Crystal Lake Park, MO Weather Forecast
Local 7-day forecast
Sunny
Track current conditions, temperature changes, wind, and the full daily outlook for Crystal Lake Park, MO in one place.
Sunny, with a high near 98. Heat index values as high as 107. Southwest wind 3 to 7 mph.
Local Weather Overview
This forecast page for Crystal Lake Park, 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: Sep 17, 2026 9:39 AM CDT.
The active forecast window currently covers Sep 17 to Sep 23, 2026 for Crystal Lake Park, MO.
Page Snapshot
- Page focus
- city weather
- Forecast window
- Sep 17 to Sep 23, 2026
- Latest sync
- Sep 17, 2026 9:39 AM CDT
- Forecast office
- LSX
- Source
- NOAA / NWS
Daily Outlook
This Week in Crystal Lake Park
Today looks like the warmest upcoming period in Crystal Lake Park at 98 degrees F.
Tuesday Night is the coolest period ahead with temperatures near 61 degrees F.
The strongest winds are forecast for Saturday at about 5 to 8 mph SW.
Precipitation is mentioned in 8 upcoming forecast periods.
Forecast Details
- Last updated
- Sep 17, 2026 9:39 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 slight chance of showers and thunderstorms before 7pm. Mostly clear, with a low around 75. Heat index values as high as 102. Southwest wind 2 to 6 mph. Chance of precipitation is 20%.
Patchy fog between 7am and 8am, then a slight chance of showers and thunderstorms between 1pm and 2pm. Sunny, with a high near 96. Heat index values as high as 105. Southeast wind around 5 mph. Chance of precipitation is 20%.
Mostly clear, with a low around 75. Heat index values as high as 100. South wind around 5 mph.
Mostly sunny, with a high near 97. Southwest wind 5 to 8 mph.
A slight chance of rain showers after 1am. Partly cloudy, with a low around 73. Chance of precipitation is 20%.
A slight chance of rain showers before 1pm. Mostly sunny, with a high near 92. Chance of precipitation is 20%.
A slight chance of showers and thunderstorms after 1am. Mostly cloudy, with a low around 69. Chance of precipitation is 20%.
A chance of showers and thunderstorms before 1pm, then a chance of showers and thunderstorms. Partly sunny, with a high near 85. Chance of precipitation is 50%.
A chance of showers and thunderstorms. Mostly cloudy, with a low around 64. Chance of precipitation is 50%.
A chance of rain showers before 1pm. Mostly sunny, with a high near 79. Chance of precipitation is 30%.
Partly cloudy, with a low around 61.
Mostly sunny, with a high near 81.
Partly cloudy, with a low around 63.
Detailed Forecast
| Period | Conditions | Temp | Wind |
|---|---|---|---|
|
Today
Sep 17
|
Sunny
|
98°F |
3 to 7 mph
SW
|
|
Tonight
Sep 17
|
Slight Chance Showers And Thunderstorms then Mostly Clear
|
75°F |
2 to 6 mph
SW
|
|
Friday
Sep 18
|
Patchy Fog then Slight Chance Showers And Thunderstorms
|
96°F |
5 mph
SE
|
|
Friday Night
Sep 18
|
Mostly Clear
|
75°F |
5 mph
S
|
|
Saturday
Sep 19
|
Mostly Sunny
|
97°F |
5 to 8 mph
SW
|
|
Saturday Night
Sep 19
|
Partly Cloudy then Slight Chance Rain Showers
|
73°F |
5 mph
SW
|
|
Sunday
Sep 20
|
Slight Chance Rain Showers
|
92°F |
6 mph
NW
|
|
Sunday Night
Sep 20
|
Mostly Cloudy then Slight Chance Showers And Thunderstorms
|
69°F |
6 mph
NE
|
|
Monday
Sep 21
|
Chance Showers And Thunderstorms
|
85°F |
6 mph
N
|
|
Monday Night
Sep 21
|
Chance Showers And Thunderstorms
|
64°F |
7 mph
N
|
|
Tuesday
Sep 22
|
Chance Rain Showers
|
79°F |
7 mph
N
|
|
Tuesday Night
Sep 22
|
Partly Cloudy
|
61°F |
6 mph
N
|
|
Wednesday
Sep 23
|
Mostly Sunny
|
81°F |
5 mph
NE
|
|
Wednesday Night
Sep 23
|
Partly Cloudy
|
63°F |
5 mph
NE
|
Nearby Forecasts
Explore weather pages for nearby cities and major places around Crystal Lake Park.