National Oceanic and Atmospheric Administration National Weather Service United States Department of Commerce

Dangerous Surf and Rip Currents for most of the Atlantic Shoreline; Record Heat for the West

Hurricane Erin continues to track northward. Tropical storm force winds, storm surge conditions will increase for the Outer Banks today and portions of coastal Virginia. Life-threatening surf and rip currents along much of the east coast of the U.S. this week. Major to extreme HeatRisk with new record high temperatures are expected for many areas of the western U.S. this week. Read More >

Current conditions at

ST FRANCIS (KSYF)

Lat: 39.76°NLon: 101.8°WElev: 3363ft.

Fair

90°F

32°C

Humidity 36%
Wind Speed Vrbl 3 mph
Barometer 30.21 in
Dewpoint 59°F (15°C)
Visibility 10.00 mi
Heat Index89°F (32°C)
Last update 20 Aug 1:55 pm CDT
Extended Forecast for

5 Miles NNE Bonny Reservoir CO

  • This Afternoon

    This Afternoon: Sunny, with a steady temperature around 89. Southeast wind 10 to 15 mph.

    High: 89 °F

    Sunny

  • Tonight

    Tonight: Clear, with a low around 61. Southwest wind 10 to 15 mph.

    Low: 61 °F

    Clear

  • Thursday

    Thursday: Sunny, with a high near 95. Southwest wind 10 to 15 mph becoming southeast in the afternoon.

    High: 95 °F

    Sunny

  • Thursday Night

    Thursday Night: Mostly clear, with a low around 61. Southeast wind 10 to 15 mph becoming southwest after midnight.

    Low: 61 °F

    Mostly Clear

  • Friday

    Friday: A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 91. Southwest wind 10 to 15 mph becoming east in the afternoon.

    High: 91 °F

    Sunny then
    Slight Chance
    T-storms

  • Friday Night

    Friday Night: Showers and thunderstorms likely. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.

    Low: 57 °F

    T-storms
    Likely

  • Saturday

    Saturday: A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.

    High: 80 °F

    Chance
    T-storms

  • Saturday Night

    Saturday Night: Showers and thunderstorms likely, mainly after midnight. Partly cloudy, with a low around 56. Chance of precipitation is 60%.

    Low: 56 °F

    T-storms
    Likely

  • Sunday

    Sunday: A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.

    High: 76 °F

    Chance
    T-storms

Detailed Forecast

This Afternoon
Sunny, with a steady temperature around 89. Southeast wind 10 to 15 mph.
Tonight
Clear, with a low around 61. Southwest wind 10 to 15 mph.
Thursday
Sunny, with a high near 95. Southwest wind 10 to 15 mph becoming southeast in the afternoon.
Thursday Night
Mostly clear, with a low around 61. Southeast wind 10 to 15 mph becoming southwest after midnight.
Friday
A 20 percent chance of showers and thunderstorms after noon. Sunny, with a high near 91. Southwest wind 10 to 15 mph becoming east in the afternoon.
Friday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 57. Chance of precipitation is 70%.
Saturday
A 40 percent chance of showers and thunderstorms. Mostly sunny, with a high near 80.
Saturday Night
Showers and thunderstorms likely, mainly after midnight. Partly cloudy, with a low around 56. Chance of precipitation is 60%.
Sunday
A 40 percent chance of showers and thunderstorms. Partly sunny, with a high near 76.
Sunday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 54. Chance of precipitation is 70%.
Monday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 71.
Monday Night
Showers and thunderstorms likely. Mostly cloudy, with a low around 52. Chance of precipitation is 70%.
Tuesday
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 68.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNE Bonny Reservoir CO
 39.69°N 102.14°W
Last Update:
12:43 pm MDT Aug 20, 2025
Forecast Valid:
1pm MDT Aug 20, 2025-6pm MDT Aug 26, 2025
 
Forecast Discussion
 
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Additional Resources

Radar & Satellite Image

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Hourly Weather Forecast

National Digital Forecast Database

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation