Thunderstorms and Heavy Rains in the Appalachians

Multiple rounds of moderate to locally heavy rain will impact portions of the Appalachians and Mid-Atlantic, which may lead to flash flooding concerns. Thunderstorms with isolated severe wind gusts will be possible this afternoon from parts of the Southeast into the southern and central Appalachians. A multi-day heavy rain will pose a flash flood threat in New Mexico beginning Tuesday. Read More >

Hazardous Weather Conditions

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

63°F

17°C

Humidity 64%
Wind Speed NE 20 G 26 mph
Barometer 30.17 in
Dewpoint 50°F (10°C)
Visibility 10.00 mi
Last update 21 Sep 2:45 pm CDT
Extended Forecast for

5 Miles NNW Shirland IL

  • This Afternoon

    This Afternoon: A 40 percent chance of showers.  Cloudy, with a high near 64. Northeast wind around 10 mph.

    High: 64 °F

    Chance
    Showers

  • Tonight

    Tonight: A chance of showers before 7pm, then a slight chance of drizzle between 7pm and 10pm, then a chance of showers after 10pm.  Cloudy, with a low around 51. Northeast wind around 10 mph.  Chance of precipitation is 30%.

    Low: 51 °F

    Chance
    Showers

  • Tuesday

    Tuesday: A 40 percent chance of showers before 11am.  Cloudy, then gradually becoming mostly sunny, with a high near 61. Northeast wind 10 to 15 mph.

    High: 61 °F

    Chance
    Showers then
    Partly Sunny

  • Tuesday Night

    Tuesday Night: Mostly clear, with a low around 47. Northeast wind 5 to 10 mph.

    Low: 47 °F

    Mostly Clear

  • Wednesday

    Wednesday: Partly sunny, with a high near 64. East wind 5 to 10 mph.

    High: 64 °F

    Partly Sunny

  • Wednesday Night

    Wednesday Night: Partly cloudy, with a low around 49. Northeast wind 5 to 10 mph.

    Low: 49 °F

    Partly Cloudy

  • Thursday

    Thursday: Partly sunny, with a high near 65. East wind around 5 mph.

    High: 65 °F

    Partly Sunny

  • Thursday Night

    Thursday Night: Mostly cloudy, with a low around 48. East wind around 5 mph becoming calm  in the evening.

    Low: 48 °F

    Mostly Cloudy

  • Friday

    Friday: Partly sunny, with a high near 64.

    High: 64 °F

    Partly Sunny

Detailed Forecast

This Afternoon
A 40 percent chance of showers. Cloudy, with a high near 64. Northeast wind around 10 mph.
Tonight
A chance of showers before 7pm, then a slight chance of drizzle between 7pm and 10pm, then a chance of showers after 10pm. Cloudy, with a low around 51. Northeast wind around 10 mph. Chance of precipitation is 30%.
Tuesday
A 40 percent chance of showers before 11am. Cloudy, then gradually becoming mostly sunny, with a high near 61. Northeast wind 10 to 15 mph.
Tuesday Night
Mostly clear, with a low around 47. Northeast wind 5 to 10 mph.
Wednesday
Partly sunny, with a high near 64. East wind 5 to 10 mph.
Wednesday Night
Partly cloudy, with a low around 49. Northeast wind 5 to 10 mph.
Thursday
Partly sunny, with a high near 65. East wind around 5 mph.
Thursday Night
Mostly cloudy, with a low around 48. East wind around 5 mph becoming calm in the evening.
Friday
Partly sunny, with a high near 64.
Friday Night
Mostly cloudy, with a low around 47.
Saturday
A 20 percent chance of showers. Mostly cloudy, with a high near 63.
Saturday Night
A 30 percent chance of showers. Mostly cloudy, with a low around 50.
Sunday
A 20 percent chance of showers. Mostly cloudy, with a high near 67.
Sunday Night
Partly cloudy, with a low around 52.
Monday
Mostly sunny, with a high near 70.
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ABOUT THIS FORECAST

 
Point Forecast:
5 Miles NNW Shirland IL
 42.54°N 89.22°W (Elev. 850 ft)
3:21 pm CDT Sep 21, 2026
3pm CDT Sep 21, 2026-6pm CDT Sep 28, 2026
 
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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