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January 8-9, 2026: Rare January Flash Flooding and Strong Winds

Current conditions at

Janesville-Rock County (KJVL)

Lat: 42.62°NLon: 89.04°WElev: 801ft.

Overcast

25°F

-4°C

Humidity	80%
Wind Speed	NW 17 G 21 mph
Barometer	30.16 in
Dewpoint	19°F (-7°C)
Visibility	10.00 mi
Wind Chill	12°F (-11°C)
Last update	11 Jan 4:50 am CST

More Information:

Local Forecast Office More Local Wx 3 Day History Hourly Weather Forecast

Extended Forecast for

3 Miles SSE Shirland IL

Overnight
Low: 20 °F
Scattered
Flurries and
Blustery
Sunday
High: 32 °F
Scattered
Flurries and
Breezy then
Mostly Sunny
Sunday Night
Low: 26 °F
Partly Cloudy
Monday
High: 41 °F
Mostly Sunny
Monday Night
Low: 31 °F
Mostly Cloudy
Tuesday
High: 48 °F
Slight Chance
Showers then
Partly Sunny
Tuesday Night
Low: 28 °F
Mostly Cloudy
then Slight
Chance Snow
Showers
Wednesday
High: 30 °F
Blustery.
Chance Snow
Showers then
Partly Sunny
Wednesday Night
Low: 14 °F
Partly Cloudy

Detailed Forecast

Overnight

Scattered flurries. Cloudy, with a low around 20. Blustery, with a northwest wind around 20 mph, with gusts as high as 35 mph.

Sunday

Scattered flurries before 9am. Cloudy, then gradually becoming mostly sunny, with a high near 32. Breezy, with a northwest wind 15 to 20 mph decreasing to 10 to 15 mph in the afternoon. Winds could gust as high as 30 mph.

Sunday Night

Partly cloudy, with a low around 26. Southwest wind 10 to 15 mph, with gusts as high as 20 mph.

Monday

Mostly sunny, with a high near 41. West southwest wind around 10 mph, with gusts as high as 15 mph.

Monday Night

Mostly cloudy, with a low around 31. Southwest wind 5 to 10 mph, with gusts as high as 15 mph.

Tuesday

A 20 percent chance of showers before noon. Partly sunny, with a high near 48.

Tuesday Night

A 20 percent chance of snow showers after 3am. Mostly cloudy, with a low around 28.

Wednesday

A chance of snow showers before noon. Mostly cloudy, with a high near 30. Blustery.