FORT ATKINSON, WI 53538 Weather Forecast & Current Conditions

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JANESVILLE, WI
Current Weather

8:45 AM CDT MAY 1, 2026
Scattered Clouds
45°F
Feels Like: 42°F
Dewpoint: 36°F
Rel. Hum.: 71%
Visibility: 10 miles
Wind: N at 5 mph
Pressure: 30.02 inches
Last 72 hours

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FORT ATKINSON, WI 53538
Weather Forecast

Snowfall Forecast pages
Snow Depth pages
TODAY
Partly sunny. Patchy frost in the morning. A 20 percent chance of light rain showers in the afternoon. Highs around 50. North winds 5 to 10 mph.
TONIGHT
Mostly cloudy in the evening then clearing. Widespread frost in the late evening and overnight. Lows around 30. North winds up to 5 mph through around midnight becoming calm.
SATURDAY
Sunny in the morning then becoming partly sunny. Widespread frost in the morning. Highs in the mid 50s. Northwest winds up to 10 mph.
SATURDAY NIGHT
Not as cool. Partly cloudy through around midnight, then mostly cloudy with a 20 percent chance of light rain showers after midnight. Lows in the lower 40s. Southwest winds up to 10 mph.
SUNDAY
Partly sunny. Chance of light rain showers in the morning, then chance of light rain showers and slight chance of thunderstorms in the afternoon. Highs in the mid 60s. Southwest winds 10 to 15 mph. Chance of precipitation 30 percent.
SUNDAY NIGHT
Partly cloudy. Lows in the mid 40s.
MONDAY
Partly sunny. A 40 percent chance of light rain showers and thunderstorms in the afternoon. Highs in the lower 70s.
MONDAY NIGHT
Partly cloudy with a 40 percent chance of light rain showers. Lows in the lower 40s.
TUESDAY
Partly sunny with a 30 percent chance of light rain showers. Cooler. Highs in the upper 50s.
TUESDAY NIGHT
Mostly cloudy with a 30 percent chance of light rain showers. Lows in the upper 30s.
WEDNESDAY
Partly sunny with a 30 percent chance of light rain showers. Highs in the upper 50s.
WEDNESDAY NIGHT
Mostly cloudy with a 20 percent chance of light rain showers through around midnight, then partly cloudy after midnight. Lows in the mid 30s.
THURSDAY
Partly sunny. A 20 percent chance of light rain showers in the afternoon. Highs in the upper 50s.

Visible Weather Satellite
FORT ATKINSON, WI 53538
Infrared Weather Satellite
FORT ATKINSON, WI 53538
NEXRAD Weather Radar
FORT ATKINSON, WI 53538

JANESVILLE, WI 3 hourly weather forecast

weather forecast created  7:00 PM CDT  4/30/2026
Friday
1 MAY 2026
FORT ATKINSON, WI 53538 weather forecast Day 1, 0 hours 1 AM 39° 37° Mostly Cloudy 12%
RAIN
.01–.1 in
0% Thunder
( 1% severe)
NNE   3 85% 35°
Low 35° FORT ATKINSON, WI 53538 weather forecast Day 1, 3 hours 4 AM 36° 32° Mostly Cloudy NNW   5 92% 34°
High 52° FORT ATKINSON, WI 53538 weather forecast Day 1, 6 hours 7 AM 36° 30° Partly Cloudy 0%

0% Thunder
( 2% severe)
NNW   7 92% 34°

Partly Cloudy



FORT ATKINSON, WI 53538 weather forecast Day 1, 9 hours 10 AM 44° 39° Partly Cloudy N   9 60% 31°
FORT ATKINSON, WI 53538 weather forecast Day 1, 12 hours 1 PM 48° 43° Mostly Cloudy 5%

0% Thunder
( 5% severe)
NNW   10 45% 28°
FORT ATKINSON, WI 53538 weather forecast Day 1, 15 hours 4 PM 51° 48° Partly Cloudy NNW   8 39% 27°
FORT ATKINSON, WI 53538 weather forecast Day 1, 18 hours 7 PM 51° 49° Partly Cloudy 1%

0% Thunder
( 2% severe)
N   6 42% 29°
FORT ATKINSON, WI 53538 weather forecast Day 1, 21 hours 10 PM 40° 38° Partly Cloudy N   1 70% 31°
Saturday
2 MAY 2026
FORT ATKINSON, WI 53538 weather forecast Day 2, 0 hours 1 AM 36° 34° Partly Cloudy 0%

0% Thunder
( 0% severe)
  CALM 82% 31°
Low 32° FORT ATKINSON, WI 53538 weather forecast Day 2, 3 hours 4 AM 33° 30° Partly Cloudy NW   1 88% 30°
High 56° FORT ATKINSON, WI 53538 weather forecast Day 2, 6 hours 7 AM 35° 33° Partly Cloudy 0%

0% Thunder
( 0% severe)
N   2 82% 30°

Mostly Cloudy



FORT ATKINSON, WI 53538 weather forecast Day 2, 9 hours 10 AM 46° 43° Partly Cloudy NNW   6 53% 30°
FORT ATKINSON, WI 53538 weather forecast Day 2, 12 hours 1 PM 52° 49° Mostly Cloudy 1%

0% Thunder
( 2% severe)
NNW   8 37% 27°
FORT ATKINSON, WI 53538 weather forecast Day 2, 15 hours 4 PM 55° 53° Mostly Cloudy WNW   8 34% 27°
FORT ATKINSON, WI 53538 weather forecast Day 2, 18 hours 7 PM 55° 54° Mostly Cloudy 1%

0% Thunder
( 2% severe)
WSW   5 38% 30°
FORT ATKINSON, WI 53538 weather forecast Day 2, 21 hours 10 PM 45° 43° Partly Cloudy SSW   5 58% 31°

JANESVILLE, WI extended weather forecast

Sunday
3 MAY 2026
Monday
4 MAY 2026
Tuesday
5 MAY 2026
Wednesday
6 MAY 2026
Thursday
7 MAY 2026
Low 42° Low 50° Low 41° Low 40° Low 38°
High 66° High 74° High 61° High 61° High 61°
FORT ATKINSON, WI 53538 weather forecast Day 3 FORT ATKINSON, WI 53538 weather forecast Day 4 FORT ATKINSON, WI 53538 weather forecast Day 5 FORT ATKINSON, WI 53538 weather forecast Day 6 FORT ATKINSON, WI 53538 weather forecast Day 7
Overcast
49% Rain
Partly Cloudy
59% Rain
Partly Cloudy
25% Rain
Mostly Cloudy
32% Rain
Partly Cloudy
27% Rain
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