Lyon County, IA Weather Forecast
County weather hub
Mostly Sunny
Compare major city weather across Lyon County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly sunny, with a high near 81. Southeast wind 5 to 15 mph, with gusts as high as 25 mph.
County Weather Overview
This county weather page brings together forecast coverage for Lyon County so visitors can compare temperatures, wind, and conditions across the region without hopping between unrelated pages.
Current forecast coverage spans 2 of 2 mapped cities in Lyon County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Jun 2 to Jun 7, 2026
- Latest sync
- Jun 1, 2026 10:12 AM CDT
- Forecast office
- FSD
- Source
- NOAA / NWS
Daily Outlook
This Week in Lyon County
Sunday looks like the warmest upcoming period in Lyon County at 87 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 57 degrees F.
The strongest winds are forecast for Wednesday at about 15 to 20 mph S.
Precipitation is mentioned in 10 upcoming forecast periods.
Forecast Details
- Last updated
- Jun 1, 2026 10:12 AM CDT
- Coverage
- 6 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
Partly cloudy, with a low around 57. Southeast wind 10 to 15 mph, with gusts as high as 25 mph.
A chance of rain showers between 7am and 4pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 81. South wind 15 to 20 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 7pm, then a chance of showers and thunderstorms between 7pm and 1am, then showers and thunderstorms likely. Cloudy, with a low around 60. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 70%.
Showers and thunderstorms likely before 1pm, then a chance of showers and thunderstorms. Mostly cloudy, with a high near 80. Chance of precipitation is 70%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 58. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Partly sunny, with a high near 83. Chance of precipitation is 30%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 60. Chance of precipitation is 40%.
A slight chance of showers and thunderstorms. Partly sunny, with a high near 85.
A slight chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 61.
A slight chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 87.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 62. Chance of precipitation is 30%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Tuesday
Jun 2
|
Mostly Sunny
|
81°F |
5 to 15 mph
SE
|
|
Tuesday Night
Jun 2
|
Partly Cloudy
|
57°F |
10 to 15 mph
SE
|
|
Wednesday
Jun 3
|
Chance Rain Showers
|
81°F |
15 to 20 mph
S
|
|
Wednesday Night
Jun 3
|
Chance Showers And Thunderstorms
|
60°F |
10 to 15 mph
S
|
|
Thursday
Jun 4
|
Showers And Thunderstorms Likely
|
80°F |
10 mph
S
|
|
Thursday Night
Jun 4
|
Chance Showers And Thunderstorms
|
58°F |
5 to 10 mph
S
|
|
Friday
Jun 5
|
Chance Showers And Thunderstorms
|
83°F |
5 to 10 mph
SSE
|
|
Friday Night
Jun 5
|
Chance Showers And Thunderstorms
|
60°F |
5 to 10 mph
S
|
|
Saturday
Jun 6
|
Slight Chance Showers And Thunderstorms
|
85°F |
5 to 10 mph
S
|
|
Saturday Night
Jun 6
|
Slight Chance Showers And Thunderstorms
|
61°F |
5 mph
SE
|
|
Sunday
Jun 7
|
Partly Sunny then Slight Chance Showers And Thunderstorms
|
87°F |
5 to 15 mph
SE
|
|
Sunday Night
Jun 7
|
Chance Showers And Thunderstorms
|
62°F |
5 to 10 mph
SE
|
Major City Forecasts
Live forecast snapshots for major cities across Lyon County.
Coverage
Forecast coverage currently spans 2 of 2 mapped cities in Lyon County.
Largest mapped city population in this region: 2,518.
