Appleton, WI 54914 Weather

Outagamie County5:49 AM CDT44.27°N, 88.43°W
Dense Fog Advisory until 10:00 AM Tue

Current conditions

Fog
46°
Fog
Feels like 43°
High 66°·Low 45° tonight
WindNNE 6 mph
Humidity100%
Dew point46°
Pressure30.40 inHg
Visibility0.2 mi
Cloud cover40%
UV index0 Low
Sunrise7:15 AM
Sunset6:03 PM

Observed at Appleton-Outagamie · 19 min ago

Forecast

10-day

  • Overnight

    Patchy fog. Partly cloudy, with a low around 45. Northeast wind around 1 mph.

  • Tuesday

    Widespread fog before 9am. Sunny. High near 66, with temperatures falling to around 64 in the afternoon. East southeast wind around 3 mph.

  • Tuesday Night

    Mostly clear, with a low around 44. South wind around 5 mph.

National Weather Service forecast updated 1 hr ago.

Hourly

Hourly forecast
  1. Now Patchy Fog 46°
  2. 6 AM Patchy Fog 46°
  3. 7 AM Areas Of Fog 45°
  4. 8 AM Widespread Fog 47°
  5. 9 AM Mostly Sunny 50°
  6. 10 AM Mostly Sunny 53°
  7. 11 AM Mostly Sunny 57°
  8. 12 PM Sunny 61°
  9. 1 PM Sunny 63°
  10. 2 PM Sunny 65°
  11. 3 PM Sunny 66°
  12. 4 PM Sunny 66°
  13. 5 PM Sunny 64°
  14. 6 PM Clear 61°
  15. 7 PM Mostly Clear 56°
  16. 8 PM Mostly Clear 54°
  17. 9 PM Mostly Clear 53°
  18. 10 PM Partly Cloudy 52°
  19. 11 PM Partly Cloudy 51°
  20. Wed12 AM Partly Cloudy 50°
  21. 1 AM Partly Cloudy 48°
  22. 2 AM Partly Cloudy 48°
  23. 3 AM Partly Cloudy 47°
  24. 4 AM Partly Cloudy 46°

10-day forecast

Details
  1. TonightOct 19 Patchy Fog Patchy Fog45°
  2. TodayOct 20 Widespread Fog then Sunny Widespread Fog then Sunny44°66°
  3. WedOct 21 Mostly Sunny Mostly Sunny46°68°
  4. ThuOct 22 Sunny Sunny47°67°
  5. FriOct 23 Mostly Sunny Mostly Sunny52°64°
  6. SatOct 24 Partly Sunny Partly Sunny53°65°
  7. SunOct 25 Partly Sunny Partly Sunny15%46°65°
  8. MonOct 26 Slight Chance Rain Showers Slight Chance Rain Showers15%59°
  9. TueOct 27 Cloudy Cloudy35°46°
  10. WedOct 28 Partly cloudy Partly cloudy33°50°

Days after the National Weather Service's seven are MET Norway's outlook, a computer model with no forecaster's review.

Radar

Full map
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Weather news near Appleton

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Air quality

56
Moderate
Fine particles (PM2.5)

Acceptable. Unusually sensitive people should consider limiting prolonged outdoor exertion.

Forecast

  • TueGood
  • WedGood
  • ThuGood

Green Bay and Fox Cities, WI reporting area · 49 min ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:15 AM
Sunset 6:03 PM
Daylight 10 h 47 min (−2 min 54 s tomorrow)
Waxing Gibbous · 67% lit
Moonrise 3:31 PM Moonset 1:00 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low56° / 38°
Record high81° (2024)
Record low20° (1895)
Wettest0.89 in (1965)
Month to date1.26 in (normal 1.72 in)

Green Bay Area, records since 1886. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in GRB, issued 5 hrs ago

Key Messages

- Dry this week. Next chances for rain (25% or less) this weekend.

- Late night, early morning fog expected this week, starting tonight into Tuesday morning. Patchy dense fog is possible.

- Temperatures remain above normal through the weekend. Highs may reach or exceed 70 degrees (probability of 30-50%) in portions of central and far northeast WI, Wednesday through Sunday.

Discussion

Issued at 1146 PM CDT Mon Oct 19 2026

Mostly Dry This Week...The region will be under the influence of a ridge of high pressure through at least Friday, keeping conditions dry under mostly sunny skies. Guidance indicates the next chance for rain sometime this weekend as a mid-level trough and surface low eject northeast from the Middle Rockies. Any precip will be associated with the surface low's cold front as it sweeps across the Upper Mississippi Valley, with the earliest guidance starting late Saturday night and with the latest guidance exiting on Monday. However, forcing and moisture is rather lacking due the cold front becoming too far removed from the surface low. This leaves the forecast area with low chances for measurable precip (0.01") of less than 25%.

Fog Potential...The prevailing high pressure combined with nighttime cooling and light winds will result in the potential for at least patchy ground fog each night/morning from tonight through Thursday night. Patchy dense fog may occur during these times.

Temperatures...This weather pattern will keep above normal temperatures in the forecast through the weekend with highs mainly in the 60s each day. A few spots in central and far northeast WI may reach into the low 70s a couple of the days, from Wednesday through Sunday, as NBM probs for 70 degrees or warmer sit around 30-50% each day. After tonight's low temps in the low 30s to low 40s, overnight lows will be rise above normal through the weekend, with values mainly in the 40s.

Aviation

for 06Z TAF Issuance Issued at 1217 AM CDT Tue Oct 20 2026

Primary aviation concern through the TAF period will be possible fog development early this morning. Guidance is most aggressive with fog across east-central into far north-east WI, so have included TEMPO grounds with IFR vsbys at ATW, GRB, and MTW. Not as confident in fog impacting AUW and CWA, but do have TEMPO groups with MVFR vsbys. Where fog does develop it may linger through mid-morning as the late sunrise and light surface winds will slow mixing. Otherwise VFR conditions are expected through the day Tuesday.

Winds will be light and variable overnight, turning S/SE Tuesday afternoon and remaining less than 10 kts.

Grb Watches

None.

Forecasts, observations and alerts in the United States come from the National Weather Service (NOAA); radar from NOAA's Multi-Radar Multi-Sensor system; satellite imagery from NASA's Global Imagery Browse Services (GIBS) and NOAA's GOES satellites; the map from the U.S. Geological Survey's National Map; air quality from AirNow (EPA and its partners); hurricane information from the National Hurricane Center; climate normals and records from NOAA's Regional Climate Centers (ACIS). Forecasts outside the United States and the UV index: MET Norway (CC BY 4.0); observations outside the U.S.: airport reports via NOAA's Aviation Weather Center. Place names: GeoNames (CC BY 4.0). Data are copied on a schedule and may lag the sources; for warnings that affect your safety, follow your local National Weather Service office and emergency officials. Weather news is drawn from the 4Conservative index and reflects what the press published. Terms of use.