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Johnson County (Iowa City)
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United States weather

Weather in Johnson County, Iowa for January 2026

Your guide to Johnson County weather in January - trends and predictions

    Official Weather Alert ⚠️

  • Special Weather Statement - See hour by hour.

    • Snow Forecast ❄️

  • Snowfall in Johnson County during January is quite rare, with fewer than 2 snowy days on average.
    According to Johnson County snow forecast for January 2026, 1 snowy day is expected in the next 2 weeks at Tuesday, January 27.

    • Temperatures

  • So far, January 2026 in Johnson County is slightly warmer than the historical average by 1.5 °F.

  • Expect cooler weather in the next days in Johnson County with the forecast suggesting a temperature of -2.5 °F, lower than the historical average.

  • In general, the average temperature in Johnson County at the beginning of January is -1.3 °F. As the month progressed, temperatures tended to significantly warm up, reaching an average of 2 °F by the end of January.

    • Rain 🌧️

  • With an average of 4 rainy days, Johnson County experiences minimal rainfall in January.

    • More

  • New! Chat with our AI weatherman - it’s amazing and free.

Average dry days
26
Dry days
Average rainy days
4
Rainy days
Average snowy days
1
Snow days
Average temperatures
-2°/-9°
Temperatures
Average wind speed
23 km/h
Avg max wind
Average humidity
69 %
Avg humidity

Johnson County Weather January

Move between months or click on a day
December
February
Sun.Mon.Tue.Wed.Thu.Fri.Sat.
1
Partly cloudy
-1°
2
Moderate snow
0°
3
Sunny
-2°
4
Overcast
-2°
5
Overcast
-2°
6
Overcast
-1°
7
Overcast
-1°
8
Overcast
-1°
9
Overcast
1°
10
Light freezing rain
1°
11
Cloudy
1°
12
Overcast
3°
13
Sunny
-1°
14
Weather Alert Partly cloudy
0°
15
Sunny
-2°
16
Overcast
1°
17
Blowing snow
-11°
18
Partly cloudy
-7°
19
Partly cloudy
-2°
20
Sunny
-8°
21
Partly cloudy
2°
22
Fog
4°
23
Light drizzle
2°
24
Partly cloudy
0°
25
Overcast
1°
26
Sunny
-7°
27
Heavy snow
-8°
28
Partly cloudy
7°
29
Sunny
7°
30
Overcast
7°
31
Heavy rain
7°

Temperatures trend during January in Johnson County

See the weather trend as well as the moving average line

January weather in Johnson County day by day

Click on a date for more information
December February
Date Weather Temperatures Rain Snow More
Jan. 1 Partly cloudy
Partly cloudy
 -1° /-6° 0 mm 0 cm
Jan. 2 Moderate snow
Moderate snow
 0° /-5° 2.3 mm 1.4 cm
Jan. 3 Sunny
Sunny
 -2° /-7° 0 mm 0 cm
Jan. 4 Overcast
Overcast
 -2° /-8° 0 mm 0 cm
Jan. 5 Overcast
Overcast
 -2° /-5° 0 mm 0 cm
Jan. 6 Overcast
Overcast
 -1° /-4° 0 mm 0 cm
Jan. 7 Overcast
Overcast
 -1° /-5° 0 mm 0 cm
Jan. 8 Overcast
Overcast
 -1° /-6° 31.4 mm 0 cm
Jan. 9 Overcast
Overcast
 1° /-5° 0.4 mm 0 cm
Jan. 10 Light freezing rain
Light freezing rain
 1° /-4° 0.6 mm 0 cm
Jan. 11 Cloudy
Cloudy
 1° /-5° 0 mm 0 cm
Jan. 12 Overcast
Overcast
 3° /-4° 0 mm 0 cm
Jan. 13 Sunny
Sunny
 -1° /-6° 0 mm 0 cm
Jan. 14 Partly cloudy
Partly cloudy
 0° /-6° 0 mm 0 cm
Jan. 15 Sunny
Sunny
 -2° /-10° 0 mm 0 cm
Jan. 16 Overcast
Overcast
 1° /-8° 0 mm 0 cm
Jan. 17 Blowing snow
Blowing snow
 -11° /-17° 0.7 mm 0 cm
Jan. 18 Partly cloudy
Partly cloudy
 -7° /-18° 0 mm 0 cm
Jan. 19 Partly cloudy
Partly cloudy
 -2° /-9° 0 mm 0 cm
Jan. 20 Sunny
Sunny
 -8° /-13° 0 mm 0 cm
Jan. 21 Partly cloudy
Partly cloudy
 2° /-8° 0 mm 0 cm
Jan. 22 Fog
Fog
 4° /-2° 0.1 mm 0 cm
Jan. 23 Light drizzle
Light drizzle
 2° /-3° 1.1 mm 0 cm
Jan. 24 Partly cloudy
Partly cloudy
 0° /-5° 0 mm 0 cm
Jan. 25 Overcast
Overcast
 1° /-7° 0 mm 0 cm
Jan. 26 Sunny
Sunny
 -7° /-10° 0 mm 0 cm
Jan. 27 Heavy snow
Heavy snow
 -8° /-9° 1.4 mm 1 cm
Jan. 28 Partly cloudy
Partly cloudy
 7° /-6° 0 mm 0 cm
Jan. 29 Sunny
Sunny
 7° /-1° 0 mm 0 cm
Jan. 30 Overcast
Overcast
 7° /-1° 0 mm 0 cm
Jan. 31 Heavy rain
Heavy rain
 7° /0° 33.6 mm 0 cm
Next
Important Notice
Our weather forecast for Johnson County in January is based on the analysis of historical data rather than real-time forecast models. While this provides a general overview, weather conditions can change. We recommend that you check the Johnson County forecast closer to your planned date for the most up-to-date weather information.
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Johnson County in January - FAQ

What are the expected maximum and minimum temperatures in Johnson County during January?

Brace for cold days with temperatures not exceeding -2° and nights that are likely to be freezing. Winter clothing is essential for comfort and safety.

How much rainfall should be expected in Johnson County during January?

In January, Johnson County can expect light to moderate rainfall, totaling 41.6 mm across approximately 4 days. Occasional showers are possible, and planning ahead for them could be helpful.

Will it snow in Johnson County in January 2026?

Johnson County typically sees 2.9 cm of snowfall during January.

What are the typical wind conditions in Johnson County during January?

The average wind speed in Johnson County during January is 23 km/h, suggesting breezy to windy conditions, depending on your activities.

Johnson County snow forecast January 2026

Track daily snowfall levels and discover Johnson County’s snowy potential this January ❄️
On average, Johnson County sees 1 snowy days during January, with approximately 2.9 cm of total snowfall.

January rainfall patterns in Johnson County

Explore the daily rainfall trends and prepare for Johnson Countys January weather 💧
Typically, Johnson County has 4 rainy days in January with a total of 41.6 mm of rainfall.
Top locations in Johnson County
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Iowa CityOlatheOverland Park
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Location coordinates 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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