Clear Lake, IA Weather

Cerro Gordo County2:19 AM CDT43.14°N, 93.38°WElevation 1,237 ft

Current conditions

Mostly Cloudy
52°
Mostly Cloudy
Feels like 52°
High 64°·Low 49° tonight
WindNNW 8 mph
Humidity82%
Dew point46°
Pressure30.32 inHg
Visibility10 mi
Cloud cover88%
UV index0 Low
Sunrise7:40 AM
Sunset6:17 PM

Observed at Mason City Municipal Airport · 54 min ago

Forecast

10-day

  • Overnight

    Cloudy. Low around 49, with temperatures rising to around 51 overnight. North wind around 8 mph.

  • Sunday

    Mostly cloudy. High near 64, with temperatures falling to around 62 in the afternoon. North northeast wind around 7 mph.

  • Sunday Night

    Cloudy. Low around 42, with temperatures rising to around 45 overnight. Northeast wind around 8 mph.

National Weather Service forecast updated 52 min ago.

Hourly

Hourly forecast
  1. Now Cloudy 53°
  2. 3 AM Cloudy 52°
  3. 4 AM Cloudy 52°
  4. 5 AM Mostly Cloudy 51°
  5. 6 AM Mostly Cloudy 50°
  6. 7 AM Mostly Cloudy 50°
  7. 8 AM Mostly Cloudy 49°
  8. 9 AM Mostly Cloudy 51°
  9. 10 AM Partly Sunny 55°
  10. 11 AM Mostly Cloudy 58°
  11. 12 PM Mostly Cloudy 60°
  12. 1 PM Mostly Cloudy 62°
  13. 2 PM Partly Sunny 63°
  14. 3 PM Partly Sunny 63°
  15. 4 PM Mostly Cloudy 64°
  16. 5 PM Partly Sunny 62°
  17. 6 PM Mostly Cloudy 60°
  18. 7 PM Mostly Cloudy 57°
  19. 8 PM Cloudy 52°
  20. 9 PM Cloudy 50°
  21. 10 PM Cloudy 49°
  22. 11 PM Cloudy 48°
  23. Mon12 AM Cloudy 48°
  24. 1 AM Cloudy 48°

10-day forecast

Details
  1. TonightOct 24 Cloudy Cloudy49°
  2. TodayOct 25 Mostly Cloudy Mostly Cloudy42°64°
  3. MonOct 26 Slight Chance Rain Showers then Mostly Cloudy Slight Chance Rain Showers then Mostly Cloudy17%46°61°
  4. TueOct 27 Partly Sunny Partly Sunny33%51°69°
  5. WedOct 28 Chance Rain Showers Chance Rain Showers47%46°70°
  6. ThuOct 29 Chance Rain Showers then Mostly Sunny Chance Rain Showers then Mostly Sunny45%50°68°
  7. FriOct 30 Chance Rain Showers Chance Rain Showers58%52°72°
  8. SatOct 31 Rain Showers Likely Rain Showers Likely66%67°
  9. SunNov 1 Cloudy Cloudy0.04 in55°68°
  10. MonNov 2 Heavy rain Heavy rain1.15 in53°74°

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

Radar

Full map
Open the National Weather Service radar (the map here needs JavaScript).

Weather news near Clear Lake

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Air quality

41
Good
Fine particles (PM2.5)

Air quality is satisfactory, and air pollution poses little or no risk.

Forecast

  • SunModerate (68)

North-central Iowa, IA reporting area · 1 hr ago. Data from AirNow (EPA and its state, local and tribal partners); preliminary and subject to change.

Sun & moon

Sunrise 7:40 AM
Sunset 6:17 PM
Daylight 10 h 36 min (−2 min 44 s tomorrow)
Waxing Gibbous · 99% lit
Moonrise 5:35 PM Moonset 7:06 AM
Full moon Oct 26 New moon Nov 9

Almanac

Monthly
Normal high / low55° / 34°
Record high83° (1927)
Record low18° (2020)
Wettest1.00 in (2012)
Month to date1.59 in (normal 2.10 in)

Mason City, records since 1893. Normals 1991–2020. Data from NOAA's Regional Climate Centers (ACIS).

Nearby

Forecasters' discussion

From the National Weather Service office in DMX, issued 1 day ago

Key Messages

- Warm and dry conditions continue Saturday and Sunday for most of Iowa with highs in the mid to upper 70s.

- Spotty showers possible in northern Iowa on Sunday, along with cooler temperatures in the mid 50s to low 60s.

- Off and on spotty light rain chances through the upcoming week with temperatures in the 60s to low 70s.

Short Term

Issued at 214 AM CDT Sat Oct 24 2026

Scattered clouds cover the area early this morning with light wind from the south-southeast. A surface low sits across North Dakota and Manitoba with trailing trough axis across the plains and attached to the developing southern stream cutoff low. As northern and southern streams separate today the approaching cold front stalls out. This keeps Iowa dry and warm today with precipitation across South Dakota and Nebraska. Winds may occasionally gust near 20 mph, but will be lighter than what occurred on Friday. By later this evening the surface boundary begins to sag into northern Iowa with spotty light showers possible. These continue off and on Sunday as the cloud front stalls out across northern Iowa. This will result in a rather notable temperature gradient across the area with far northern Iowa in the mid 50s while most of the state reaches the 70s.

Long Term

Issued at 238 PM CDT Fri Oct 23 2026

On Monday the southern stream closed low will transition into a negatively tilted more open wave and slip north into the midwest. Some CAPE is tucked right in the triple point, but the speed of the system keeps the warm sector out of the state until the overnight hours. CAPE will build on the warm sector of the front as it stalls across the middle of the state. Much of next week will have split weather between the north and southern half. The northern half will have more seasonal temperatures in the low 60s whereas 70 degree highs will be common across the south. Rain and some thunderstorms will remain in the picture. This pattern will remain until the east CONUS ridge is broken down by a stronger system from the west.

Aviation

Issued at 1029 PM CDT Fri Oct 23 2026

VFR conditions are expected to prevail through the TAF period. Main impact through the overnight will be LLWS particularly at KFOD/KMCW. Though surface winds near 10 knots will be present, latest analysis is showing 35-40 knot winds at 2kft with ~30 degrees of veering. The LLWS is expected to mix out shortly after sunrise. There is a low (~20%) chance of showers at KFOD/KMCW between 00-06z, and will need to be monitored for PROB30/TEMPO inclusion in future issuances.

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 4Search index and reflects what the press published. Terms of use.