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Summit, WI Weather

It is 61°F and clear in Summit, WI, observed at 3:45 PM CDT. Today: Mostly Cloudy, high 64°F, low 48°F. Hourly and 10-day forecast from the National Weather Service. Times are local (CDT).

Summit, WI current weather

61°F

Clear

H 64° / L 48°Feels like 61°

  • No rain expected in the next 12 hours

Observed at Waukesha County Airport (13.4 mi away), 10/27/2026, 3:45 PM CDT

Hourly forecast

NWS, updated 10/27/2026, 2:33 PM PT

  1. Now62°
  2. 6 PM61°
  3. 7 PM59°
  4. 8 PM57°
  5. 9 PM57°
  6. 10 PM57°
  7. 11 PM56°
  8. Wed12 AM55°
  9. 1 AM55°
  10. 2 AM52°
  11. 3 AM52°
  12. 4 AM51°
  13. 5 AM49°
  14. 6 AM49°
  15. 7 AM48°
  16. 8 AM49°
  17. 9 AM54°
  18. 10 AM60°
  19. 11 AM64°
  20. 12 PM68°
  21. 1 PM72°
  22. 2 PM73°
  23. 3 PM73°
  24. 4 PM73°
  25. 5 PM72°
  26. 6 PM68°
  27. 7 PM66°
  28. 8 PM63°
  29. 9 PM63°
  30. 10 PM63°
  31. 11 PM63°
  32. Thu12 AM63°10%
  33. 1 AM63°18%
  34. 2 AM61°45%
  35. 3 AM60°33%
  36. 4 AM60°34%
  37. 5 AM59°26%
  38. 6 AM58°19%
  39. 7 AM59°
  40. 8 AM58°
  41. 9 AM60°
  42. 10 AM62°
  43. 11 AM64°
  44. 12 PM66°
  45. 1 PM67°
  46. 2 PM68°
  47. 3 PM68°
  48. 4 PM67°

10-day forecast

Tap a day for details

  • Today10/27Low 48°High 64°

    This Afternoon: Mostly cloudy, with a high near 64. Southeast wind around 5 mph.

    Tonight: Mostly cloudy, with a low around 48. South wind around 5 mph.

    Mostly Cloudy
  • Wed10/2845% chance of precipitationLow 58°High 73°

    Wednesday: Sunny, with a high near 73. South wind 5 to 10 mph.

    Wednesday Night: A slight chance of showers and thunderstorms between 1am and 2am, then a chance of showers and thunderstorms. Partly cloudy, with a low around 58. South wind 10 to 15 mph, with gusts as high as 25 mph. Chance of precipitation is 50%. New rainfall amounts less than a tenth of an inch possible.

    Sunny
  • Thu10/2919% chance of precipitationLow 39°High 68°

    Thursday: A slight chance of rain showers before 7am. Mostly sunny, with a high near 68. West wind 5 to 10 mph. Chance of precipitation is 20%. New rainfall amounts less than a tenth of an inch possible.

    Thursday Night: Mostly clear, with a low around 39. West wind 0 to 5 mph.

    Slight Chance Rain Showers then Mostly Sunny
  • Fri10/3021% chance of precipitationLow 45°High 61°

    Friday: A slight chance of rain showers after 1pm. Partly sunny, with a high near 61. East wind 0 to 5 mph. Chance of precipitation is 20%.

    Friday Night: A slight chance of rain showers. Mostly cloudy, with a low around 45. East wind 0 to 5 mph. Chance of precipitation is 20%.

    Partly Sunny then Slight Chance Rain Showers
  • Sat10/3139% chance of precipitationLow 48°High 61°

    Saturday: A chance of rain showers. Mostly cloudy, with a high near 61. Chance of precipitation is 40%.

    Saturday Night: A chance of rain showers. Mostly cloudy, with a low around 48. Chance of precipitation is 30%.

    Chance Rain Showers
  • Sun11/126% chance of precipitationLow 49°High 65°

    Sunday: A chance of rain showers. Mostly cloudy, with a high near 65. Chance of precipitation is 30%.

    Sunday Night: A slight chance of rain showers. Mostly cloudy, with a low around 49. Chance of precipitation is 20%.

    Chance Rain Showers
  • Mon11/246% chance of precipitationLow 47°High 65°

    Monday: A chance of rain showers. Partly sunny, with a high near 65. Chance of precipitation is 40%.

    Monday Night: A chance of rain showers. Mostly cloudy, with a low around 47. Chance of precipitation is 50%.

    Chance Rain Showers
  • Tue11/3Model blend59% chance of precipitationLow 41°High 61°

    Tuesday: Chance of rain. High near 61°. Low that night near 41°. About 0.48 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Wed11/4Model blend40% chance of precipitationLow 38°High 59°

    Wednesday: Chance of rain. High near 59°. Low that night near 38°. About 0.01 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

  • Thu11/5Model blend24% chance of precipitationLow 36°High 58°

    Thursday: Mostly cloudy, slight chance of rain. High near 58°. Low that night near 36°. About 0.01 in of precipitation.

    Computer model guidance from the NOAA National Blend of Models, not a forecast written by NWS forecasters. Expect changes this far out.

Forecast for 43.058, -88.511 from the NWS MKX office, updated 10/27/2026, 2:33 PM PT · Official forecast on weather.gov

Days 8 to 10: NOAA National Blend of Models, station KRYV (Watertown Muni, 13 mi), model run 10/27/2026, 3:00 AM CDT

From the National Weather Service; may be delayed. Not for life-safety decisions. In an emergency, call 911.

Next 6 hours

NWS hourly forecast

  1. Now62°Mostly Cloudy7%5 mph
  2. 6 PM61°Mostly Cloudy6%5 mph
  3. 7 PM59°Cloudy6%5 mph
  4. 8 PM57°Mostly Cloudy7%5 mph
  5. 9 PM57°Mostly Cloudy4%5 mph
  6. 10 PM57°Mostly Cloudy2%5 mph

Hourly details

Next 7 days: temperature chart, feels like, rain and snow amounts, sky cover, wind and gustsShow
35°55°75°0%100%TueWedThuFriSatSunMonTue62°56°73°48°68°48°61°39°61°48°65°50°65°51°

Line: temperature °F. Bars: chance of precipitation.

  1. TueNow62° 7% Sky 85%5g13
  2.  6 PM61° 6% Sky 87%5g13
  3.  7 PM59° 6% Sky 89%5g10
  4.  8 PM57° 7% Sky 85%5g10
  5.  9 PM57° 4% Sky 84%5g10
  6.  10 PM57° 2% Sky 77%5g10
  7.  11 PM56° 2% Sky 73%5g10
  8. Wed 10/2812 AM55° 2% Sky 52%5g10
  9.  1 AM55° 3% Sky 29%5g12
  10.  2 AM52° 1% Sky 7%5g12
  11.  3 AM52° 1% Sky 3%5g12
  12.  4 AM51° 0% Sky 1%5g12
  13.  5 AM49° 2% Sky 1%5g10
  14.  6 AM49° 3% Sky 1%5g10
  15.  7 AM48° 0% Sky 2%5
  16.  8 AM49° 0% Sky 2%5g10
  17.  9 AM54° 1% Sky 1%5g12
  18.  10 AM60° 0% Sky 1%5g12
  19.  11 AM64° 0% Sky 2%5g13
  20.  12 PM68° 0% Sky 1%10g15
  21.  1 PM72° 0% Sky 3%10g17
  22.  2 PM73° 0% Sky 1%10g18
  23.  3 PM73° 0% Sky 5%10g18
  24.  4 PM73° 0% Sky 6%10g18
  25.  5 PM72° 0% Sky 16%10g17
  26.  6 PM68° 0% Sky 14%10g15
  27.  7 PM66° 0% Sky 17%10g16
  28.  8 PM63° 0% Sky 14%10g18
  29.  9 PM63° 0% Sky 13%10g23
  30.  10 PM63° 2% Sky 27%15g24
  31.  11 PM63° 9% Sky 42%15g25
  32. Thu 10/2912 AM63° 10% Sky 45%10g24
  33.  1 AM63° 18% Sky 39%10g25
  34.  2 AM61° 45% Sky 30%10g25
  35.  3 AM60° 33% Sky 54%10g24
  36.  4 AM60° 34% Sky 65%10g24
  37.  5 AM59° 26% Sky 35%10g23
  38.  6 AM58° 19% Sky 46%10g21
  39.  7 AM59° 7% Sky 41%10g17
  40.  8 AM58° 7% Sky 35%10g17
  41.  9 AM60° 7% Sky 51%10g16
  42.  10 AM62° 7% Sky 66%10g15
  43.  11 AM64° 7% Sky 56%10g15
  44.  12 PM66° 7% Sky 46%10g15
  45.  1 PM67° 1% Sky 36%10g16
  46.  2 PM68° 1% Sky 25%10g17
  47.  3 PM68° 1% Sky 13%10g17
  48.  4 PM67° 1% Sky 2%10g16
  49.  5 PM64° 1% Sky 3%5g14
  50.  6 PM60° 1% Sky 4%5g12
  51.  7 PM56° 0% Sky 5%5
  52.  8 PM53° 0% Sky 4%0g8
  53.  9 PM51° 0% Sky 3%0g7
  54.  10 PM49° 0% Sky 2%0g7
  55.  11 PM48° 0% Sky 3%0g6
  56. Fri 10/3012 AM47° 0% Sky 5%0g6
  57.  1 AM46° 0% Sky 6%0g5
  58.  2 AM44° 0% Sky 8%0g5
  59.  3 AM43° 0% Sky 11%0g5
  60.  4 AM41° 0% Sky 13%0g5
  61.  5 AM40° 0% Sky 21%0g5
  62.  6 AM39° 0% Sky 30%0
  63.  7 AM41° 5% Sky 38%0
  64.  8 AM43° 5% Sky 41%0
  65.  9 AM47° 5% Sky 44%0g5
  66.  10 AM50° 5% Sky 47%0g6
  67.  11 AM54° 5% Sky 52%0g7
  68.  12 PM57° 5% Sky 56%0g7
  69.  1 PM60° 17% Sky 61%5
  70.  2 PM61° 17% Sky 63%5
  71.  3 PM61° 17% Sky 64%5
  72.  4 PM60° 17% Sky 66%5
  73.  5 PM58° 17% Sky 70%5
  74.  6 PM56° 17% Sky 75%5
  75.  7 PM58° 21% Sky 78%5
  76.  8 PM56° 21% Sky 78%0g8
  77.  9 PM54° 21% Sky 78%0g7
  78.  10 PM52° 21% Sky 78%0g7
  79.  11 PM51° 21% Sky 78%0g7
  80. Sat 10/3112 AM50° 21% Sky 78%0g7
  81.  1 AM50° 21% Sky 83%0g7
  82.  2 AM50° 21% Sky 83%0g8
  83.  3 AM49° 21% Sky 83%0g9
  84.  4 AM49° 21% Sky 83%5g10
  85.  5 AM48° 21% Sky 83%5g10
  86.  6 AM48° 21% Sky 83%5g12
  87.  7 AM48° 39% Sky 88%5g12
  88.  8 AM49° 39% Sky 88%5g13
  89.  9 AM52° 39% Sky 88%5g13
  90.  10 AM54° 39% Sky 88%5g14
  91.  11 AM56° 39% Sky 88%5g14
  92.  12 PM58° 39% Sky 88%5g14
  93.  1 PM60° 34% Sky 81%5g14
  94.  2 PM61° 34% Sky 81%5g14
  95.  3 PM61° 34% Sky 81%5g13
  96.  4 PM60° 34% Sky 81%5g13
  97.  5 PM59° 34% Sky 81%5g13
  98.  6 PM58° 34% Sky 81%5g13
  99.  7 PM56° 8% Sky 86%5g13
  100.  8 PM54° 8% Sky 86%5g13
  101.  9 PM53° 8% Sky 86%5g12
  102.  10 PM52° 8% Sky 86%5g12
  103.  11 PM52° 8% Sky 86%0g10
  104. Sun 11/112 AM52° 8% Sky 86%0g10
  105.  1 AM52° 19% Sky 85%0g9
  106.  1 AM52° 19% Sky 85%0g9
  107.  2 AM51° 19% Sky 85%0g9
  108.  3 AM51° 19% Sky 85%0g9
  109.  4 AM51° 19% Sky 85%0g9
  110.  5 AM50° 19% Sky 85%0g9
  111.  6 AM51° 26% Sky 89%0g9
  112.  7 AM53° 26% Sky 89%5g10
  113.  8 AM55° 26% Sky 89%5g12
  114.  9 AM58° 26% Sky 89%5g13
  115.  10 AM60° 26% Sky 89%5g13
  116.  11 AM62° 26% Sky 89%5g13
  117.  12 PM64° 24% Sky 68%5g13
  118.  1 PM65° 24% Sky 68%5g13
  119.  2 PM65° 24% Sky 68%5g13
  120.  3 PM65° 24% Sky 68%5g13
  121.  4 PM64° 24% Sky 68%5g13
  122.  5 PM62° 24% Sky 68%5g12
  123.  6 PM60° 15% Sky 68%5g12
  124.  7 PM58° 15% Sky 68%5g10
  125.  8 PM56° 15% Sky 68%5g10
  126.  9 PM55° 15% Sky 68%0g9
  127.  10 PM54° 15% Sky 68%0g9
  128.  11 PM54° 15% Sky 68%0g8
  129. Mon 11/212 AM54° 20% Sky 63%0g8
  130.  1 AM53° 20% Sky 63%0g8
  131.  2 AM53° 20% Sky 63%0g8
  132.  3 AM52° 20% Sky 63%0g8
  133.  4 AM51° 20% Sky 63%0g8
  134.  5 AM51° 20% Sky 63%0g8
  135.  6 AM51° 35% Sky 74%0g9
  136.  7 AM53° 35% Sky 74%5g10
  137.  8 AM55° 35% Sky 74%5g12
  138.  9 AM58° 35% Sky 74%5g13
  139.  10 AM60° 35% Sky 74%5g14
  140.  11 AM63° 35% Sky 74%5g14
  141.  12 PM64° 43%0.02"Sky 61%10g15
  142.  1 PM65° 43%0.02"Sky 61%10g16
  143.  2 PM65° 43%0.02"Sky 61%10g17
  144.  3 PM64° 43%0.02"Sky 61%10g18
  145.  4 PM63° 43%0.02"Sky 61%10g18
  146.  5 PM61° 43%0.02"Sky 61%10g17
  147.  6 PM59° 46%0.01"Sky 80%10g17
  148.  7 PM57° 46%0.01"Sky 80%10g17
  149.  8 PM55° 46%0.01"Sky 80%10g18
  150.  9 PM54° 46%0.01"Sky 80%10g18
  151.  10 PM53° 46%0.01"Sky 80%10g18
  152.  11 PM53° 46%0.01"Sky 80%10g18
  153. Tue 11/312 AM53° 45%0.03"Sky 80%10g18
  154.  1 AM52° 45%0.03"Sky 80%10g20
  155.  2 AM51° 45%0.03"Sky 80%10g21
  156.  3 AM50°Feels 46°45%0.03"Sky 80%10g22

Temperature °F · chance of precipitation · amount in inches (T = trace) · sky cover · wind and gusts (g) in mph

NWS hourly forecast updated 10/27/2026, 2:33 PM PT

Radar and satellite

National radar

NEXRAD (last 50 min) and GOES

Latest

Rain and snow totals

Next 3 days, NWS forecast grid

Rain (liquid)
0.04 in
Snow
0.00 in
Ice
0.00 in

Nearby hazards

Wisconsin hazards

Severe storm and flash flood outlooks, expected rain, river flooding and wildfires near this area

  • Severe storm outlook today:No thunderstorm risk area over this locationOutlook map
  • Excessive rainfall outlook (flash flood risk):Could not check the Weather Prediction Center outlook right now.
  • River gauges within 40 miles at or above flood stage: None reported
  • Active wildfires within 50 miles: WIBU 2 Fire (0 acres), WIBU 3 Fire (0 acres), Fisher Fire (0 acres), WIBU 1 Fire (0 acres), WIBU 4 Fire (0 acres)

UV and air quality forecast

EPA and AirNow

AQI forecast today (Kettle Moraine South)
ModeratePM2.5
AQI forecast tomorrow (Kettle Moraine South)
ModeratePM2.5

UV index guide · Air quality

Drought

By county

Waukesha County, week of 10/20/2026

No drought or abnormal dryness in this county.

Sun and moon

Local time, center of the area

Sunrise
7:22 AM
Sunset
5:52 PM
Daylight
10 hr 30 min
Moon
Waning Gibbous 96% lit
First light (civil dawn)
6:53 AM
Last light (civil dusk)
6:22 PM
Moonrise
6:22 PM
Moonset
9:18 AM

Normal October weather

Climate

Normal October high 61°, low 40°, precipitation 2.83 in for the month. 1991 to 2020 normals at Oconomowoc Wwtp, 3 mi away.

Other places nearby

Data sources

See something wrong? Request a correction

Frequently asked questions

What is the weather in Summit, WI right now?
The latest observation from Waukesha County Airport was 61°F and clear, reported at 10/27/2026, 3:45 PM CDT.
What is the high temperature today in Summit, WI?
The National Weather Service forecast for this afternoon calls for a high near 64°F. Mostly Cloudy.
Will it rain in Summit, WI in the next 24 hours?
The NWS hourly forecast does not show any hour with a 50% or higher chance of precipitation in the next 24 hours.
What is the 10-day forecast for Summit, WI?
The first 7 days come from the National Weather Service forecast. Days 8 to 10 (Nov 3 to Nov 5) come from the NOAA National Blend of Models, with highs of 58°F to 61°F and up to a 59% chance of precipitation. Model guidance this far out often changes.
What time is sunrise and sunset in Summit, WI today?
Sunrise is about 7:22 AM CDT and sunset is about 5:52 PM CDT (calculated for the center of the area, within a few minutes).
What is the normal October weather in Summit, WI?
At Oconomowoc Wwtp, the 1991 to 2020 normal high in October is 61°F and the normal low is 40°F.

About this data

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