Harlan, IN Weather Forecast
Local 7-day forecast
Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Harlan, IN in one place.
A chance of showers and thunderstorms before 3am, then showers and thunderstorms likely. Mostly cloudy, with a low around 63. Southwest wind around 10 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Local Weather Overview
This forecast page for Harlan, IN 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 4:23 AM EDT.
The active forecast window currently covers Apr 16 to Apr 22, 2026 for Harlan, IN.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 16 to Apr 22, 2026
- Latest sync
- Apr 16, 2026 4:23 AM EDT
- Forecast office
- IWX
- Source
- NOAA / NWS
Daily Outlook
This Week in Harlan
Friday looks like the warmest upcoming period in Harlan at 75 degrees F.
Sunday Night is the coolest period ahead with temperatures near 31 degrees F.
The strongest winds are forecast for Saturday at about 15 to 20 mph SW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 16, 2026 4:23 AM EDT
- Coverage
- 7 days
- Time zone
- America/Indiana/Indianapolis
- Forecast office
- IWX
- Radar station
- KIWX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
Showers and thunderstorms likely before noon, then a slight chance of showers and thunderstorms between noon and 5pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 74. Southwest wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 60%. New rainfall amounts between a tenth and quarter of an inch possible.
A chance of showers and thunderstorms before 7pm, then a slight chance of showers and thunderstorms between 7pm and 8pm. Partly cloudy, with a low around 51. West wind 0 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 30%.
Mostly sunny, with a high near 75. Southeast wind 0 to 10 mph.
A slight chance of showers and thunderstorms between 8pm and 2am, then showers and thunderstorms likely. Mostly cloudy, with a low around 59. South wind 5 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%. New rainfall amounts between a tenth and quarter of an inch possible.
Showers and thunderstorms before 2pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 68. Chance of precipitation is 80%. New rainfall amounts between a quarter and half of an inch possible.
A chance of showers and thunderstorms before 2am. Partly cloudy, with a low around 37. Chance of precipitation is 40%.
Mostly sunny, with a high near 50.
A slight chance of snow showers after 2am. Partly cloudy, with a low around 31. Chance of precipitation is 20%.
A slight chance of snow showers before 8am. Sunny, with a high near 56. Chance of precipitation is 20%.
Mostly clear, with a low around 42.
Mostly sunny, with a high near 71.
Partly cloudy, with a low around 50.
Mostly sunny, with a high near 69.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Apr 16
|
Chance Showers And Thunderstorms
|
63°F |
10 mph
SW
|
|
Thursday
Apr 16
|
Showers And Thunderstorms Likely then Slight Chance Showers And Thunderstorms
|
74°F |
10 to 15 mph
SW
|
|
Thursday Night
Apr 16
|
Chance Showers And Thunderstorms then Partly Cloudy
|
51°F |
0 to 15 mph
W
|
|
Friday
Apr 17
|
Mostly Sunny
|
75°F |
0 to 10 mph
SE
|
|
Friday Night
Apr 17
|
Slight Chance Showers And Thunderstorms
|
59°F |
5 to 15 mph
S
|
|
Saturday
Apr 18
|
Showers And Thunderstorms
|
68°F |
15 to 20 mph
SW
|
|
Saturday Night
Apr 18
|
Chance Showers And Thunderstorms
|
37°F |
10 to 15 mph
W
|
|
Sunday
Apr 19
|
Mostly Sunny
|
50°F |
10 to 20 mph
W
|
|
Sunday Night
Apr 19
|
Partly Cloudy then Slight Chance Snow Showers
|
31°F |
5 to 15 mph
NW
|
|
Monday
Apr 20
|
Slight Chance Snow Showers then Sunny
|
56°F |
5 to 10 mph
NW
|
|
Monday Night
Apr 20
|
Mostly Clear
|
42°F |
5 to 10 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
71°F |
10 to 15 mph
SW
|
|
Tuesday Night
Apr 21
|
Partly Cloudy
|
50°F |
10 to 15 mph
W
|
|
Wednesday
Apr 22
|
Mostly Sunny
|
69°F |
10 mph
W
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harlan.