Dangerous Heat Builds and Expands; Critical Fire Weather for the Southwest; Severe Thunderstorms for Plains and Midwest

Dangerous to record breaking heat will build across the center of the nation and slowly build eastward this week. Wildfire conditions remain critical for the Southwest and portions of the Great Basin through Monday. For the northern Plains and upper Midwest, severe thunderstorms with the potential for large to very large hail and severe winds are the primary hazards. Read More >

Current conditions at

Monticello Regional Airport (KMXO)

Lat: 42.22°NLon: 91.16°WElev: 827ft.

Overcast

82°F

28°C

Humidity 100%
Wind Speed SE 9 mph
Barometer 29.73 in
Dewpoint 82°F (28°C)
Visibility 10.00 mi
Heat Index95°F (35°C)
Last update 28 Jun 8:15 pm CDT
Extended Forecast for

3 Miles SSW Colesburg IA

Extreme Heat Warning June 29, 12:00pm until June 30, 09:00pm
Click here for hazard details and duration
Extreme Heat Warning
  • Tonight

    Tonight: Cloudy during the early evening, then gradual clearing, with a low around 75. South wind around 15 mph, with gusts as high as 30 mph.

    Low: 75 °F

    Gradual
    Clearing

  • Monday

    Monday: Sunny, with a high near 93. Heat index values as high as 107. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 93 °F

    Sunny and
    Breezy

  • Monday Night

    Monday Night: Increasing clouds, with a low around 76. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    Low: 76 °F

    Partly Cloudy
    and Breezy
    then Mostly
    Cloudy

  • Tuesday

    Tuesday: Sunny, with a high near 93. Heat index values as high as 105. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.

    High: 93 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Tuesday Night

    Tuesday Night: Partly cloudy, with a low around 74.

    Low: 74 °F

    Partly Cloudy

  • Wednesday

    Wednesday: Sunny, with a high near 92.

    High: 92 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 75.

    Low: 75 °F

    Mostly Clear

  • Thursday

    Thursday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A 40 percent chance of showers and thunderstorms after 1am.  Partly cloudy, with a low around 72.

    Low: 72 °F

    Mostly Clear
    then Chance
    T-storms

Detailed Forecast

Tonight
Cloudy during the early evening, then gradual clearing, with a low around 75. South wind around 15 mph, with gusts as high as 30 mph.
Monday
Sunny, with a high near 93. Heat index values as high as 107. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Monday Night
Increasing clouds, with a low around 76. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday
Sunny, with a high near 93. Heat index values as high as 105. Breezy, with a south wind 15 to 20 mph, with gusts as high as 30 mph.
Tuesday Night
Partly cloudy, with a low around 74.
Wednesday
Sunny, with a high near 92.
Wednesday Night
Mostly clear, with a low around 75.
Thursday
Mostly sunny, with a high near 92.
Thursday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 72.
Friday
A 30 percent chance of showers and thunderstorms before 1pm. Mostly sunny, with a high near 92.
Friday Night
A 30 percent chance of showers. Partly cloudy, with a low around 71.
Independence Day
Mostly sunny, with a high near 92.
Saturday Night
A 40 percent chance of showers. Partly cloudy, with a low around 70.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 88.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
3 Miles SSW Colesburg IA
 42.6°N 91.22°W (Elev. 1050 ft)
8:01 pm CDT Jun 28, 2026
8pm CDT Jun 28, 2026-6pm CDT Jul 5, 2026
 
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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