JANESVILLE, IA 50647 Weather Forecast & Current Conditions

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WATERLOO, IA
Current Weather

9:54 AM CDT JUL 22, 2025
Broken Clouds
79°F
Feels Like: 82°F
Dewpoint: 73°F
Rel. Hum.: 82%
Visibility: 10 miles
Wind: SSE at 10 mph
Pressure: 29.96 inches
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JANESVILLE, IA 50647
Weather Forecast

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REST OF TODAY
Mostly cloudy late this morning, then becoming partly sunny. A slight chance of showers and thunderstorms this afternoon. Highs in the upper 80s. Southeast winds 10 to 15 mph. Chance of rain 20 percent.
TONIGHT
Mostly cloudy. A chance of showers and thunderstorms in the evening. Humid with lows in the lower 70s. Southeast winds 10 to 15 mph. Chance of rain 30 percent.
WEDNESDAY
Sunny with highs in the lower 90s. South winds 10 to 15 mph with gusts up to 25 mph. Heat index values up to 104.
WEDNESDAY NIGHT
Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Humid with lows in the lower 70s. South winds 10 to 15 mph. Chance of rain 20 percent. Heat index values up to 102 early in the evening.
THURSDAY
Partly sunny. A chance of showers with a slight chance of thunderstorms in the morning, then showers likely with a chance of thunderstorms in the afternoon. Humid with highs in the mid 80s. Southwest winds 5 to 10 mph. Chance of rain 60 percent.
THURSDAY NIGHT
Mostly cloudy with a chance of showers. A chance of thunderstorms, mainly in the evening. Lows in the upper 60s. Chance of rain 50 percent.
FRIDAY
Partly sunny with a slight chance of showers and thunderstorms. Highs in the mid 80s. Chance of rain 20 percent.
FRIDAY NIGHT
A slight chance of thunderstorms in the evening. Partly cloudy with a slight chance of showers. Lows in the upper 60s. Chance of rain 20 percent.
SATURDAY
Mostly sunny. Highs in the upper 80s.
SATURDAY NIGHT
Mostly clear. Lows in the lower 70s.
SUNDAY
Sunny. Highs in the lower 90s. Heat index values up to 100.
SUNDAY NIGHT
Mostly clear in the evening, then partly cloudy with a slight chance of showers and thunderstorms after midnight. Lows in the lower 70s. Chance of rain 20 percent. Heat index values up to 100 early in the evening.
MONDAY
Sunny with a slight chance of showers and thunderstorms. Highs in the lower 90s. Chance of rain 20 percent. Heat index values up to 105 in the afternoon.

Visible Weather Satellite
JANESVILLE, IA 50647
Infrared Weather Satellite
JANESVILLE, IA 50647
NEXRAD Weather Radar
JANESVILLE, IA 50647

WATERLOO, IA 3 hourly weather forecast

weather forecast created  7:00 PM CDT  7/21/2025
Tuesday
22 JUL 2025
JANESVILLE, IA 50647 weather forecast Day 1, 0 hours 1 AM 74° 74° Mostly Cloudy 16%
RAIN
<.01 in
0% Thunder
( 20% severe)
SE   9 93% 72°
Low 72° JANESVILLE, IA 50647 weather forecast Day 1, 3 hours 4 AM 73° 73° Mostly Cloudy SSE   9 97% 72°
High 90° JANESVILLE, IA 50647 weather forecast Day 1, 6 hours 7 AM 73° 73° Mostly Cloudy 5%

0% Thunder
( 12% severe)
SE   9 97% 72°

Mostly Cloudy



JANESVILLE, IA 50647 weather forecast Day 1, 9 hours 10 AM 79° 83° Mostly Cloudy SSE   12 85% 74°
JANESVILLE, IA 50647 weather forecast Day 1, 12 hours 1 PM 86° 95° Partly Cloudy 6%

0% Thunder
( 17% severe)
SSE   14 70% 75°
JANESVILLE, IA 50647 weather forecast Day 1, 15 hours 4 PM 88° 99° Partly Cloudy SSE   16 68% 76°
JANESVILLE, IA 50647 weather forecast Day 1, 18 hours 7 PM 86° 95° Partly Cloudy 6%

0% Thunder
( 11% severe)
SSE   14 70% 75°
JANESVILLE, IA 50647 weather forecast Day 1, 21 hours 10 PM 80° 85° Partly Cloudy SSE   13 88% 76°
Wednesday
23 JUL 2025
JANESVILLE, IA 50647 weather forecast Day 2, 0 hours 1 AM 79° 83° Partly Cloudy 6%

0% Thunder
( 11% severe)
SSE   13 88% 75°
Low 75° JANESVILLE, IA 50647 weather forecast Day 2, 3 hours 4 AM 78° 80° Partly Cloudy S   12 88% 74°
High 93° JANESVILLE, IA 50647 weather forecast Day 2, 6 hours 7 AM 77° 78° Partly Cloudy 0%

0% Thunder
( 7% severe)
S   12 90% 74°

Partly Cloudy



JANESVILLE, IA 50647 weather forecast Day 2, 9 hours 10 AM 84° 91° Partly Cloudy SSW   13 72% 74°
JANESVILLE, IA 50647 weather forecast Day 2, 12 hours 1 PM 90° 100° Partly Cloudy 3%

0% Thunder
( 7% severe)
S   14 60% 74°
JANESVILLE, IA 50647 weather forecast Day 2, 15 hours 4 PM 91° 100° Partly Cloudy SSW   15 56% 73°
JANESVILLE, IA 50647 weather forecast Day 2, 18 hours 7 PM 88° 96° Clear 4%

0% Thunder
( 11% severe)
S   12 61% 73°
JANESVILLE, IA 50647 weather forecast Day 2, 21 hours 10 PM 80° 84° Clear S   10 79% 73°

WATERLOO, IA extended weather forecast

BAD DAY
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Low 77° Low 74° Low 69° Low 72° Low 71°
High 94° High 90° High 94° High 92° High 97°
JANESVILLE, IA 50647 weather forecast Day 3 JANESVILLE, IA 50647 weather forecast Day 4 JANESVILLE, IA 50647 weather forecast Day 5 JANESVILLE, IA 50647 weather forecast Day 6 JANESVILLE, IA 50647 weather forecast Day 7
Mostly Cloudy
18% Rain
Partly Cloudy
41% Rain
Partly Cloudy
50% Rain
Partly Cloudy
52% Rain
Partly Cloudy
27% Rain
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