Harlan, IA Weather Forecast
Local 7-day forecast
Rain Showers
Track current conditions, temperature changes, wind, and the full daily outlook for Harlan, IA in one place.
Rain showers. Cloudy. High near 55, with temperatures falling to around 51 in the afternoon. North northwest wind around 16 mph, with gusts as high as 26 mph. Chance of precipitation is 90%. 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: Oct 15, 2026 3:46 PM CDT.
The active forecast window currently covers Oct 15 to Oct 21, 2026 for Harlan, IA.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 15 to Oct 21, 2026
- Latest sync
- Oct 15, 2026 3:46 PM CDT
- Forecast office
- OAX
- Source
- NOAA / NWS
Daily Outlook
This Week in Harlan
Wednesday looks like the warmest upcoming period in Harlan at 74 degrees F.
Friday Night is the coolest period ahead with temperatures near 29 degrees F.
The strongest winds are forecast for Friday at about 14 to 25 mph NNW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 15, 2026 3:46 PM CDT
- Coverage
- 7 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 slight chance of rain showers before 7pm. Mostly cloudy, with a low around 39. Northwest wind 16 to 22 mph, with gusts as high as 30 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.
Mostly cloudy, with a high near 51. North northwest wind 14 to 25 mph, with gusts as high as 37 mph.
Widespread frost after 10pm. Mostly clear, with a low around 29. North northwest wind 0 to 10 mph, with gusts as high as 16 mph.
Widespread frost before 10am. Sunny, with a high near 57. South southwest wind 1 to 13 mph, with gusts as high as 20 mph.
Clear, with a low around 39. South wind around 12 mph, with gusts as high as 18 mph.
Sunny, with a high near 65. South wind around 15 mph, with gusts as high as 23 mph.
Mostly clear, with a low around 44. South wind 5 to 10 mph, with gusts as high as 18 mph.
Mostly sunny, with a high near 65. South wind 3 to 8 mph.
Partly cloudy, with a low around 45. South southeast wind around 5 mph.
Mostly sunny, with a high near 71. South southeast wind 2 to 10 mph, with gusts as high as 16 mph.
Mostly clear, with a low around 52. South southeast wind around 7 mph.
A slight chance of rain showers after 1pm. Mostly sunny, with a high near 74. South southeast wind 7 to 13 mph, with gusts as high as 20 mph.
A slight chance of rain showers. Partly cloudy, with a low around 56. South wind around 9 mph, with gusts as high as 16 mph.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
This Afternoon
Oct 15
|
Rain Showers
|
55°F |
16 mph
NNW
|
|
Tonight
Oct 15
|
Slight Chance Rain Showers then Mostly Cloudy
|
39°F |
16 to 22 mph
NW
|
|
Friday
Oct 16
|
Mostly Cloudy
|
51°F |
14 to 25 mph
NNW
|
|
Friday Night
Oct 16
|
Widespread Frost
|
29°F |
0 to 10 mph
NNW
|
|
Saturday
Oct 17
|
Widespread Frost then Sunny
|
57°F |
1 to 13 mph
SSW
|
|
Saturday Night
Oct 17
|
Clear
|
39°F |
12 mph
S
|
|
Sunday
Oct 18
|
Sunny
|
65°F |
15 mph
S
|
|
Sunday Night
Oct 18
|
Mostly Clear
|
44°F |
5 to 10 mph
S
|
|
Monday
Oct 19
|
Mostly Sunny
|
65°F |
3 to 8 mph
S
|
|
Monday Night
Oct 19
|
Partly Cloudy
|
45°F |
5 mph
SSE
|
|
Tuesday
Oct 20
|
Mostly Sunny
|
71°F |
2 to 10 mph
SSE
|
|
Tuesday Night
Oct 20
|
Mostly Clear
|
52°F |
7 mph
SSE
|
|
Wednesday
Oct 21
|
Mostly Sunny then Slight Chance Rain Showers
|
74°F |
7 to 13 mph
SSE
|
|
Wednesday Night
Oct 21
|
Slight Chance Rain Showers
|
56°F |
9 mph
S
|
Nearby Forecasts
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Nearby forecast pages are not available for this location yet.
