Lyon, MS Weather Forecast

Local 7-day forecast

101°
F

Sunny

Track current conditions, temperature changes, wind, and the full daily outlook for Lyon, MS in one place.

Tuesday, September 15, 2026
Wind: 5 mph SSE
This Afternoon

Sunny, with a high near 101. Heat index values as high as 110. South southeast wind around 5 mph.

Local 7-day forecast

Local Weather Overview

This forecast page for Lyon, MS 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: Sep 15, 2026 2:56 PM CDT.

The active forecast window currently covers Sep 15 to Sep 21, 2026 for Lyon, MS.

Page Snapshot

Page focus
city weather
Forecast window
Sep 15 to Sep 21, 2026
Latest sync
Sep 15, 2026 2:56 PM CDT
Forecast office
MEG
Source
NOAA / NWS
Next High
101°F
This Afternoon
Next Low
75°F
Tonight
Rain Outlook
2
Periods mentioning precipitation
Windiest
5 to 10 mph
Monday

Daily Outlook

Today
Sep 15
Sunny
101 °F
/ 75°F
Wind 5 mph
Wed
Sep 16
Sunny
101 °F
/ 72°F
Wind 5 mph
Thu
Sep 17
Sunny
100 °F
/ 71°F
Wind 0 to 5 mph
Fri
Sep 18
Sunny
101 °F
/ 72°F
Wind 0 to 5 mph
Sat
Sep 19
Sunny
101 °F
/ 73°F
Wind 0 to 5 mph
Sun
Sep 20
Sunny
99 °F
/ 71°F
Wind 0 to 5 mph
Mon
Sep 21
Mostly Sunny then Chance Showers And Thunderstorms
93 °F
/ 67°F
Wind 5 to 10 mph

This Week in Lyon

This Afternoon looks like the warmest upcoming period in Lyon at 101 degrees F.

Monday Night is the coolest period ahead with temperatures near 67 degrees F.

The strongest winds are forecast for Monday at about 5 to 10 mph NNW.

Precipitation is mentioned in 2 upcoming forecast periods.

Forecast Details

Last updated
Sep 15, 2026 2:56 PM CDT
Coverage
7 days
Time zone
America/Chicago
Forecast office
MEG
Radar station
KNQA

Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.

Open NOAA source

Extended Forecast

Tonight
Sep 15
75°F
Clear
0 to 5 mph SE

Clear, with a low around 75. Heat index values as high as 105. Southeast wind 0 to 5 mph.

Wednesday
Sep 16
101°F
Sunny
5 mph SSE

Sunny. High near 101, with temperatures falling to around 98 in the afternoon. Heat index values as high as 109. South southeast wind around 5 mph.

Wednesday Night
Sep 16
72°F
Mostly Clear
0 to 5 mph SE

Mostly clear, with a low around 72. Heat index values as high as 104. Southeast wind 0 to 5 mph.

Thursday
Sep 17
100°F
Sunny
0 to 5 mph SE

Sunny, with a high near 100. Southeast wind 0 to 5 mph.

Thursday Night
Sep 17
71°F
Mostly Clear
0 mph

Mostly clear, with a low around 71. East southeast wind around 0 mph.

Friday
Sep 18
101°F
Sunny
0 to 5 mph ENE

Sunny, with a high near 101. East northeast wind 0 to 5 mph.

Friday Night
Sep 18
72°F
Mostly Clear
0 mph

Mostly clear, with a low around 72. Southeast wind around 0 mph.

Saturday
Sep 19
101°F
Sunny
0 to 5 mph SSW

Sunny, with a high near 101.

Saturday Night
Sep 19
73°F
Mostly Clear
0 mph

Mostly clear, with a low around 73.

Sunday
Sep 20
99°F
Sunny
0 to 5 mph SSW

Sunny, with a high near 99.

Sunday Night
Sep 20
71°F
Partly Cloudy
0 to 5 mph SSE

Partly cloudy, with a low around 71.

Monday
Sep 21
93°F
Mostly Sunny then Chance Showers And Thunderstorms
5 to 10 mph NNW

A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 93. Chance of precipitation is 30%.

Monday Night
Sep 21
67°F
Chance Showers And Thunderstorms
5 to 10 mph NNE

A chance of showers and thunderstorms before 1am. Partly cloudy, with a low around 67. Chance of precipitation is 30%.

Detailed Forecast

Period Conditions Temp Wind
This Afternoon
Sep 15
Sunny
101°F
5 mph
SSE
Tonight
Sep 15
Clear
75°F
0 to 5 mph
SE
Wednesday
Sep 16
Sunny
101°F
5 mph
SSE
Wednesday Night
Sep 16
Mostly Clear
72°F
0 to 5 mph
SE
Thursday
Sep 17
Sunny
100°F
0 to 5 mph
SE
Thursday Night
Sep 17
Mostly Clear
71°F
0 mph
Friday
Sep 18
Sunny
101°F
0 to 5 mph
ENE
Friday Night
Sep 18
Mostly Clear
72°F
0 mph
Saturday
Sep 19
Sunny
101°F
0 to 5 mph
SSW
Saturday Night
Sep 19
Mostly Clear
73°F
0 mph
Sunday
Sep 20
Sunny
99°F
0 to 5 mph
SSW
Sunday Night
Sep 20
Partly Cloudy
71°F
0 to 5 mph
SSE
Monday
Sep 21
Mostly Sunny then Chance Showers And Thunderstorms
93°F
5 to 10 mph
NNW
Monday Night
Sep 21
Chance Showers And Thunderstorms
67°F
5 to 10 mph
NNE
Lyonmssign2
Lyonmssign2 image
Weather data provided by the National Weather Service (NOAA). Forecast pages update automatically as new periods are synced for each supported U.S. location.