Potosi, MO Weather Forecast
Local 7-day forecast
Chance Rain Showers then Slight Chance Showers And Thunderstorms
Track current conditions, temperature changes, wind, and the full daily outlook for Potosi, MO in one place.
A chance of rain showers before 1pm, then a slight chance of showers and thunderstorms between 1pm and 2pm, then a chance of showers and thunderstorms between 2pm and 4pm, then a chance of showers and thunderstorms between 4pm and 5pm, then showers and thunderstorms likely. Mostly cloudy, with a high near 81. Southwest wind around 9 mph, with gusts as high as 23 mph. Chance of precipitation is 60%.
Local Weather Overview
This forecast page for Potosi, MO 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: Apr 15, 2026 8:15 AM CDT.
The active forecast window currently covers Apr 15 to Apr 21, 2026 for Potosi, MO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Apr 15 to Apr 21, 2026
- Latest sync
- Apr 15, 2026 8:15 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Potosi
Friday looks like the warmest upcoming period in Potosi at 86 degrees F.
Saturday Night is the coolest period ahead with temperatures near 39 degrees F.
The strongest winds are forecast for Today at about 9 mph SW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Apr 15, 2026 8:15 AM CDT
- Coverage
- 7 days
- Time zone
- America/Chicago
- Forecast office
- LSX
- Radar station
- KLSX
Weather data is provided by the National Weather Service and refreshed automatically for U.S. locations.
Open NOAA sourceExtended Forecast
A chance of showers and thunderstorms before 10pm, then showers and thunderstorms. Mostly cloudy, with a low around 61. Southwest wind around 8 mph, with gusts as high as 22 mph. Chance of precipitation is 90%.
A chance of rain showers before 1pm, then a chance of showers and thunderstorms. Mostly sunny, with a high near 83. Southwest wind around 7 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 60. Southwest wind around 3 mph. Chance of precipitation is 50%.
A chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 86. South wind 3 to 9 mph, with gusts as high as 22 mph. Chance of precipitation is 40%.
A chance of showers and thunderstorms before 1am, then showers and thunderstorms likely. Partly cloudy. Low around 52, with temperatures rising to around 61 overnight. Chance of precipitation is 70%.
Showers and thunderstorms likely. Partly sunny, with a high near 68. Chance of precipitation is 70%.
A chance of rain showers before 1am. Partly cloudy, with a low around 39. Chance of precipitation is 40%.
Sunny, with a high near 65.
Clear, with a low around 39.
Sunny, with a high near 72.
Mostly clear, with a low around 49.
Mostly sunny, with a high near 77.
Partly cloudy, with a low around 56.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Apr 15
|
Chance Rain Showers then Slight Chance Showers And Thunderstorms
|
81°F |
9 mph
SW
|
|
Tonight
Apr 15
|
Chance Showers And Thunderstorms then Showers And Thunderstorms
|
61°F |
8 mph
SW
|
|
Thursday
Apr 16
|
Chance Rain Showers then Chance Showers And Thunderstorms
|
83°F |
7 mph
SW
|
|
Thursday Night
Apr 16
|
Chance Showers And Thunderstorms then Mostly Clear
|
60°F |
3 mph
SW
|
|
Friday
Apr 17
|
Mostly Sunny then Chance Showers And Thunderstorms
|
86°F |
3 to 9 mph
S
|
|
Friday Night
Apr 17
|
Chance Showers And Thunderstorms
|
52°F |
9 mph
S
|
|
Saturday
Apr 18
|
Showers And Thunderstorms Likely
|
68°F |
9 mph
W
|
|
Saturday Night
Apr 18
|
Chance Rain Showers
|
39°F |
8 mph
NW
|
|
Sunday
Apr 19
|
Sunny
|
65°F |
5 to 8 mph
NW
|
|
Sunday Night
Apr 19
|
Clear
|
39°F |
2 to 6 mph
SW
|
|
Monday
Apr 20
|
Sunny
|
72°F |
3 to 7 mph
S
|
|
Monday Night
Apr 20
|
Mostly Clear
|
49°F |
6 mph
S
|
|
Tuesday
Apr 21
|
Mostly Sunny
|
77°F |
8 mph
SW
|
|
Tuesday Night
Apr 21
|
Partly Cloudy
|
56°F |
7 mph
SW
|
Nearby Forecasts
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