Thunderstorms and Heavy Rain in the Mid-South; Heat Continues in the Southeast and Southwest

Severe thunderstorms and heavy rain are expected across portions of the mid-Mississippi Valley into the Ohio Valley and portions of Arizona. Dangerous heat persists in the South and Southeast while building into the Southwest. Overnight lows will be so warm that, when combined with oppressive dew points, little-to-no relief from the scorching daytime highs will be available. Read More >

Hazardous Weather Conditions

Current conditions at

Lamar Municipal Airport (KLAA)

Lat: 38.07°NLon: 102.69°WElev: 3684ft.

Fair

82°F

28°C

Humidity 56%
Wind Speed NE 9 mph
Barometer 30.01 in (1010.8 mb)
Dewpoint 65°F (18°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 18 Aug 7:53 pm MDT
Extended Forecast for

8 Miles W Sheridan Lake CO

  • Tonight

    Tonight: A slight chance of showers and thunderstorms between 10pm and 3am.  Mostly cloudy, with a low around 64. Northeast wind 10 to 15 mph.  Chance of precipitation is 10%.

    Low: 64 °F

    Slight Chance
    T-storms

  • Wednesday

    Wednesday: A 20 percent chance of showers and thunderstorms after 4pm.  Mostly sunny, with a high near 89. Northeast wind 5 to 10 mph becoming southwest in the afternoon.

    High: 89 °F

    Mostly Sunny
    then Slight
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms, mainly before 11pm.  Mostly cloudy, then becoming mostly clear toward daybreak, with a low around 62. Southeast wind 5 to 10 mph becoming southwest after midnight.

    Low: 62 °F

    Chance
    Showers then
    Partly Cloudy

  • Thursday

    Thursday: Sunny, with a high near 95. South wind 5 to 15 mph.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63. South southeast wind 5 to 15 mph.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 98. South southeast wind 5 to 10 mph.

    High: 98 °F

    Sunny

  • Friday Night

    Friday Night: A 20 percent chance of showers and thunderstorms before midnight.  Mostly clear, with a low around 64. Southeast wind 5 to 10 mph.

    Low: 64 °F

    Slight Chance
    T-storms then
    Mostly Clear

  • Saturday

    Saturday: Sunny and hot, with a high near 100. South southeast wind 5 to 15 mph.

    High: 100 °F

    Hot

  • Saturday Night

    Saturday Night: A 10 percent chance of showers and thunderstorms before midnight.  Partly cloudy, with a low around 65. Southeast wind 10 to 15 mph.

    Low: 65 °F

    Slight Chance
    T-storms then
    Mostly Cloudy

Detailed Forecast

Tonight
A slight chance of showers and thunderstorms between 10pm and 3am. Mostly cloudy, with a low around 64. Northeast wind 10 to 15 mph. Chance of precipitation is 10%.
Wednesday
A 20 percent chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 89. Northeast wind 5 to 10 mph becoming southwest in the afternoon.
Wednesday Night
A 30 percent chance of showers and thunderstorms, mainly before 11pm. Mostly cloudy, then becoming mostly clear toward daybreak, with a low around 62. Southeast wind 5 to 10 mph becoming southwest after midnight.
Thursday
Sunny, with a high near 95. South wind 5 to 15 mph.
Thursday Night
Mostly clear, with a low around 63. South southeast wind 5 to 15 mph.
Friday
Sunny, with a high near 98. South southeast wind 5 to 10 mph.
Friday Night
A 20 percent chance of showers and thunderstorms before midnight. Mostly clear, with a low around 64. Southeast wind 5 to 10 mph.
Saturday
Sunny and hot, with a high near 100. South southeast wind 5 to 15 mph.
Saturday Night
A 10 percent chance of showers and thunderstorms before midnight. Partly cloudy, with a low around 65. Southeast wind 10 to 15 mph.
Sunday
Mostly sunny, with a high near 99. West southwest wind around 10 mph.
Sunday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 65. Northeast wind 5 to 10 mph.
Monday
Sunny, with a high near 97. North wind around 5 mph becoming east in the afternoon.
Monday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 63. North northeast wind 5 to 10 mph.
Tuesday
Sunny, with a high near 95. West southwest wind around 5 mph becoming southeast in the afternoon.
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ABOUT THIS FORECAST

 
Point Forecast:
8 Miles W Sheridan Lake CO
 38.44°N 102.43°W (Elev. 3930 ft)
6:51 pm MDT Aug 18, 2026
8pm MDT Aug 18, 2026-6pm MDT Aug 25, 2026
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database