb)
Dewpoint 44°F (7°C)
Visibility 10.00 mi
Last update 18 Sep 04:00 AM MDT
Extended Forecast for

11 Miles WSW Buffalo WY

Flood Watch September 18, 12:00pm until September 20, 06:00pm
Click here for hazard details and duration
Flood Watch
  • Today

    Today: A 50 percent chance of showers and thunderstorms after noon.  Increasing clouds, with a high near 67. Calm wind becoming east northeast 5 to 7 mph in the morning.

    High: 67 °F

    Sunny then
    Chance
    T-storms

  • Tonight

    Tonight: Showers and thunderstorms before 4am, then a chance of showers and thunderstorms after 5am.  Patchy fog between 11pm and midnight. Low around 48. North northeast wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 48 °F

    Showers and
    Patchy Fog
    then Showers
    Likely

  • Saturday

    Saturday: Showers and thunderstorms before noon, then showers and possibly a thunderstorm, mainly after noon.  High near 56. Calm wind becoming east around 6 mph in the afternoon.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    High: 56 °F

    Showers

  • Saturday Night

    Saturday Night: Showers and possibly a thunderstorm.  Low around 44. North wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 44 °F

    Showers

  • Sunday

    Sunday: Showers, with thunderstorms also possible after 9am.  High near 51. Calm wind becoming north around 6 mph in the afternoon.  Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.

    High: 51 °F

    Showers

  • Sunday Night

    Sunday Night: Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight.  Mostly cloudy, with a low around 42. North wind around 5 mph becoming calm  in the evening.  Chance of precipitation is 60%.

    Low: 42 °F

    Showers
    Likely then
    Mostly Cloudy

  • Monday

    Monday: A 30 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 58. Calm wind becoming southeast 5 to 7 mph in the afternoon.

    High: 58 °F

    Mostly Sunny
    then Chance
    Showers

  • Monday Night

    Monday Night: Partly cloudy, with a low around 44.

    Low: 44 °F

    Partly Cloudy

  • Tuesday

    Tuesday: A 20 percent chance of showers and thunderstorms after noon.  Mostly sunny, with a high near 65.

    High: 65 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

Detailed Forecast

Today
A 50 percent chance of showers and thunderstorms after noon. Increasing clouds, with a high near 67. Calm wind becoming east northeast 5 to 7 mph in the morning.
Tonight
Showers and thunderstorms before 4am, then a chance of showers and thunderstorms after 5am. Patchy fog between 11pm and midnight. Low around 48. North northeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 90%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday
Showers and thunderstorms before noon, then showers and possibly a thunderstorm, mainly after noon. High near 56. Calm wind becoming east around 6 mph in the afternoon. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Saturday Night
Showers and possibly a thunderstorm. Low around 44. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 80%. New rainfall amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Sunday
Showers, with thunderstorms also possible after 9am. High near 51. Calm wind becoming north around 6 mph in the afternoon. Chance of precipitation is 100%. New rainfall amounts between a quarter and half of an inch possible.
Sunday Night
Showers likely and possibly a thunderstorm before 9pm, then showers likely between 9pm and midnight. Mostly cloudy, with a low around 42. North wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Monday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 58. Calm wind becoming southeast 5 to 7 mph in the afternoon.
Monday Night
Partly cloudy, with a low around 44.
Tuesday
A 20 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 65.
Tuesday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 46. Chance of precipitation is 20%.
Wednesday
A chance of showers and thunderstorms. Mostly sunny, with a high near 65.
Wednesday Night
Mostly clear, with a low around 46.
Thursday
Sunny, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles WSW Buffalo WY
 44.29°N 106.93°W (Elev. 7592 ft)
3:17 am MDT Sep 18, 2026
4am MDT Sep 18, 2026-6pm MDT Sep 24, 2026
 
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Additional Resources

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