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

Areas of Dangerous Heat and Heavy Rain with Possible Flooding into this Weekend

Hot temperatures and high humidity are forecast to continue across much of northeast Texas into the mid-Mississippi Valley into this weekend with heat advisories in effect. Heavy to excessive rainfall occurring at times through Saturday could bring areas of flooding across parts of the central Plains into the upper Midwest/Great Lakes, and Four Corners states. Read More >

Current conditions at

St. James Municipal Airport (KJYG)

Lat: 43.99°NLon: 94.55°WElev: 1063ft.

Overcast

70°F

21°C

Humidity 64%
Wind Speed Calm
Barometer 30.19 in
Dewpoint 57°F (14°C)
Visibility 10.00 mi
Last update 16 Sep 7:55 pm CDT
Extended Forecast for

Lewisville MN

  • Tonight

    Tonight: Showers and thunderstorms likely before 1am, then a chance of showers. Patchy fog after 1am. Otherwise, cloudy, with a low around 59. East southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.

    Low: 59 °F

    Showers
    Likely and
    Patchy Fog

  • Thursday

    Thursday: Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 75. Calm wind becoming northeast around 5 mph in the morning.

    High: 75 °F

    Patchy Fog
    then Partly
    Sunny

  • Thursday Night

    Thursday Night: A chance of showers, then showers and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall. Low around 60. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.

    Low: 60 °F

    Mostly Cloudy
    then Heavy
    Rain

  • Friday

    Friday: Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 75. Southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.

    High: 75 °F

    Heavy Rain

  • Friday Night

    Friday Night: Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 61. East southeast wind 10 to 15 mph becoming north after midnight. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.

    Low: 61 °F

    Showers

  • Saturday

    Saturday: A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 68. North wind 10 to 15 mph.

    High: 68 °F

    Chance
    Showers

  • Saturday Night

    Saturday Night: Mostly cloudy, with a low around 57. North northeast wind around 10 mph.

    Low: 57 °F

    Mostly Cloudy

  • Sunday

    Sunday: A 40 percent chance of showers. Mostly cloudy, with a high near 64. East northeast wind 10 to 15 mph.

    High: 64 °F

    Chance
    Showers

  • Sunday Night

    Sunday Night: A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55. East northeast wind 5 to 10 mph.

    Low: 55 °F

    Chance
    Showers

Detailed Forecast

Tonight
Showers and thunderstorms likely before 1am, then a chance of showers. Patchy fog after 1am. Otherwise, cloudy, with a low around 59. East southeast wind around 5 mph becoming calm in the evening. Chance of precipitation is 60%. New precipitation amounts of less than a tenth of an inch, except higher amounts possible in thunderstorms.
Thursday
Patchy fog before 10am. Otherwise, mostly cloudy, with a high near 75. Calm wind becoming northeast around 5 mph in the morning.
Thursday Night
A chance of showers, then showers and possibly a thunderstorm after 4am. Some of the storms could produce heavy rainfall. Low around 60. East wind 5 to 10 mph. Chance of precipitation is 80%. New rainfall amounts between 1 and 2 inches possible.
Friday
Showers and possibly a thunderstorm. Some of the storms could produce heavy rainfall. High near 75. Southeast wind around 15 mph, with gusts as high as 25 mph. Chance of precipitation is 100%. New rainfall amounts between 1 and 2 inches possible.
Friday Night
Showers and possibly a thunderstorm before 1am, then a chance of showers and thunderstorms between 1am and 4am, then a chance of showers after 4am. Low around 61. East southeast wind 10 to 15 mph becoming north after midnight. Chance of precipitation is 80%. New rainfall amounts between a half and three quarters of an inch possible.
Saturday
A 30 percent chance of showers, mainly before 1pm. Mostly cloudy, with a high near 68. North wind 10 to 15 mph.
Saturday Night
Mostly cloudy, with a low around 57. North northeast wind around 10 mph.
Sunday
A 40 percent chance of showers. Mostly cloudy, with a high near 64. East northeast wind 10 to 15 mph.
Sunday Night
A 50 percent chance of showers and thunderstorms. Mostly cloudy, with a low around 55. East northeast wind 5 to 10 mph.
Monday
A 50 percent chance of showers. Mostly cloudy, with a high near 63. East northeast wind around 10 mph.
Monday Night
A 20 percent chance of showers. Mostly cloudy, with a low around 54. East wind 5 to 10 mph.
Tuesday
A 20 percent chance of showers. Partly sunny, with a high near 67. Southeast wind 5 to 10 mph.
Tuesday Night
Partly cloudy, with a low around 53. South wind around 5 mph.
Wednesday
A 20 percent chance of showers. Partly sunny, with a high near 70. South southwest wind 5 to 10 mph.
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Forecast Area
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ABOUT THIS FORECAST

 
Point Forecast:
Lewisville MN
 43.93°N 94.4°W (Elev. 1070 ft)
Last Update:
5:22 pm CDT Sep 16, 2026
Forecast Valid:
8pm CDT Sep 16, 2026-6pm CDT Sep 23, 2026
 
Forecast Discussion
 
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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

National Digital Forecast Database Maximum Temperature Forecast

High Temperature

National Digital Forecast Database Weather Element Forecast

Chance of Precipitation