National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Hazardous Weather Conditions

Current conditions at

Monticello, Monticello Municipal Airport/Ellis Field (KLLQ)

Lat: 33.64°NLon: 91.75°WElev: 269ft.

A Few Clouds

99°F

37°C

Humidity 32%
Wind Speed NE 6 mph
Barometer 29.99 in (1015.0 mb)
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index102°F (39°C)
Last update 18 Aug 1:53 pm CDT
Extended Forecast for

Portland AR

Heat Advisory August 19, 10:00am until August 19, 08:00pm
Heat Advisory August 18, 02:40pm until August 18, 08:00pm
Click here for hazard details and duration
Heat Advisory
Heat Advisory
  •  
    Heat Advisory August 18, 02:40pm until August 18, 08:00pm

    NOW until 8:00pm Mon

    Heat Advisory

  • This Afternoon

    High: 100 °F

    Slight Chance
    T-storms

  • Tonight

    Tonight: Mostly clear, with a low around 74. East northeast wind around 5 mph becoming calm.

    Low: 74 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny and hot, with a high near 101. Heat index values as high as 107. Calm wind becoming northeast around 5 mph in the afternoon.

    High: 101 °F

    Hot

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 74. North northeast wind around 5 mph becoming calm.

    Low: 74 °F

    Mostly Clear

  • Wednesday

    Wednesday: A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Calm wind becoming north around 5 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 99 °F

    Sunny then
    Chance
    T-storms

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. North northeast wind around 5 mph becoming calm in the evening.

    Low: 72 °F

    Chance
    T-storms then
    Chance
    Showers

  • Thursday

    Thursday: A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 92. Calm wind becoming north northeast around 5 mph in the morning. Chance of precipitation is 40%.

    High: 92 °F

    Chance
    T-storms

  • Thursday Night

    Thursday Night: A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71. North northeast wind around 5 mph becoming calm in the evening.

    Low: 71 °F

    Slight Chance
    T-storms

Detailed Forecast

This Afternoon
A 20 percent chance of showers and thunderstorms. Sunny and hot, with a high near 100. Heat index values as high as 106. Northeast wind around 5 mph.
Tonight
Mostly clear, with a low around 74. East northeast wind around 5 mph becoming calm.
Tuesday
Sunny and hot, with a high near 101. Heat index values as high as 107. Calm wind becoming northeast around 5 mph in the afternoon.
Tuesday Night
Mostly clear, with a low around 74. North northeast wind around 5 mph becoming calm.
Wednesday
A 50 percent chance of showers and thunderstorms after 1pm. Mostly sunny and hot, with a high near 99. Calm wind becoming north around 5 mph in the afternoon. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Wednesday Night
A 30 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 72. North northeast wind around 5 mph becoming calm in the evening.
Thursday
A slight chance of showers, then a chance of showers and thunderstorms after 10am. Mostly sunny, with a high near 92. Calm wind becoming north northeast around 5 mph in the morning. Chance of precipitation is 40%.
Thursday Night
A 20 percent chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 71. North northeast wind around 5 mph becoming calm in the evening.
Friday
A 30 percent chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Calm wind becoming northeast around 5 mph in the afternoon.
Friday Night
Partly cloudy, with a low around 70.
Saturday
A 20 percent chance of showers and thunderstorms. Sunny, with a high near 94.
Saturday Night
Mostly clear, with a low around 71.
Sunday
Sunny, with a high near 94.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Portland AR
 33.23°N 91.54°W
Last Update:
2:15 pm CDT Aug 18, 2025
Forecast Valid:
2pm CDT Aug 18, 2025-6pm CDT Aug 24, 2025
 
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