Heavy Rain and Thunderstorms in the Plains; Tropical Moisture Brings Heavy Rain to Southern California and Southwest

Heavy rain showers and thunderstorms, some severe, will persist across the Plains and Mississippi Valley through Friday. Increasing tropical moisture from the remnants of Mario will bring showers, thunderstorms, and a flash flooding threat across much of southern California into the Desert Southwest through Friday. Read More >

Hazardous Weather Conditions

Current conditions at

ST FRANCIS (KSYF)

Lat: 39.76° N Lon: 101.8° W Elev: 3363 ft.

Fair

73°F

23°C

Humidity 53%
Wind Speed NE 7 mph
Barometer 30.09 in
Dewpoint 55°F (13°C)
Visibility 10.00 mi
Last update 17 Sep 5:15 pm CDT
Detailed forecast for

Cheyenne County

Tonight
Mostly clear this evening, then mostly cloudy with slight chance of thunderstorms after midnight. Lows in the lower 50s. Northwest winds 5 to 10 mph. Chance of precipitation 20 percent.
Thursday
Decreasing clouds. Highs in the lower 70s. Northwest winds 5 to 10 mph.
Thursday Night
Clear. Lows around 50. Northeast winds 5 to 10 mph, becoming south after midnight.
Friday
Sunny. Highs in the lower 80s. South winds 5 to 10 mph.
Friday Night
Partly cloudy. Lows in the mid 50s. South winds 5 to 10 mph.
Saturday
Partly cloudy. Highs in the lower 80s.
Saturday Night
Partly cloudy. Lows in the mid 50s.
Sunday
Mostly sunny. Highs in the upper 80s.
Sunday Night
Decreasing clouds. Lows in the upper 50s.
Monday
Mostly sunny. Highs in the lower 80s.
Monday Night
Clear. Lows in the lower 50s.
Tuesday
Sunny. Highs in the lower 80s.
Tuesday Night
Clear. Lows in the lower 50s.
Wednesday
Sunny. Highs in the lower 80s.



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527 PM CDT Wed Sep 17 2025
 
 

Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database