Harrisburg, SD Weather Forecast
Local 7-day forecast
Mostly Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Harrisburg, SD in one place.
Mostly sunny, with a high near 66.
Local Weather Overview
This forecast page for Harrisburg, SD 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 10, 2026 8:03 AM CDT.
The active forecast window currently covers Oct 13 to Oct 16, 2026 for Harrisburg, SD.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Oct 13 to Oct 16, 2026
- Latest sync
- Oct 10, 2026 8:03 AM CDT
- Forecast office
- FSD
- Source
- NOAA / NWS
Daily Outlook
This Week in Harrisburg
Tuesday looks like the warmest upcoming period in Harrisburg at 66 degrees F.
Friday Night is the coolest period ahead with temperatures near 40 degrees F.
The strongest winds are forecast for Thursday at about 15 to 20 mph WNW.
Precipitation is mentioned in 6 upcoming forecast periods.
Forecast Details
- Last updated
- Oct 10, 2026 8:03 AM CDT
- Coverage
- 4 days
- Time zone
- America/Chicago
- Forecast office
- FSD
- Radar station
- KFSD
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 after 1am. Mostly clear, with a low around 50.
A chance of rain showers. Partly sunny, with a high near 65. Chance of precipitation is 50%.
A chance of rain showers before 7pm, then showers and thunderstorms likely. Mostly cloudy, with a low around 50. Chance of precipitation is 70%.
Showers and thunderstorms likely. Mostly cloudy, with a high near 63. Chance of precipitation is 70%.
A chance of rain showers. Mostly cloudy, with a low around 45. Chance of precipitation is 40%.
A slight chance of rain showers before 7am. Mostly sunny, with a high near 57.
Partly cloudy, with a low around 40.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Oct 13
|
Mostly Sunny
|
66°F |
10 mph
N
|
|
Tuesday Night
Oct 13
|
Mostly Clear then Slight Chance Rain Showers
|
50°F |
5 to 10 mph
NE
|
|
Wednesday
Oct 14
|
Chance Rain Showers
|
65°F |
10 to 15 mph
E
|
|
Wednesday Night
Oct 14
|
Showers And Thunderstorms Likely
|
50°F |
10 to 15 mph
SSE
|
|
Thursday
Oct 15
|
Showers And Thunderstorms Likely
|
63°F |
15 to 20 mph
WNW
|
|
Thursday Night
Oct 15
|
Chance Rain Showers
|
45°F |
15 mph
NW
|
|
Friday
Oct 16
|
Slight Chance Rain Showers then Mostly Sunny
|
57°F |
15 mph
NW
|
|
Friday Night
Oct 16
|
Partly Cloudy
|
40°F |
5 to 10 mph
NNW
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Harrisburg.