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

Monticello Regional Airport (KMXO)

Lat: 42.22°NLon: 91.16°WElev: 827ft.

Mostly Cloudy

81°F

27°C

Humidity 51%
Wind Speed N 7 mph
Barometer 30.04 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Heat Index82°F (28°C)
Last update 27 Aug 4:15 pm CDT
Extended Forecast for

Onslow IA

  • This Afternoon

    This Afternoon: Mostly sunny, with a high near 81. Northwest wind around 5 mph.

    High: 81 °F

    Mostly Sunny

  • Tonight

    Tonight: Mostly clear, with a low around 57. Northwest wind around 5 mph becoming calm.

    Low: 57 °F

    Mostly Clear

  • Friday

    Friday: Patchy fog before 8am. Otherwise, sunny, with a high near 84. Calm wind becoming west around 5 mph.

    High: 84 °F

    Patchy Fog
    then Sunny

  • Friday Night

    Friday Night: Partly cloudy, with a low around 63. Calm wind becoming south around 5 mph.

    Low: 63 °F

    Partly Cloudy

  • Saturday

    Saturday: A 30 percent chance of showers after 7am. Mostly cloudy, with a high near 82.

    High: 82 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 69.

    Low: 69 °F

    Mostly Cloudy

  • Sunday

    Sunday: Mostly sunny, with a high near 89.

    High: 89 °F

    Mostly Sunny

  • Sunday Night

    Sunday Night: A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73.

    Low: 73 °F

    Partly Cloudy
    then Chance
    T-storms

  • Monday

    Monday: Partly sunny, with a high near 88.

    High: 88 °F

    Partly Sunny

Detailed Forecast

This Afternoon
Mostly sunny, with a high near 81. Northwest wind around 5 mph.
Tonight
Mostly clear, with a low around 57. Northwest wind around 5 mph becoming calm.
Friday
Patchy fog before 8am. Otherwise, sunny, with a high near 84. Calm wind becoming west around 5 mph.
Friday Night
Partly cloudy, with a low around 63. Calm wind becoming south around 5 mph.
Saturday
A 30 percent chance of showers after 7am. Mostly cloudy, with a high near 82.
Saturday Night
Mostly cloudy, with a low around 69.
Sunday
Mostly sunny, with a high near 89.
Sunday Night
A 40 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 73.
Monday
Partly sunny, with a high near 88.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 71.
Tuesday
A 30 percent chance of showers and thunderstorms. Partly sunny, with a high near 87.
Tuesday Night
A 40 percent chance of showers. Partly cloudy, with a low around 70.
Wednesday
Mostly sunny, with a high near 87.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Onslow IA
 42.11°N 91.01°W (Elev. 863 ft)
Last Update:
2:51 pm CDT Aug 27, 2026
Forecast Valid:
4pm CDT Aug 27, 2026-6pm CDT Sep 2, 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