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

79°F

26°C

Humidity 100%
Wind Speed S 10 G 18 mph
Barometer 29.81 in
Dewpoint 79°F (26°C)
Visibility 10.00 mi
Heat Index84°F (29°C)
Last update 29 Jun 5:35 am CDT
Extended Forecast for

4 Miles NW Viola IA

Extreme Heat Warning June 29, 12:00pm until July 1, 10:00pm
Click here for hazard details and duration
Extreme Heat Warning
  • Today

    Today: Sunny, with a high near 92. Heat index values as high as 106. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.

    High: 92 °F

    Mostly Sunny
    then Sunny
    and Breezy

  • Tonight

    Tonight: Mostly clear, with a low around 77. South wind 10 to 15 mph, with gusts as high as 30 mph.

    Low: 77 °F

    Mostly Clear

  • Tuesday

    Tuesday: Sunny, with a high near 94. Heat index values as high as 106. Southwest wind around 15 mph, with gusts as high as 25 mph.

    High: 94 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 75. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

    Low: 75 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: A 30 percent chance of showers after 1am.  Partly cloudy, with a low around 75.

    Low: 75 °F

    Mostly Clear
    then Chance
    Showers

  • Thursday

    Thursday: Mostly sunny, with a high near 92.

    High: 92 °F

    Mostly Sunny

  • Thursday Night

    Thursday Night: A chance of showers and thunderstorms.  Partly cloudy, with a low around 73. Chance of precipitation is 40%.

    Low: 73 °F

    Chance
    T-storms

  • Friday

    Friday: Mostly sunny, with a high near 90.

    High: 90 °F

    Mostly Sunny

Detailed Forecast

Today
Sunny, with a high near 92. Heat index values as high as 106. Breezy, with a south wind 10 to 20 mph, with gusts as high as 30 mph.
Tonight
Mostly clear, with a low around 77. South wind 10 to 15 mph, with gusts as high as 30 mph.
Tuesday
Sunny, with a high near 94. Heat index values as high as 106. Southwest wind around 15 mph, with gusts as high as 25 mph.
Tuesday Night
Mostly clear, with a low around 75. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.
Wednesday
Sunny, with a high near 93.
Wednesday Night
A 30 percent chance of showers after 1am. Partly cloudy, with a low around 75.
Thursday
Mostly sunny, with a high near 92.
Thursday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 73. Chance of precipitation is 40%.
Friday
Mostly sunny, with a high near 90.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly clear, with a low around 72.
Independence Day
Mostly sunny, with a high near 89.
Saturday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 70.
Sunday
A 30 percent chance of showers and thunderstorms. Mostly sunny, with a high near 85.
Basemap Options
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ABOUT THIS FORECAST

 
Point Forecast:
4 Miles NW Viola IA
 42.12°N 91.45°W (Elev. 938 ft)
5:41 am CDT Jun 29, 2026
5am CDT Jun 29, 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