Watching Hurricane Erin; Heavy Rainfall Threat for Upper Midwest; Heatrisk for Mississippi Valley

Hurricane Erin continues to track westward with its outer bands bringing heavy rainfall and gusty winds for Puerto Rico and US Virgin Islands. Life-threatening surf and rip currents are occurring and will spread across the Atlantic coasts this week. Meanwhile, heavy rainfall and possible flooding are in the forecast for upper Midwest through Monday. Heatrisk continues for the Mississippi Valley. Read More >

Hazardous Weather Conditions

Current conditions at

Topeka, Philip Billard Municipal Airport (KTOP)

Lat: 39.07°NLon: 95.63°WElev: 879ft.

Fair

92°F

33°C

Humidity 51%
Wind Speed S 8 mph
Barometer 29.92 in (1012.2 mb)
Dewpoint 71°F (22°C)
Visibility 10.00 mi
Heat Index99°F (37°C)
Last update 17 Aug 6:53 pm CDT
Extended Forecast for

Saint Marys KS

  • Tonight

    Tonight: Mostly clear, with a low around 74. Southeast wind 5 to 10 mph.

    Low: 74 °F

    Mostly Clear

  • Monday

    Monday: A slight chance of showers and thunderstorms between 8am and 11am.  Sunny, with a high near 95. Southeast wind 5 to 10 mph becoming south in the morning.  Chance of precipitation is 20%.

    High: 95 °F

    Slight Chance
    T-storms then
    Sunny

  • Monday Night

    Monday Night: A 30 percent chance of showers and thunderstorms after 1am.  Mostly clear, with a low around 73. South wind around 5 mph becoming calm  after midnight.

    Low: 73 °F

    Mostly Clear
    then Chance
    T-storms

  • Tuesday

    Tuesday: A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm.  Mostly sunny, with a high near 94. Calm wind becoming north around 5 mph in the afternoon.  Chance of precipitation is 40%.

    High: 94 °F

    Chance
    Showers then
    Chance
    T-storms

  • Tuesday Night

    Tuesday Night: A 30 percent chance of showers and thunderstorms.  Partly cloudy, with a low around 68. East wind around 5 mph becoming calm  in the evening.

    Low: 68 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of thunderstorms before 7am.  Mostly sunny, with a high near 89. Northeast wind around 5 mph.  Chance of precipitation is 30%.

    High: 89 °F

    Chance
    T-storms then
    Sunny

  • Wednesday Night

    Wednesday Night: Mostly clear, with a low around 64. Northeast wind around 5 mph becoming calm  in the evening.

    Low: 64 °F

    Mostly Clear

  • Thursday

    Thursday: Sunny, with a high near 86. Calm wind becoming east around 5 mph in the afternoon.

    High: 86 °F

    Sunny

  • Thursday Night

    Thursday Night: Clear, with a low around 62. East wind around 5 mph becoming calm  in the evening.

    Low: 62 °F

    Clear

Detailed Forecast

Tonight
Mostly clear, with a low around 74. Southeast wind 5 to 10 mph.
Monday
A slight chance of showers and thunderstorms between 8am and 11am. Sunny, with a high near 95. Southeast wind 5 to 10 mph becoming south in the morning. Chance of precipitation is 20%.
Monday Night
A 30 percent chance of showers and thunderstorms after 1am. Mostly clear, with a low around 73. South wind around 5 mph becoming calm after midnight.
Tuesday
A chance of showers and thunderstorms before 10am, then a chance of showers between 10am and 1pm, then a chance of showers and thunderstorms after 1pm. Mostly sunny, with a high near 94. Calm wind becoming north around 5 mph in the afternoon. Chance of precipitation is 40%.
Tuesday Night
A 30 percent chance of showers and thunderstorms. Partly cloudy, with a low around 68. East wind around 5 mph becoming calm in the evening.
Wednesday
A chance of thunderstorms before 7am. Mostly sunny, with a high near 89. Northeast wind around 5 mph. Chance of precipitation is 30%.
Wednesday Night
Mostly clear, with a low around 64. Northeast wind around 5 mph becoming calm in the evening.
Thursday
Sunny, with a high near 86. Calm wind becoming east around 5 mph in the afternoon.
Thursday Night
Clear, with a low around 62. East wind around 5 mph becoming calm in the evening.
Friday
Sunny, with a high near 90.
Friday Night
Partly cloudy, with a low around 65.
Saturday
Partly sunny, with a high near 85.
Saturday Night
A 20 percent chance of showers and thunderstorms. Partly cloudy, with a low around 59.
Sunday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
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ABOUT THIS FORECAST

 
Point Forecast:
Saint Marys KS
 39.19°N 96.06°W
6:26 pm CDT Aug 17, 2025
7pm CDT Aug 17, 2025-6pm CDT Aug 24, 2025
 
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Additional Resources

Radar & Satellite Image

Link to Local Radar Data Link to Satellite Data

Hourly Weather Forecast

National Digital Forecast Database