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

Severe Storms and Heavy Rain in Texas; Record Heat Along the East Coast

Scattered severe storms with large hail, isolated severe gusts, and localized flooding are expected across parts of west Texas. Isolated flash flooding is also possible in the central Gulf coast. An early season heat wave will continue to impact the eastern U.S. today, before isolated severe storms move across the central Appalachians into the Mid-Atlantic and far southern New England. Read More >

Current conditions at

Monticello Regional Airport (KMXO)

Lat: 42.22°NLon: 91.16°WElev: 827ft.

Partly Cloudy

61°F

16°C

Humidity 55%
Wind Speed Vrbl 5 G 12 mph
Barometer 30.25 in
Dewpoint 45°F (7°C)
Visibility 10.00 mi
Last update 20 May 1:15 pm CDT
Extended Forecast for

Delaware IA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 63. Northeast wind around 10 mph.

    High: 63 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly cloudy, with a low around 43. Northeast wind 5 to 10 mph.

    Low: 43 °F

    Mostly Cloudy

  • Thursday

    Thursday: Mostly cloudy, with a high near 62. East wind around 10 mph, with gusts as high as 20 mph.

    High: 62 °F

    Mostly Cloudy

  • Thursday Night

    Thursday Night: A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 45. East wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 45 °F

    Mostly Cloudy
    then Slight
    Chance
    Showers

  • Friday

    Friday: A 50 percent chance of showers after 1pm. Mostly cloudy, with a high near 63.

    High: 63 °F

    Mostly Cloudy
    then Chance
    Showers

  • Friday Night

    Friday Night: A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 49.

    Low: 49 °F

    Chance
    Showers

  • Saturday

    Saturday: Partly sunny, with a high near 71.

    High: 71 °F

    Partly Sunny

  • Saturday Night

    Saturday Night: Partly cloudy, with a low around 51.

    Low: 51 °F

    Partly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 77.

    High: 77 °F

    Mostly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 63. Northeast wind around 10 mph.
Tonight
Mostly cloudy, with a low around 43. Northeast wind 5 to 10 mph.
Thursday
Mostly cloudy, with a high near 62. East wind around 10 mph, with gusts as high as 20 mph.
Thursday Night
A 20 percent chance of showers after 1am. Mostly cloudy, with a low around 45. East wind 10 to 15 mph, with gusts as high as 20 mph.
Friday
A 50 percent chance of showers after 1pm. Mostly cloudy, with a high near 63.
Friday Night
A 50 percent chance of showers before 1am. Mostly cloudy, with a low around 49.
Saturday
Partly sunny, with a high near 71.
Saturday Night
Partly cloudy, with a low around 51.
Sunday
Mostly sunny, with a high near 77.
Sunday Night
Mostly clear, with a low around 53.
Memorial Day
Mostly sunny, with a high near 82.
Monday Night
Partly cloudy, with a low around 57.
Tuesday
Mostly sunny, with a high near 84.
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Forecast Area
Tiles ©ESRI

ABOUT THIS FORECAST

 
Point Forecast:
Delaware IA
 42.47°N 91.35°W (Elev. 1076 ft)
Last Update:
1:26 pm CDT May 20, 2026
Forecast Valid:
1pm CDT May 20, 2026-6pm CDT May 26, 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