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

Hazardous Weather Conditions

Current conditions at

Dubuque Regional Airport (KDBQ)

Lat: 42.4°NLon: 90.71°WElev: 1040ft.

Fog/Mist

71°F

22°C

Humidity 96%
Wind Speed NE 8 mph
Barometer 29.88 in (1011.1 mb)
Dewpoint 70°F (21°C)
Visibility 3.00 mi
Last update 13 Aug 3:53 am CDT
Extended Forecast for

Monticello IA

Flood Watch August 13, 07:00pm until August 14, 01:00pm
Dense Fog Advisory until August 13, 09:00am
Click here for hazard details and duration
Flood Watch
Dense Fog Advisory
  •  
    Dense Fog Advisory until August 13, 09:00am

    NOW until 9:00am Thu

    Dense Fog Advisory

  • Overnight

    Low: 70 °F

    Patchy Fog

  • Thursday

    Thursday: Occasional showers and thunderstorms, mainly before 2pm. Patchy fog before 9am. High near 77. East wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.

    High: 77 °F

    T-storms and
    Patchy Fog

  • Thursday Night

    Thursday Night: Occasional showers and thunderstorms. Low around 65. East wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    Low: 65 °F

    T-storms

  • Friday

    Friday: Showers and thunderstorms, mainly before 1pm, then showers likely and possibly a thunderstorm after 5pm. High near 80. East wind around 10 mph. Chance of precipitation is 80%.

    High: 80 °F

    T-storms then
    Showers
    Likely

  • Friday Night

    Friday Night: A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 67. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 67 °F

    Chance
    T-storms then
    Showers

  • Saturday

    Saturday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a high near 86. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.

    High: 86 °F

    Chance
    T-storms then
    Chance
    Showers

  • Saturday Night

    Saturday Night: Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.

    Low: 69 °F

    Showers
    Likely

  • Sunday

    Sunday: Partly sunny, with a high near 82.

    High: 82 °F

    Partly Sunny

Detailed Forecast

Overnight
Patchy fog. Otherwise, mostly cloudy, with a steady temperature around 70. East wind around 5 mph.
Thursday
Occasional showers and thunderstorms, mainly before 2pm. Patchy fog before 9am. High near 77. East wind 5 to 10 mph. Chance of precipitation is 90%. New rainfall amounts between three quarters and one inch possible.
Thursday Night
Occasional showers and thunderstorms. Low around 65. East wind around 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Friday
Showers and thunderstorms, mainly before 1pm, then showers likely and possibly a thunderstorm after 5pm. High near 80. East wind around 10 mph. Chance of precipitation is 80%.
Friday Night
A chance of showers and thunderstorms before 7pm, then a chance of showers between 7pm and 1am, then showers and possibly a thunderstorm after 1am. Low around 67. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm. Mostly cloudy, with a high near 86. Chance of precipitation is 50%. New precipitation amounts between a quarter and half of an inch possible.
Saturday Night
Showers likely and possibly a thunderstorm. Mostly cloudy, with a low around 69. Chance of precipitation is 60%.
Sunday
Partly sunny, with a high near 82.
Sunday Night
Partly cloudy, with a low around 63.
Monday
Sunny, with a high near 79.
Monday Night
Mostly clear, with a low around 60.
Tuesday
Mostly sunny, with a high near 80.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 63.
Wednesday
A 30 percent chance of showers. Partly sunny, with a high near 80.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Monticello IA
 42.25°N 91.21°W (Elev. 928 ft)
Last Update:
3:46 am CDT Aug 13, 2026
Forecast Valid:
4am CDT Aug 13, 2026-6pm CDT Aug 19, 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