O Brien County, IA Weather Forecast
County weather hub
Chance Rain Showers then Slight Chance Showers And Thunderstorms
Compare major city weather across O'Brien County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms. Mostly sunny, with a high near 69. Chance of precipitation is 30%.
County Weather Overview
This county weather page brings together forecast coverage for O'Brien County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 3 of 3 mapped cities in O'Brien County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 15 to Apr 16, 2026
- Latest sync
- Apr 10, 2026 12:48 PM CDT
- Forecast office
- FSD
- Source
- NOAA / NWS
Daily Outlook
This Week in O'Brien County
Thursday looks like the warmest upcoming period in O'Brien County at 75 degrees F.
Thursday Night is the coolest period ahead with temperatures near 41 degrees F.
The strongest winds are forecast for Thursday at about 10 to 20 mph SW.
Precipitation is mentioned in 4 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 10, 2026 12:48 PM CDT
- Coverage
- 2 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 showers and thunderstorms. Mostly clear, with a low around 48.
A slight chance of rain showers. Sunny, with a high near 75.
A chance of rain showers. Partly cloudy, with a low around 41. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Wednesday
Apr 15
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
69°F |
10 to 15 mph
W
|
|
Wednesday Night
Apr 15
|
Slight Chance Showers And Thunderstorms
|
48°F |
10 mph
S
|
|
Thursday
Apr 16
|
Slight Chance Rain Showers
|
75°F |
10 to 20 mph
SW
|
|
Thursday Night
Apr 16
|
Chance Rain Showers
|
41°F |
15 mph
N
|
Major City Forecasts
Live forecast snapshots for major cities across O'Brien County.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in O'Brien County.
Largest mapped city population in this region: 5,071.
