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

Sinlaku Continues to Impact the Marianas; Severe Weather from the Central US to the Northeast; Late-Season Snow in the Northwest

Sinlaku continues to bring destructive winds, widespread heavy rain/flooding, and storm surge to the Marianas. Showers and severe thunderstorms are expected from the Northeast to the Mid-Mississippi Valley and to the Central/Southern Plains through Thursday. A front will produce late-season snowfall over the Cascades and Northern Rockies and coastal rain over the Northwest Coast through Thursday. Read More >

Hazardous Weather Conditions

Current conditions at

Harlan, Harlan Municipal Airport (KHNR)

Lat: 41.58°NLon: 95.34°WElev: 1230ft.

Fair

66°F

19°C

Humidity 68%
Wind Speed NW 18 G 25 mph
Barometer 29.67 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 15 Apr 6:15 pm CDT
Extended Forecast for

Harlan IA

  • Tonight

    Tonight: A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Some of the storms could be severe. Partly cloudy, with a low around 45. Northwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.

    Low: 45 °F

    Severe
    Thunderstorms
    then Mostly
    Clear

  • Thursday

    Thursday: Sunny, with a high near 78. Light south southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 22 mph.

    High: 78 °F

    Sunny

  • Thursday Night

    Thursday Night: Increasing clouds, with a low around 54. South southeast wind 10 to 15 mph, with gusts as high as 24 mph.

    Low: 54 °F

    Increasing
    Clouds

  • Friday

    Friday: A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Partly sunny, with a high near 75. Breezy, with a south southeast wind 16 to 18 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    High: 75 °F

    Chance
    Showers and
    Breezy

  • Friday Night

    Friday Night: A chance of rain showers before 4am, then a slight chance of rain and snow showers. Partly cloudy, with a low around 33. Breezy, with a north northwest wind 15 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.

    Low: 33 °F

    Chance
    Showers and
    Breezy then
    Chance
    Rain/Snow

  • Saturday

    Saturday: A 10 percent chance of snow showers before 7am. Sunny, with a high near 51. Breezy, with a northwest wind 14 to 18 mph, with gusts as high as 28 mph.

    High: 51 °F

    Slight Chance
    Snow Showers
    then Sunny
    and Breezy

  • Saturday Night

    Saturday Night: Mostly clear, with a low around 30. Northwest wind 9 to 14 mph becoming light west northwest after midnight. Winds could gust as high as 22 mph.

    Low: 30 °F

    Mostly Clear

  • Sunday

    Sunday: Sunny, with a high near 61. West northwest wind 5 to 10 mph.

    High: 61 °F

    Sunny

  • Sunday Night

    Sunday Night: Mostly clear, with a low around 39. North northeast wind 6 to 9 mph becoming southeast after midnight. Winds could gust as high as 17 mph.

    Low: 39 °F

    Mostly Clear

Detailed Forecast

Tonight
A chance of showers and thunderstorms before 10pm, then a slight chance of showers between 10pm and 11pm. Some of the storms could be severe. Partly cloudy, with a low around 45. Northwest wind 5 to 7 mph becoming calm in the evening. Chance of precipitation is 30%. New precipitation amounts between a tenth and quarter of an inch, except higher amounts possible in thunderstorms.
Thursday
Sunny, with a high near 78. Light south southwest wind increasing to 10 to 15 mph in the morning. Winds could gust as high as 22 mph.
Thursday Night
Increasing clouds, with a low around 54. South southeast wind 10 to 15 mph, with gusts as high as 24 mph.
Friday
A chance of showers before 1pm, then a chance of showers and thunderstorms between 1pm and 4pm, then a chance of showers after 4pm. Partly sunny, with a high near 75. Breezy, with a south southeast wind 16 to 18 mph becoming west northwest in the afternoon. Winds could gust as high as 28 mph. Chance of precipitation is 50%. New rainfall amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Friday Night
A chance of rain showers before 4am, then a slight chance of rain and snow showers. Partly cloudy, with a low around 33. Breezy, with a north northwest wind 15 to 18 mph, with gusts as high as 26 mph. Chance of precipitation is 30%. New precipitation amounts of less than a tenth of an inch possible.
Saturday
A 10 percent chance of snow showers before 7am. Sunny, with a high near 51. Breezy, with a northwest wind 14 to 18 mph, with gusts as high as 28 mph.
Saturday Night
Mostly clear, with a low around 30. Northwest wind 9 to 14 mph becoming light west northwest after midnight. Winds could gust as high as 22 mph.
Sunday
Sunny, with a high near 61. West northwest wind 5 to 10 mph.
Sunday Night
Mostly clear, with a low around 39. North northeast wind 6 to 9 mph becoming southeast after midnight. Winds could gust as high as 17 mph.
Monday
Sunny, with a high near 73. Breezy, with a south wind 10 to 18 mph, with gusts as high as 25 mph.
Monday Night
Partly cloudy, with a low around 48. South wind 13 to 16 mph, with gusts as high as 23 mph.
Tuesday
Sunny, with a high near 74. Southwest wind 11 to 15 mph, with gusts as high as 22 mph.
Tuesday Night
Mostly clear, with a low around 49. South southeast wind 9 to 11 mph, with gusts as high as 17 mph.
Wednesday
A slight chance of showers and thunderstorms. Mostly sunny, with a high near 73. South southeast wind 8 to 16 mph, with gusts as high as 23 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Harlan IA
 41.66°N 95.32°W (Elev. 1299 ft)
Last Update:
5:11 pm CDT Apr 15, 2026
Forecast Valid:
6pm CDT Apr 15, 2026-6pm CDT Apr 22, 2026
 
Forecast Discussion
 
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Additional Resources

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Chance of Precipitation