Harlan, IA Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Harlan, IA in one place.
A chance of showers and thunderstorms after 7am. Partly sunny. High near 74, with temperatures falling to around 62 in the afternoon. West southwest wind 16 to 21 mph, with gusts as high as 29 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
Local Weather Overview
This forecast page for Harlan, IA is designed for quick trip planning, giving you a clean read on daytime highs, overnight lows, and changing conditions across the upcoming forecast window. Latest sync: Apr 16, 2026 9:13 AM CDT.
The active forecast window currently covers Apr 17 to Apr 22, 2026 for Harlan, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 17 to Apr 22, 2026
- Latest sync
- Apr 16, 2026 9:13 AM CDT
- Forecast office
- OAX
- Source
- NOAA / NWS
Daily Outlook
This Week in Harlan
Tuesday looks like the warmest upcoming period in Harlan at 75 degrees F.
Saturday Night is the coolest period ahead with temperatures near 29 degrees F.
The strongest winds are forecast for Friday at about 16 to 21 mph WSW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 16, 2026 9:13 AM CDT
- Coverage
- 6 days
- Time zone
- America/Chicago
- Forecast office
- OAX
- Radar station
- KOAX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of rain showers before 4am, then a slight chance of rain and snow showers. Partly cloudy, with a low around 32. North northwest wind 14 to 20 mph, with gusts as high as 28 mph. Chance of precipitation is 40%. New rainfall amounts less than a tenth of an inch possible.
A slight chance of rain and snow showers before 7am. Sunny, with a high near 52. Northwest wind 14 to 20 mph, with gusts as high as 29 mph. Chance of precipitation is 20%.
Mostly clear, with a low around 29. West northwest wind 2 to 16 mph, with gusts as high as 24 mph.
Sunny, with a high near 62. West northwest wind 2 to 9 mph.
Mostly clear, with a low around 38. East wind 6 to 10 mph, with gusts as high as 17 mph.
Sunny, with a high near 72. South southeast wind 10 to 18 mph, with gusts as high as 26 mph.
Mostly clear, with a low around 49. South southwest wind 12 to 17 mph, with gusts as high as 24 mph.
Sunny, with a high near 75. South southwest wind 10 to 15 mph, with gusts as high as 23 mph.
Mostly clear, with a low around 49. South wind around 13 mph, with gusts as high as 20 mph.
A slight chance of rain showers after 1pm. Sunny, with a high near 74. South southeast wind 9 to 17 mph, with gusts as high as 24 mph.
A slight chance of rain showers before 7pm, then a chance of showers and thunderstorms. Partly cloudy, with a low around 51. Southeast wind 13 to 16 mph, with gusts as high as 23 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Friday
Apr 17
|
Chance Showers And Thunderstorms
|
74°F |
16 to 21 mph
WSW
|
|
Friday Night
Apr 17
|
Chance Rain Showers then Slight Chance Rain And Snow Showers
|
32°F |
14 to 20 mph
NNW
|
|
Saturday
Apr 18
|
Slight Chance Rain And Snow Showers then Sunny
|
52°F |
14 to 20 mph
NW
|
|
Saturday Night
Apr 18
|
Mostly Clear
|
29°F |
2 to 16 mph
WNW
|
|
Sunday
Apr 19
|
Sunny
|
62°F |
2 to 9 mph
WNW
|
|
Sunday Night
Apr 19
|
Mostly Clear
|
38°F |
6 to 10 mph
E
|
|
Monday
Apr 20
|
Sunny
|
72°F |
10 to 18 mph
SSE
|
|
Monday Night
Apr 20
|
Mostly Clear
|
49°F |
12 to 17 mph
SSW
|
|
Tuesday
Apr 21
|
Sunny
|
75°F |
10 to 15 mph
SSW
|
|
Tuesday Night
Apr 21
|
Mostly Clear
|
49°F |
13 mph
S
|
|
Wednesday
Apr 22
|
Sunny then Slight Chance Rain Showers
|
74°F |
9 to 17 mph
SSE
|
|
Wednesday Night
Apr 22
|
Chance Showers And Thunderstorms
|
51°F |
13 to 16 mph
SE
|
Nearby Forecasts
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