Johnson County (Iowa City)
Today
Today weather in Johnson County
Monday, July 20th, 2026
37°
Sunny
Feels like 47° · Low 20°
Official weather alert: Heat Advisory. A scorching day is predicted for Johnson County Today with temperatures soaring to a blistering 37 °C and settling to a still-warm 19 °C at night. It'll be quite breezy in Johnson County Today with average wind speeds of 26 km/h. There's a slight chance of rain at 8%.
37° / 20°
Temp
8%
Rain
26 km/h
Wind
76%
Humidity
Johnson County Weather Pages
Johnson County hourly forecast for today
Scroll right to see more weather forecasts for Johnson County today
| 00:00 | 01:00 | 02:00 | 03:00 | 04:00 | 05:00 | 05:49 | 06:00 | 07:00 | 08:00 | 09:00 | 10:00 | 11:00 | 12:00 | 13:00 | 14:00 | 15:00 | 16:00 | 17:00 | 18:00 | 19:00 | 20:00 | 20:35 | 21:00 | 22:00 | 23:00 | ||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| weather |  | | | | | |  | | |  | | |  | | | | | | | | | |  | | | | Next |
| temperatures | 22° | 21.4° | 21.1° | 20.5° | 20.1° | 19.8° | Sunrise | 19.6° | 21° | 20.2° | 25.1° | 27.5° | 30° | 33.7° | 35.2° | 36.4° | 35° | 37.4° | 37.3° | 30.6° | 29.4° | 27.5° | Sunset | 26.7° | 27.1° | 26.1° | |
| feels like | 16° | 15.2° | 15° | 14.4° | 14.4° | 13.7° | 13.9° | 14.9° | 20.2° | 19.6° | 29.7° | 33.8° | 42° | 45.3° | 47.5° | 41.7° | 46.6° | 44.7° | 37.9° | 35.6° | 31.5° | 27.9° | 30° | 24.2° | |||
| wind speed | 10 km/h | 11 km/h | 11 km/h | 11 km/h | 9 km/h | 11 km/h | 9 km/h | 11 km/h | 12 km/h | 9 km/h | 9 km/h | 13 km/h | 9 km/h | 21 km/h | 26 km/h | 21 km/h | 17 km/h | 16 km/h | 17 km/h | 18 km/h | 16 km/h | 17 km/h | 19 km/h | 15 km/h | |||
| wind degree | 139° | 139° | 151° | 155° | 161° | 170° | 160° | 177° | 184° | 190° | 208° | 192° | 204° | 199° | 205° | 206° | 198° | 207° | 185° | 181° | 199° | 211° | 231° | 246° | |||
| wind direction | SE | SE | SSE | SSE | SSE | S | SSE | S | S | S | SSW | SSW | SSW | SSW | SSW | SSW | SSW | SSW | S | S | SSW | SSW | SW | WSW | |||
| Precipitation | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | 0 mm | |||
| chance for rain | 10% | 13% | 13% | 14% | 14% | 18% | 18% | 13% | 10% | 7% | 6% | 6% | 4% | 3% | 3% | 3% | 2% | 2% | 8% | 9% | 12% | 12% | 9% | 10% | |||
| chance for snow | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | 0% | |||
| humidity | 84% | 89% | 90% | 91% | 93% | 93% | 93% | 90% | 93% | 76% | 70% | 65% | 62% | 59% | 57% | 53% | 50% | 46% | 75% | 79% | 84% | 86% | 80% | 81% | |||
| dew point | 19.1° | 19.5° | 19.3° | 18.9° | 18.9° | 18.7° | 18.5° | 19.3° | 19.8° | 20.5° | 21.5° | 22.7° | 25.3° | 26° | 26.4° | 23.9° | 25.1° | 23.8° | 25.6° | 25.3° | 24.6° | 24.2° | 23.4° | 22.7° | |||
| visibility | 10 km | 10 km | 10 km | 10 km | 10 km | 2 km | 2 km | 10 km | 4.8 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | 9 km | 10 km | 10 km | 10 km | 10 km | 10 km | 10 km | |||
| cloud cover | 1% | 0% | 0% | 2% | 0% | 1% | 1% | 2% | 50% | 2% | 4% | 30% | 6% | 4% | 2% | 21% | 1% | 9% | 20% | 8% | 18% | 14% | 5% | 12% | |||
| UV | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0.2 | 0.6 | 1.2 | 3.3 | 5.8 | 7.5 | 7.7 | 7.9 | 7.1 | 5 | 3.2 | 1.5 | 0.4 | 0 | 0 | 0 | 0 |
Weather in Johnson County today
The weather in Johnson County today is expected to be significantly warmer than usual, with a forecast temperature of 37 °C, compared to an average of 25 °C for July 20th in recent years.
temperatures
37 °C
rain
0 mm
wind
26 km/h
UV
High
Johnson County daylight overview ☀️
Today in Johnson County, The sun rises at 05:49 and sets at 20:35, giving a total daylight duration of 14 hours and 46 minutes.
Top locations in Johnson County
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More Locations Quick links
More Johnson County weather pages
What to wear today in Johnson County? clothing recommendations
Stay comfortably stylish - your tailored guide for today's Johnson County forecast.
Short-sleeve shirt
Shorts
Lightweight trousers
Breathable footwear
Sunglasses
Wide brimmed hat
Sunscreen
Flip flop
The weather today in Johnson County - FAQ
What is the maximum temperature for today in Johnson County?
The maximum temperature for today in Johnson County is expected to be 37° degrees. Please dress accordingly to stay comfortable throughout the day.
Will it rain today in Johnson County? 🌧️
Yes, there is a 8% chance of rain in Johnson County today. We recommend carrying an umbrella or rain gear to stay dry.
What will be the wind speed today in Johnson County? 🌀
The wind in Johnson County is expected to blow at 26 km/h. This could affect outdoor activities, so plan accordingly.
How should I dress for the weather in Johnson County today?
Given the forecast of 37 °C with a 8% chance of rain, we advise checking our "What to wear today" section for recommendations. There, you will find tailored advice to help you stay comfortable and prepared for the weather conditions in Johnson County today.
What is the sunrise and sunset time for Johnson County today?
The sun is expected to rise at 05:49 and set at 20:35 in Johnson County.
How accurate is the weather forecast Johnson County today? ✅
Johnson County weather forecast for today is based on the most current and sophisticated meteorological models available. While we strive for accuracy, weather conditions can change unexpectedly, so we recommend checking for updates regularly.
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Where is Johnson County?Get accurate weather forecasts for Johnson County, located at latitude 41.661 and longitude -91.53. Stay updated with localized weather information tailored for Johnson County.
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