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Tropical System in the Gulf; Dangerous Heat and Air Quality Concerns; Severe Thunderstorms for Midwest to mid-Atlantic

Tropical system in the Gulf expected to gradually strengthen the next couple of days off the Florida Panhandle and Alabama coasts. Instances of flash flooding will be possible through Thursday along the eastern and central Gulf Coast. Severe thunderstorms will develop and move along a cold front crossing the Upper Midwest, and through the Ohio Valley/Mid-Atlantic on Tuesday. Read More >

Current conditions at

Evanston-Uinta County Airport - Burns Field (KEVW)

Lat: 41.27306°NLon: 111.03056°WElev: 7162.0ft.

Clear

N/A

Humidity NA
Wind Speed SSW 12 MPH
Barometer 30.23 in (1023.71 mb)
Dewpoint N/A
Visibility 10.00 mi
Last update NA
Extended Forecast for

Lyman WY

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 9pm and midnight. Mostly cloudy, with a low around 60. South southwest wind 3 to 7 mph. Chance of precipitation is 10%.

    Low: 60 °F

    Slight Chance
    T-storms then
    Partly Cloudy

  • Tuesday

    Tuesday: A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. Light and variable wind becoming southwest 5 to 8 mph in the morning.

    High: 89 °F

    Mostly Sunny
    then Chance
    T-storms

  • Tuesday Night

    Tuesday Night: Showers likely and possibly a thunderstorm before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then a chance of showers after midnight. Mostly cloudy, with a low around 56. West southwest wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 60%.

    Low: 56 °F

    Showers
    Likely then
    Chance
    Showers

  • Wednesday

    Wednesday: Showers and possibly a thunderstorm after noon. High near 82. Calm wind becoming west southwest 5 to 7 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: 82 °F

    Partly Sunny
    then Showers

  • Wednesday Night

    Wednesday Night: Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 54. West southwest wind 5 to 10 mph becoming light south after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 54 °F

    Showers then
    Chance
    Showers

  • Thursday

    Thursday: A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.

    High: 83 °F

    Mostly Sunny
    then Chance
    T-storms

  • Thursday Night

    Thursday Night: A 10 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 55.

    Low: 55 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Friday

    Friday: A slight chance of showers and thunderstorms after noon. Sunny, with a high near 87.

    High: 87 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Partly cloudy, with a low around 57.

    Low: 57 °F

    Partly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between 9pm and midnight. Mostly cloudy, with a low around 60. South southwest wind 3 to 7 mph. Chance of precipitation is 10%.
Tuesday
A 40 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89. Light and variable wind becoming southwest 5 to 8 mph in the morning.
Tuesday Night
Showers likely and possibly a thunderstorm before 9pm, then a chance of showers and thunderstorms between 9pm and midnight, then a chance of showers after midnight. Mostly cloudy, with a low around 56. West southwest wind 5 to 8 mph becoming calm after midnight. Chance of precipitation is 60%.
Wednesday
Showers and possibly a thunderstorm after noon. High near 82. Calm wind becoming west southwest 5 to 7 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.
Wednesday Night
Showers and possibly a thunderstorm before midnight, then a chance of showers. Low around 54. West southwest wind 5 to 10 mph becoming light south after midnight. Chance of precipitation is 80%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
A 30 percent chance of showers and thunderstorms after noon. Mostly sunny, with a high near 83.
Thursday Night
A 10 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 55.
Friday
A slight chance of showers and thunderstorms after noon. Sunny, with a high near 87.
Friday Night
Partly cloudy, with a low around 57.
Saturday
A slight chance of showers and thunderstorms after noon. Mostly sunny, with a high near 89.
Saturday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Sunday
A chance of showers and thunderstorms. Mostly sunny, with a high near 88.
Sunday Night
A slight chance of showers and thunderstorms. Partly cloudy, with a low around 57.
Monday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 89.
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ABOUT THIS FORECAST

 
Point Forecast:
Lyman WY
 41.34°N 110.3°W (Elev. 6598 ft)
Last Update:
1:11 pm MDT Jul 20, 2026
Forecast Valid:
4pm MDT Jul 20, 2026-6pm MDT Jul 27, 2026
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

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