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

ST FRANCIS (KSYF)

Lat: 39.76°NLon: 101.8°WElev: 3363ft.

Fair

64°F

18°C

Humidity 88%
Wind Speed NW 10 mph
Barometer 30.02 in
Dewpoint 61°F (16°C)
Visibility 10.00 mi
Last update 18 Aug 6:35 am CDT
Extended Forecast for

7 Miles ENE Bonny Reservoir CO

  • Today

    Today: Sunny, with a high near 95. Light and variable wind becoming southeast 10 to 15 mph in the morning.

    High: 95 °F

    Sunny

  • Tonight

    Tonight: A 50 percent chance of showers and thunderstorms, mainly before 3am.  Cloudy during the early evening, then gradual clearing, with a low around 61. Northeast wind 10 to 15 mph becoming southwest 5 to 10 mph in the evening.

    Low: 61 °F

    Chance
    T-storms then
    Slight Chance
    T-storms

  • Tuesday

    Tuesday: Sunny, with a high near 93. West wind 5 to 10 mph becoming east in the afternoon.

    High: 93 °F

    Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 62. East wind 5 to 15 mph.

    Low: 62 °F

    Mostly Clear

  • Wednesday

    Wednesday: Sunny, with a high near 93. Southeast wind 5 to 15 mph.

    High: 93 °F

    Sunny

  • Wednesday Night

    Wednesday Night: Clear, with a low around 63.

    Low: 63 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 96.

    High: 96 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 63.

    Low: 63 °F

    Mostly Clear

  • Friday

    Friday: Sunny, with a high near 91.

    High: 91 °F

    Sunny

Detailed Forecast

Today
Sunny, with a high near 95. Light and variable wind becoming southeast 10 to 15 mph in the morning.
Tonight
A 50 percent chance of showers and thunderstorms, mainly before 3am. Cloudy during the early evening, then gradual clearing, with a low around 61. Northeast wind 10 to 15 mph becoming southwest 5 to 10 mph in the evening.
Tuesday
Sunny, with a high near 93. West wind 5 to 10 mph becoming east in the afternoon.
Tuesday Night
Mostly clear, with a low around 62. East wind 5 to 15 mph.
Wednesday
Sunny, with a high near 93. Southeast wind 5 to 15 mph.
Wednesday Night
Clear, with a low around 63.
Thursday
Sunny, with a high near 96.
Thursday Night
Mostly clear, with a low around 63.
Friday
Sunny, with a high near 91.
Friday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 60.
Saturday
A 20 percent chance of showers and thunderstorms. Mostly sunny, with a high near 86.
Saturday Night
A 40 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 84.
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ABOUT THIS FORECAST

 
Point Forecast:
7 Miles ENE Bonny Reservoir CO
 39.63°N 102.02°W
5:42 am CDT Aug 18, 2025
6am CDT Aug 18, 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