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 >

Hazardous Weather Conditions

Current conditions at

TOWER FALLS RANGER STATION AT YELLOWSTONE NP (TFAW4)

Lat: 44.916944°NLon: 110.420556°WElev: 1913.8ft.

NA

61°F

16°C

Humidity 56%
Wind Speed E 2 MPH
Barometer NA
Dewpoint 45°F (7°C)
Visibility NA
Last update 18 Sep 12:15 PM MDT
Extended Forecast for

Canyon WY

  • This Afternoon

    This Afternoon: Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. High near 62. South wind 3 to 6 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 62 °F

    Showers

  • Tonight

    Tonight: Showers and thunderstorms before 3am, then showers likely. Patchy fog after 8pm. Low around 37. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.

    Low: 37 °F

    Showers and
    Patchy Fog

  • Saturday

    Saturday: Showers and thunderstorms likely before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 51. Calm wind becoming west around 6 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.

    High: 51 °F

    Showers
    Likely and
    Patchy Fog

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely before 3am, then a slight chance of showers between 3am and 4am. Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 33. North northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.

    Low: 33 °F

    Showers
    Likely and
    Patchy Fog

  • Sunday

    Sunday: A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 55. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 30%.

    High: 55 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: Partly cloudy, with a low around 32. Light and variable wind.

    Low: 32 °F

    Partly Cloudy

  • Monday

    Monday: Mostly sunny, with a high near 62. Calm wind becoming west southwest around 5 mph in the afternoon.

    High: 62 °F

    Mostly Sunny

  • Monday Night

    Monday Night: Mostly clear, with a low around 34.

    Low: 34 °F

    Mostly Clear

  • Tuesday

    Tuesday: Mostly sunny, with a high near 64.

    High: 64 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Showers and thunderstorms before 2pm, then showers likely and possibly a thunderstorm between 2pm and 3pm, then a chance of showers and thunderstorms after 3pm. High near 62. South wind 3 to 6 mph. Chance of precipitation is 80%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Tonight
Showers and thunderstorms before 3am, then showers likely. Patchy fog after 8pm. Low around 37. Calm wind. Chance of precipitation is 80%. New precipitation amounts between a quarter and half of an inch possible.
Saturday
Showers and thunderstorms likely before 3pm, then showers likely and possibly a thunderstorm between 3pm and 5pm, then a chance of showers and thunderstorms after 5pm. Patchy fog before noon. Otherwise, mostly cloudy, with a high near 51. Calm wind becoming west around 6 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.
Saturday Night
Showers and thunderstorms likely before 3am, then a slight chance of showers between 3am and 4am. Patchy fog after 8pm. Otherwise, mostly cloudy, with a low around 33. North northwest wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%.
Sunday
A slight chance of showers, then a chance of showers and thunderstorms after noon. Mostly cloudy, with a high near 55. Calm wind becoming west northwest around 5 mph in the afternoon. Chance of precipitation is 30%.
Sunday Night
Partly cloudy, with a low around 32. Light and variable wind.
Monday
Mostly sunny, with a high near 62. Calm wind becoming west southwest around 5 mph in the afternoon.
Monday Night
Mostly clear, with a low around 34.
Tuesday
Mostly sunny, with a high near 64.
Tuesday Night
Partly cloudy, with a low around 36.
Wednesday
Sunny, with a high near 64.
Wednesday Night
Mostly clear, with a low around 35.
Thursday
Sunny, with a high near 66.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Canyon WY
 44.74°N 110.5°W (Elev. 7953 ft)
Last Update:
12:33 pm MDT Sep 18, 2026
Forecast Valid:
12pm MDT Sep 18, 2026-6pm MDT Sep 24, 2026
 
Forecast Discussion
 
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Additional Resources

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation