Lyon County, MN Weather Forecast
County weather hub
Mostly Cloudy
Compare major city weather across Lyon County, scan the latest forecast snapshots, and jump into local 7-day outlook pages from one hub.
Mostly cloudy. Low around 40, with temperatures rising to around 57 overnight. West southwest wind around 25 mph, with gusts as high as 40 mph. New rainfall amounts less than a tenth of an inch possible.
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 3 of 3 mapped cities in Lyon County.
Page Snapshot
- Page focus
- county weather
- Forecast window
- Apr 17 to Apr 23, 2026
- Latest sync
- Apr 17, 2026 6:03 AM CDT
- Forecast office
- FSD
- Source
- NOAA / NWS
Daily Outlook
This Week in Lyon County
Wednesday looks like the warmest upcoming period in Lyon County at 82 degrees F.
Friday Night is the coolest period ahead with temperatures near 26 degrees F.
The strongest winds are forecast for Friday at about 25 to 30 mph NW.
Precipitation is mentioned in 5 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 17, 2026 6:03 AM CDT
- Coverage
- 7 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 before 7am, then showers and thunderstorms likely between 7am and 2pm. Mostly cloudy. High near 49, with temperatures falling to around 44 in the afternoon. Northwest wind 25 to 30 mph, with gusts as high as 40 mph. Chance of precipitation is 60%. New rainfall amounts less than a tenth of an inch possible.
Partly cloudy, with a low around 26. Northwest wind 20 to 30 mph, with gusts as high as 40 mph. New rainfall amounts less than a tenth of an inch possible.
Sunny, with a high near 47. Northwest wind 20 to 25 mph, with gusts as high as 35 mph.
Partly cloudy, with a low around 30. West northwest wind 10 to 20 mph, with gusts as high as 30 mph.
Sunny, with a high near 52. Northwest wind around 10 mph.
Clear, with a low around 30.
Sunny, with a high near 70.
Partly cloudy, with a low around 46.
Sunny, with a high near 74.
Clear, with a low around 48.
Sunny, with a high near 82.
A chance of rain showers after 1am. Partly cloudy, with a low around 59. Chance of precipitation is 30%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 78. Chance of precipitation is 50%.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Overnight
Apr 17
|
Mostly Cloudy
|
40°F |
25 mph
WSW
|
|
Friday
Apr 17
|
Showers And Thunderstorms Likely
|
49°F |
25 to 30 mph
NW
|
|
Friday Night
Apr 17
|
Partly Cloudy
|
26°F |
20 to 30 mph
NW
|
|
Saturday
Apr 18
|
Sunny
|
47°F |
20 to 25 mph
NW
|
|
Saturday Night
Apr 18
|
Partly Cloudy
|
30°F |
10 to 20 mph
WNW
|
|
Sunday
Apr 19
|
Sunny
|
52°F |
10 mph
NW
|
|
Sunday Night
Apr 19
|
Clear
|
30°F |
5 to 10 mph
ENE
|
|
Monday
Apr 20
|
Sunny
|
70°F |
10 to 20 mph
S
|
|
Monday Night
Apr 20
|
Partly Cloudy
|
46°F |
15 to 20 mph
SW
|
|
Tuesday
Apr 21
|
Sunny
|
74°F |
10 to 15 mph
NNW
|
|
Tuesday Night
Apr 21
|
Clear
|
48°F |
10 mph
ESE
|
|
Wednesday
Apr 22
|
Sunny
|
82°F |
10 to 20 mph
SSE
|
|
Wednesday Night
Apr 22
|
Partly Cloudy then Chance Rain Showers
|
59°F |
20 mph
SSE
|
|
Thursday
Apr 23
|
Chance Rain Showers
|
78°F |
20 to 25 mph
SSE
|
Major City Forecasts
Live forecast snapshots for major cities across Lyon County.
Coverage
Forecast coverage currently spans 3 of 3 mapped cities in Lyon County.
Largest mapped city population in this region: 2,055.
