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

Risks of Severe Thunderstorms and Excessive Rainfall; Fire Weather Concerns and Record Warmth

Severe thunderstorms and flash flooding risks increase across the center of the nation today. Meanwhile, ongoing thunderstorms and flash flooding will linger along the Gulf Coast states through the evening. The Great Basin and Intermountain West, warm temperatures and dry fuels with dry lightning may enhance fire weather potential. In addition, across interior Alaska, Red Flag Warning are posted. Read More >

Hazardous Weather Conditions

Current conditions at

ST FRANCIS (KSYF)

Lat: 39.76°NLon: 101.8°WElev: 3363ft.

A Few Clouds

79°F

26°C

Humidity 61%
Wind Speed S 17 G 30 mph
Barometer 29.94 in
Dewpoint 64°F (18°C)
Visibility 10.00 mi
Heat Index81°F (27°C)
Last update 20 Jun 10:15 am CDT
Extended Forecast for

11 Miles NE Bonny Reservoir CO

  • Today

    Today: Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 92. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.

    High: 92 °F

    Breezy.
    Partly Sunny
    then T-storms
    Likely

  • Tonight

    Tonight: Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 58. Breezy, with a southeast wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.

    Low: 58 °F

    T-storms
    Likely and
    Breezy

  • Sunday

    Sunday: A 30 percent chance of showers and thunderstorms after 4pm. Cloudy through mid morning, then gradual clearing, with a high near 88. Southeast wind 5 to 15 mph becoming northwest in the morning.

    High: 88 °F

    Mostly Cloudy
    then Chance
    T-storms

  • Sunday Night

    Sunday Night: A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 53. North wind 5 to 15 mph.

    Low: 53 °F

    Chance
    T-storms then
    Partly Cloudy

  • Monday

    Monday: A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 81. North wind 5 to 15 mph becoming southeast in the afternoon. Chance of precipitation is 40%.

    High: 81 °F

    Partly Sunny
    then Chance
    T-storms

  • Monday Night

    Monday Night: Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 54. Chance of precipitation is 60%.

    Low: 54 °F

    Showers
    Likely

  • Tuesday

    Tuesday: Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 70%.

    High: 77 °F

    Showers
    Likely

  • Tuesday Night

    Tuesday Night: A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 53.

    Low: 53 °F

    Chance
    T-storms

  • Wednesday

    Wednesday: A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. Chance of precipitation is 40%.

    High: 79 °F

    Chance
    Showers then
    Chance
    T-storms

Detailed Forecast

Today
Showers and thunderstorms likely, mainly after 5pm. Mostly cloudy, then gradually becoming sunny, with a high near 92. Breezy, with a south wind 15 to 25 mph, with gusts as high as 35 mph. Chance of precipitation is 60%.
Tonight
Showers and thunderstorms likely, mainly before 1am. Mostly cloudy, with a low around 58. Breezy, with a southeast wind 15 to 20 mph decreasing to 10 to 15 mph after midnight. Winds could gust as high as 30 mph. Chance of precipitation is 60%.
Sunday
A 30 percent chance of showers and thunderstorms after 4pm. Cloudy through mid morning, then gradual clearing, with a high near 88. Southeast wind 5 to 15 mph becoming northwest in the morning.
Sunday Night
A 30 percent chance of showers and thunderstorms before 7pm. Partly cloudy, with a low around 53. North wind 5 to 15 mph.
Monday
A chance of showers between 1pm and 4pm, then a chance of showers and thunderstorms after 4pm. Mostly sunny, with a high near 81. North wind 5 to 15 mph becoming southeast in the afternoon. Chance of precipitation is 40%.
Monday Night
Showers likely and possibly a thunderstorm. Partly cloudy, with a low around 54. Chance of precipitation is 60%.
Tuesday
Showers likely and possibly a thunderstorm before 1pm, then a chance of showers and thunderstorms after 1pm. Partly sunny, with a high near 77. Chance of precipitation is 70%.
Tuesday Night
A 40 percent chance of showers and thunderstorms. Partly cloudy, with a low around 53.
Wednesday
A chance of showers, with thunderstorms also possible after 1pm. Partly sunny, with a high near 79. Chance of precipitation is 40%.
Wednesday Night
A chance of showers and thunderstorms. Partly cloudy, with a low around 53. Chance of precipitation is 50%.
Thursday
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a high near 78.
Thursday Night
A 40 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55.
Friday
A 20 percent chance of showers and thunderstorms. Partly sunny, with a high near 83.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
11 Miles NE Bonny Reservoir CO
 39.72°N 102°W
Last Update:
9:37 am CDT Jun 20, 2026
Forecast Valid:
10am CDT Jun 20, 2026-6pm CDT Jun 26, 2026
 
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Additional Resources

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Hourly Weather Forecast

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High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation