Observed 2:15 AM CDT at KJVL

Janesville, WI weather

Clear and 50°10°, 16°9° warmer than a typical Oct 24.

Forecasts agree

Now 50°10°

Clear

Wind: 5 mph8 km/h; From the east. 58–10 mph16 km/h through 2 PM
Dew point: 45°7°; Comfortable
UV index: 0Low; Moderate 12–3 PM · peak 3
Air quality (notable): 136Unhealthy for sensitive groups; PM2.5 (fine particles) · tomorrow moderate
Pressure: 30.33 inHg1027 hPa; Steady over the last 3 h

No precipitation expected in the next 2 hours.

From forecast models

Next 48 hours

About the same as this time yesterday (48°9° then, 50°10° now)

Good hours for

Low 50°10° tonight at 5 AM
Above 60°16° today by 11 AM
High 70°21° today at 3 PM
Below 60°16° tonight after 9 PM

TonightNear 51°11° · Partly cloudy
This morningUp to 63°17° by 11 AM · Mostly cloudy
This afternoonNear 68°20° · Mostly cloudy
TonightDown to 51°11° by 5 AM · Mostly cloudy
Tomorrow morningUp to 64°18° by 11 AM · Mostly cloudy
Tomorrow afternoonUp to 73°23° by 3 PM · Mostly cloudy
Tomorrow nightDown to 53°12° by 1 AM · Mostly cloudy

Hourly forecast, next 48 hours, in the place's local time
Hour	Conditions	Temperature	Feels like	Precipitation	Wind	Humidity	Cloud cover	UV index
Sat 2a	Partly cloudy	52°11° (likely 51°11° to 54°12°)	52°11°	0%	5 mph8 km/h from SE, gusts 12 mph19 km/h	80%	31%	0
Sat 3a	Partly cloudy	51°11° (likely 50°10° to 53°12°)	51°11°	0%	5 mph8 km/h from SE, gusts 11 mph17 km/h	80%	31%	0
Sat 4a	Partly cloudy	51°11° (likely 49°9° to 53°12°)	51°11°	0%	5 mph8 km/h from S, gusts 10 mph15 km/h	77%	37%	0
Sat 5a	Cloudy	50°10° (likely 49°9° to 52°11°)	48°9°	0%	5 mph8 km/h from S, gusts 10 mph16 km/h	80%	75%	0
Sat 6a	Cloudy	50°10° (likely 48°9° to 52°11°)	48°9°	0%	5 mph8 km/h from S, gusts 11 mph17 km/h	80%	79%	0
Sat 7a	Cloudy	50°10° (likely 48°9° to 52°11°)	48°9°	0%	5 mph8 km/h from S, gusts 10 mph16 km/h	77%	83%	0
Sat 8a	Cloudy	51°11° (likely 49°9° to 52°11°)	51°11°	0%	5 mph8 km/h from S, gusts 10 mph16 km/h	80%	80%	0
Sat 9a	Cloudy	54°12° (likely 53°12° to 55°13°)	54°12°	0%	5 mph8 km/h from S, gusts 15 mph24 km/h	77%	87%	1
Sat 10a	Cloudy	59°15° (likely 57°14° to 59°15°)	59°15°	0%	5 mph8 km/h from S, gusts 16 mph26 km/h	67%	80%	1
Sat 11a	Cloudy	63°17° (likely 61°16° to 63°17°)	63°17°	0%	10 mph16 km/h from S, gusts 17 mph27 km/h	60%	88%	2
Sat 12p	Cloudy	67°19° (likely 63°17° to 67°19°)	67°19°	0%	10 mph16 km/h from S, gusts 17 mph27 km/h	52%	91%	3
Sat 1p	Cloudy	68°20° (likely 65°18° to 69°21°)	68°20°	0%	10 mph16 km/h from S, gusts 16 mph25 km/h	51%	80%	3
Sat 2p	Cloudy	69°21° (likely 67°19° to 70°21°)	69°21°	0%	10 mph16 km/h from S, gusts 16 mph25 km/h	47%	80%	3
Sat 3p	Cloudy	70°21° (likely 68°20° to 70°21°)	70°21°	0%	10 mph16 km/h from S, gusts 16 mph26 km/h	46%	79%	2
Sat 4p	Cloudy	69°21° (likely 67°19° to 70°21°)	69°21°	5%	10 mph16 km/h from S, gusts 16 mph26 km/h	49%	80%	1
Sat 5p	Cloudy	68°20° (likely 65°18° to 68°20°)	68°20°	5%	10 mph16 km/h from S, gusts 17 mph28 km/h	53%	84%	1
Sat 6p	Cloudy	66°19° (likely 62°17° to 66°19°)	66°19°	5%	5 mph8 km/h from S, gusts 15 mph24 km/h	56%	78%	0
Sat 7p	Cloudy	62°17° (likely 60°16° to 63°17°)	62°17°	5%	5 mph8 km/h from S, gusts 13 mph21 km/h	62%	85%	0
Sat 8p	Cloudy	60°16° (likely 59°15° to 63°17°)	60°16°	5%	5 mph8 km/h from S, gusts 12 mph20 km/h	67%	90%	0
Sat 9p	Partly cloudy	58°14° (likely 58°14° to 62°17°)	58°14°	5%	5 mph8 km/h from S, gusts 11 mph18 km/h	72%	76%	0
Sat 10p	Partly cloudy	57°14° (likely 57°14° to 61°16°)	57°14°	5%	5 mph8 km/h from S, gusts 11 mph18 km/h	72%	66%	0
Sat 11p	Partly cloudy	56°13° (likely 56°13° to 59°15°)	56°13°	5%	5 mph8 km/h from S, gusts 11 mph18 km/h	74%	51%	0
Sun 12a	Partly cloudy	55°13° (likely 54°12° to 58°14°)	55°13°	5%	5 mph8 km/h from S, gusts 11 mph18 km/h	74%	92%	0
Sun 1a	Cloudy	54°12° (likely 53°12° to 57°14°)	54°12°	5%	5 mph8 km/h from S, gusts 12 mph19 km/h	74%	88%	0
Sun 2a	Cloudy	54°12° (likely 52°11° to 56°13°)	54°12°	5%	5 mph8 km/h from S, gusts 12 mph19 km/h	74%	83%	0
Sun 3a	Cloudy	53°12° (likely 51°11° to 55°13°)	53°12°	5%	5 mph8 km/h from S, gusts 12 mph19 km/h	77%	72%	0
Sun 4a	Mostly clear	52°11° (likely 50°10° to 55°13°)	52°11°	5%	5 mph8 km/h from S, gusts 12 mph19 km/h	77%	62%	0
Sun 5a	Mostly cloudy	51°11° (likely 50°10° to 54°12°)	51°11°	5%	5 mph8 km/h from S, gusts 11 mph17 km/h	80%	77%	0
Sun 6a	Cloudy	51°11° (likely 50°10° to 54°12°)	51°11°	5%	5 mph8 km/h from S, gusts 10 mph16 km/h	80%	96%	0
Sun 7a	Cloudy	50°10° (likely 50°10° to 54°12°)	48°9°	0%	5 mph8 km/h from S, gusts 9 mph14 km/h	80%	89%	0
Sun 8a	Cloudy	52°11° (likely 50°10° to 54°12°)	52°11°	0%	5 mph8 km/h from S, gusts 8 mph13 km/h	77%	78%	0
Sun 9a	Mostly cloudy	55°13° (likely 54°12° to 57°14°)	55°13°	0%	5 mph8 km/h from S, gusts 8 mph14 km/h	77%	69%	1
Sun 10a	Mostly cloudy	60°16° (likely 58°14° to 61°16°)	60°16°	0%	5 mph8 km/h from S, gusts 12 mph20 km/h	67%	69%	1
Sun 11a	Partly sunny	64°18° (likely 61°16° to 65°18°)	64°18°	0%	5 mph8 km/h from SW, gusts 12 mph19 km/h	60%	70%	2
Sun 12p	Partly sunny	68°20° (likely 65°18° to 68°20°)	68°20°	0%	5 mph8 km/h from SW, gusts 10 mph17 km/h	53%	68%	3
Sun 1p	Partly sunny	71°22° (likely 67°19° to 71°22°)	71°22°	0%	5 mph8 km/h from SW, gusts 10 mph16 km/h	49%	72%	3
Sun 2p	Cloudy	72°22° (likely 69°21° to 72°22°)	72°22°	0%	5 mph8 km/h from SW, gusts 9 mph15 km/h	46%	73%	3
Sun 3p	Cloudy	73°23° (likely 69°21° to 73°23°)	73°23°	0%	5 mph8 km/h from SW, gusts 10 mph16 km/h	46%	79%	3
Sun 4p	Cloudy	72°22° (likely 69°21° to 73°23°)	72°22°	0%	5 mph8 km/h from SW, gusts 10 mph15 km/h	49%	80%	2
Sun 5p	Cloudy	71°22° (likely 66°19° to 72°22°)	71°22°	0%	5 mph8 km/h from S, gusts 9 mph15 km/h	53%	81%	1
Sun 6p	Cloudy	67°19° (likely 61°16° to 67°19°)	67°19°	0%	0 mph0 km/h, gusts 9 mph15 km/h	61%	79%	0
Sun 7p	Cloudy	62°17° (likely 59°15° to 63°17°)	62°17°	0%	0 mph0 km/h, gusts 8 mph14 km/h	70%	80%	0
Sun 8p	Cloudy	60°16° (likely 58°14° to 61°16°)	60°16°	0%	0 mph0 km/h, gusts 4 mph7 km/h	75%	75%	0
Sun 9p	Mostly cloudy	58°14° (likely 57°14° to 59°15°)	58°14°	0%	0 mph0 km/h, gusts 4 mph6 km/h	80%	72%	0
Sun 10p	Mostly cloudy	57°14° (likely 56°13° to 57°14°)	57°14°	0%	0 mph0 km/h, gusts 3 mph4 km/h	80%	77%	0
Sun 11p	Cloudy	56°13° (likely 55°13° to 56°13°)	56°13°	0%	0 mph0 km/h, gusts 3 mph4 km/h	80%	77%	0
Mon 12a	Partly cloudy	54°12° (likely 52°11° to 55°13°)	54°12°	0%	0 mph0 km/h, gusts 3 mph5 km/h	86%	69%	0
Mon 1a	Mostly cloudy	53°12° (likely 52°11° to 55°13°)	53°12°	0%	0 mph0 km/h, gusts 4 mph6 km/h	86%	76%	0

Days ahead

Shaded: typical range for these dates (1991–2020)

Today, Oct 24. Cloudy. High 70°21°, low 50°10°. Typical 54°12° / 36°2°. Dry. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 51°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Partly cloudy, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Official NWS forecast
Today: Partly sunny, with a high near 70. South wind 5 to 10 mph.
Tonight: Partly cloudy, with a low around 50. Southeast wind around 5 mph.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
68°20°–70°21°
Low, likely
48°9°–52°11°
Typical high / low
54°12° / 36°2°
Wind
11 mph18 km/h, gusts 21 mph34 km/h
UV peak
3
Tomorrow, Oct 25. Cloudy. High 73°23°, low 49°9°. Typical 54°12° / 36°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Mostly cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 73°23°
  Dry
3. Evening
  6 PM–midnight
  Mostly cloudy, 60°16°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 53°11°
  Dry
Official NWS forecast
Day: Mostly sunny, with a high near 73. South wind around 5 mph.
Night: Mostly cloudy, with a low around 49. Northwest wind 0 to 5 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
70°21°–73°23°
Low, likely
49°9°–53°12°
Typical high / low
54°12° / 36°2°
Wind
8 mph13 km/h, gusts 17 mph27 km/h
UV peak
3
Monday, Oct 26. Mostly cloudy. High 63°17°, low 45°7°. Typical 54°12° / 35°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 52°11°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 52°11°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 49°9°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 63. Northeast wind 5 to 10 mph.
Night: Mostly cloudy, with a low around 45. East wind 5 to 10 mph.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
62°17°–66°19°
Low, likely
45°7°–51°11°
Typical high / low
54°12° / 35°2°
Wind
12 mph20 km/h, gusts 22 mph35 km/h
UV peak
3
Tuesday, Oct 27. Cloudy. High 64°18°, low 49°9°. Typical 53°12° / 35°2°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 50°10°
  Dry
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 59°15°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 55°13°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly cloudy, with a high near 64. East wind 5 to 10 mph.
Night: Mostly cloudy, with a low around 49.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
64°18°–70°21°
Low, likely
46°8°–50°10°
Typical high / low
53°12° / 35°2°
Wind
11 mph18 km/h, gusts 26 mph41 km/h
UV peak
3
Wednesday, Oct 28. Showers. High 70°21°, low 49°9°. Typical 53°12° / 34°1°. Rain 0.02 in0.5 mm, 20% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Partly sunny, 56°13°
  Dry
2. Afternoon
  noon–6 PM
  Sunny, 70°21°
  Dry
3. Evening
  6 PM–midnight
  Clear, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Drizzle, 57°14°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: A slight chance of rain showers after 7am. Mostly sunny, with a high near 70. Chance of precipitation is 20%.
Night: A slight chance of rain showers before 7pm. Partly cloudy, with a low around 49. Chance of precipitation is 20%.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
69°21°–70°21°
Low, likely
49°9°–56°13°
Typical high / low
53°12° / 34°1°
Wind
15 mph23 km/h, gusts 28 mph45 km/h
UV peak
4
Thursday, Oct 29. Partly sunny. High 66°19°, low 44°7°. Typical 52°11° / 34°1°. Dry. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 57°14°
  Dry
2. Afternoon
  noon–6 PM
  Mostly sunny, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Mostly clear, 57°14°
  Dry
4. Overnight
  midnight–6 AM
  Cloudy, 51°11°
  Dry
Hours this far out come from computer models only.
Official NWS forecast
Day: Mostly sunny, with a high near 66.
Night: A slight chance of rain showers after 7pm. Partly cloudy, with a low around 44. Chance of precipitation is 20%.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
66°19°–72°22°
Low, likely
44°7°–57°14°
Typical high / low
52°11° / 34°1°
Wind
16 mph26 km/h, gusts 33 mph54 km/h
UV peak
3
Friday, Oct 30. Showers. High 65°18°, low 51°11°. Typical 52°11° / 34°1°. Rain 0.02 in0.5 mm, 30% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Cloudy, 53°12°
  20% chance
2. Afternoon
  noon–6 PM
  Cloudy, 68°20°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 61°16°
  Dry
4. Overnight
  midnight–6 AM
  Showers, 57°14°
  30% chance · 0.1 in2.5 mm
Hours this far out come from computer models only.
Official NWS forecast
Day: A chance of rain showers. Mostly sunny, with a high near 65. Chance of precipitation is 30%.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
63°17°–75°24°
Low, likely
40°4°–59°15°
Typical high / low
52°11° / 34°1°
Wind
12 mph19 km/h, gusts 22 mph35 km/h
UV peak
1
Saturday, Oct 31. Showers. High 68°20°, low 58°14°. Typical 51°11° / 33°1°. Rain 0.27 in6.9 mm, 40% chance. Forecasts differ.
1. Morning
  6 AM–noon
  Drizzle, 60°15°
  30% chance
2. Afternoon
  noon–6 PM
  Cloudy, 67°20°
  40% chance · 0.01 in0.4 mm
3. Evening
  6 PM–midnight
  Rain, 62°17°
  40% chance · 0.12 in3.1 mm
4. Overnight
  midnight–6 AM
  Drizzle, 60°15°
  40% chance · 0.06 in1.6 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts differIndependent forecasts disagree; expect changes and plan for the range.
High, likely
61°16°–73°23°
Low, likely
55°13°–61°16°
Typical high / low
51°11° / 33°1°
Wind
19 mph30 km/h, gusts 36 mph57 km/h
Sunday, Nov 1. Drizzle. High 65°18°, low 57°14°. Typical 50°10° / 33°1°. Rain 0.45 in11 mm, 40% chance. Mostly agree.
1. Morning
  6 AM–noon
  Cloudy, 60°16°
  40% chance · 0.05 in1.4 mm
2. Afternoon
  noon–6 PM
  Cloudy, 64°18°
  40% chance · 0.26 in6.7 mm
3. Evening
  6 PM–midnight
  Drizzle, 60°16°
  40% chance · 0.16 in4.1 mm
4. Overnight
  midnight–6 AM
  Drizzle, 51°11°
  30% chance · 0.03 in0.9 mm
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Mostly agreeIndependent forecasts are fairly close; small surprises are possible.
High, likely
63°17°–68°20°
Low, likely
53°12°–60°16°
Typical high / low
50°10° / 33°1°
Wind
19 mph31 km/h, gusts 36 mph58 km/h
UV peak
2
Monday, Nov 2. Cloudy. High 58°14°, low 46°8°. Typical 50°10° / 33°1°. Rain 0.19 in4.8 mm, 30% chance. Forecasts agree.
1. Morning
  6 AM–noon
  Cloudy, 50°10°
  20% chance · 0.04 in0.9 mm
2. Afternoon
  noon–6 PM
  Cloudy, 51°10°
  Dry
3. Evening
  6 PM–midnight
  Cloudy, 45°7°
  Dry
Hours this far out come from computer models only.
The National Weather Service writes about seven days ahead; this day is our model forecast only.
Forecasts agreeIndependent forecasts are close; the range is narrow.
High, likely
57°14°–59°15°
Low, likely
40°4°–49°9°
Typical high / low
50°10° / 33°1°
Wind
22 mph36 km/h, gusts 45 mph72 km/h
UV peak
2

10 days15 days30 days

The outlook

Today
Dry, high 70°, low 50°.
Tomorrow
Dry, high 73°, low 49°, warming up.
Monday
Dry, high 63°, low 45°, cooling off.
Rest of week
Highs 58–70°; chance of precipitation on Saturday, Sunday.

Want the meteorologists’ reasoning? Read the NWS forecast discussion (MKX) (opens in a new tab)

What changed since yesterday

No meaningful changes from yesterday’s forecast.

Radar

Radar data: NOAA MRMS, rendered by forecast.blue

Radar loads when scrolled into view

Full-screen radar

Rivers

NOAA river gauges within 25 mi

Rock River at Afton

5.7 mi

Below flood stage

Level: 5.0 ft
Flow: 2,250 cfs

Reading from Sat 1 AM · NWS gauge page

Rock River at Newville

10 mi

Below flood stage

Level: 2.7 ft

Reading from Sat 12 AM · NWS gauge page

Turtle Creek near Clinton

11 mi

Below flood stage

Level: 3.9 ft
Flow: 134 cfs

Reading from Sat 1 AM · NWS gauge page

Rock River at Lake Koshkonong

13 mi

Below flood stage

Level: 6.4 ft

Reading from Sat 12 AM · NWS gauge page

For your home

What this week’s weather means for heating, cooling, pipes and fresh air.

Heating this week

About 91% less heating than a typical week.

This week 13Typical 147

Heating degree days, base 65°F

Comfort

Dry air outside (dew point 45°F).

Open the windows?

Today, 11:00 AM–8:00 PM

Good stretch to open the windows.

Is this typical?

BELOIT · official normals 1991–2020 · records 1893–2026

Oct 24, today vs a typical year

Today’s expected high is 16°9° warmer than typical.

Last 7 days vs normal

On average 8°4° warmer than normal (daily mean temperature).

−2°−1°SunOct 18
+5°+3°MonOct 19
+8°+4°TueOct 20
+9°+5°WedOct 21
+12°+6°ThuOct 22
+15°+8°FriOct 23
—SatOct 24

Janesville weather by month: normals, records, snow and freeze dates

Sun & moon

Sun

Daylight: 10 h 39 min; Losing 2 min 44 s a day; shortest Dec 21, 1 h 37 min less
Golden hour: 5:20–6:17 PM; Morning 7:02–7:59 AM
Blue hour: 6:17–6:28 PM; Morning 6:51–7:02 AM; first light 6:51 AM

Stars tonight? Poor

Clouds most of the night (about 51% cover).

Moon

Waxing gibbous

96% lit · growing

Today: sets 5:32 AM · rises 4:58 PM
Full moon: Oct 25
New moon: Nov 9

Looking west from Janesville. The highest point on the skyline is about 2,000 ft, 23 mi away.Skyline from USGS elevation data, heights drawn up to 6× taller. Sky, sun and moon as they are now.

Janesville, WI weather

Next 2 hours

Next 48 hours

Days ahead

The outlook

Today

Tomorrow

Monday

Rest of week

What changed since yesterday

Radar

Rivers

Rock River at Afton

Rock River at Newville

Turtle Creek near Clinton

Rock River at Lake Koshkonong

For your home

Heating this week

Comfort

Open the windows?

Is this typical?

Oct 24, today vs a typical year

Last 7 days vs normal

Sun & moon

Sun

Stars tonight? Poor

Moon