University of Washington Probability Forecast

Click a number on the table to select a new weather map; click the weather map or fill in a zip code to select a new location for the table. The yellow box shows the current map; the star shows the current location.

 Seattle, WA 98105 (47.66 N, 122.30 W)City or Zip Code:   
  Fri Apr 20 Night Sat Apr 21 Sat Apr 21 Night Sun Apr 22 Sun Apr 22 Night
 
T
E
M
P
Nighttime Low
45°

Chance freeze: 0%
10% chance greater than 48°
10% chance less than 43°
 
Daytime High
58°


10% chance greater than 61°
10% chance less than 55°
Nighttime Low
44°

Chance freeze: 0%
10% chance greater than 46°
10% chance less than 41°
 
Daytime High
60°


10% chance greater than 63°
10% chance less than 57°
Nighttime Low
39°

Chance freeze: 0%
10% chance greater than 42°
10% chance less than 37°
x
P
R
E
C
I
P
Chance of Precip
60%


10% chance .25" or more
 
Chance of Precip
20%


10% chance .04" or more
Chance of Precip
5%


10% chance .0" or more
 
Chance of Precip
10%


10% chance trace or more
Chance of Precip
5%


10% chance .0" or more
 Possible extreme low temperature for Mon Night, Nov 20 2017
47.66377, -122.301186

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This website provides uncertainty information along with a probabilistic weather forecast; move the mouse over a feature to learn more about its function.

This website was developed at the UW Applied Physics Laboratory, on the basis of research conducted at the UW departments of Atmospheric Science, Statistics and Psychology. This material is based upon work supported by the National Science Foundation under Grant No. ATM 0724721. Previous funding was provided by the Office of Naval Research.

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