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

Air Quality Concerns; Fire Weather; Extreme Heat; Severe Thunderstorms and Flash Flooding

Wildfire smoke continues to result in poor air quality from the Upper Midwest into the Northeast. Dangerous heat and fire weather concerns for portions of the Four Corners region into the central Great Basin and Rockies. Heavy rainfall and flash flooding possible for the Southeast through today. Strong to severe thunderstorms for the Southern Plains with severe wind gusts and large hail possible. Read More >

Hazardous Weather Conditions

Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

A Few Clouds

73°F

23°C

Humidity 65%
Wind Speed S 5 mph
Barometer 30.13 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 4 Aug 1:35 pm CDT
Extended Forecast for

Irwin IA

  • This Afternoon

    This Afternoon: A slight chance of showers before 2pm, then a slight chance of showers after 3pm. Mostly cloudy, with a high near 76. South southeast wind around 7 mph. Chance of precipitation is 20%.

    High: 76 °F

    Slight Chance
    Showers

  • Tonight

    Tonight: Partly cloudy, with a low around 58. Southeast wind around 6 mph becoming calm in the evening.

    Low: 58 °F

    Partly Cloudy

  • Tuesday

    Tuesday: Mostly sunny, with a high near 81. Light southeast wind becoming south southeast 5 to 10 mph in the morning. Winds could gust as high as 17 mph.

    High: 81 °F

    Mostly Sunny

  • Tuesday Night

    Tuesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. Southeast wind 6 to 8 mph.

    Low: 63 °F

    Partly Cloudy
    then Slight
    Chance
    T-storms

  • Wednesday

    Wednesday: Mostly sunny, with a high near 86. South southeast wind 6 to 11 mph, with gusts as high as 18 mph.

    High: 86 °F

    Mostly Sunny

  • Wednesday Night

    Wednesday Night: A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. South wind 6 to 8 mph.

    Low: 68 °F

    Mostly Clear
    then Slight
    Chance
    T-storms

  • Thursday

    Thursday: Sunny, with a high near 90. South wind 6 to 11 mph, with gusts as high as 17 mph.

    High: 90 °F

    Sunny

  • Thursday Night

    Thursday Night: Partly cloudy, with a low around 71. South wind around 10 mph, with gusts as high as 17 mph.

    Low: 71 °F

    Partly Cloudy

  • Friday

    Friday: Sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 22 mph.

    High: 92 °F

    Sunny

Detailed Forecast

This Afternoon
A slight chance of showers before 2pm, then a slight chance of showers after 3pm. Mostly cloudy, with a high near 76. South southeast wind around 7 mph. Chance of precipitation is 20%.
Tonight
Partly cloudy, with a low around 58. Southeast wind around 6 mph becoming calm in the evening.
Tuesday
Mostly sunny, with a high near 81. Light southeast wind becoming south southeast 5 to 10 mph in the morning. Winds could gust as high as 17 mph.
Tuesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 63. Southeast wind 6 to 8 mph.
Wednesday
Mostly sunny, with a high near 86. South southeast wind 6 to 11 mph, with gusts as high as 18 mph.
Wednesday Night
A 20 percent chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 68. South wind 6 to 8 mph.
Thursday
Sunny, with a high near 90. South wind 6 to 11 mph, with gusts as high as 17 mph.
Thursday Night
Partly cloudy, with a low around 71. South wind around 10 mph, with gusts as high as 17 mph.
Friday
Sunny, with a high near 92. South wind 10 to 15 mph, with gusts as high as 22 mph.
Friday Night
A slight chance of showers and thunderstorms after 1am. Partly cloudy, with a low around 70. South wind around 11 mph, with gusts as high as 18 mph.
Saturday
A slight chance of showers and thunderstorms. Partly sunny, with a high near 85. South wind 9 to 11 mph, with gusts as high as 18 mph.
Saturday Night
A chance of showers and thunderstorms. Mostly cloudy, with a low around 63. Southwest wind 5 to 8 mph.
Sunday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 82. West wind 3 to 7 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Irwin IA
 41.79°N 95.21°W (Elev. 1247 ft)
Last Update:
1:45 pm CDT Aug 4, 2025
Forecast Valid:
1pm CDT Aug 4, 2025-6pm CDT Aug 10, 2025
 
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