Forecast Central

Forecast of the Day • A National Weather Forecasting Contest

Tomorrow: Friday February 21, 2020

Forecasts for Washington-Dulles, VA (KIAD)
Forecaster Tmin, deg F Tmax, deg F Precip24, in Snow, in Comment
GFS-MOS-18-DAY02 19 39 0 0
GFS-MOS-12-DAY02 19 39 0 0
NAM-MOS-12-DAY02 19 40 0 0
GFS-MOS-06-DAY02 17 40 0 0

Today: Thursday February 20, 2020

Forecasts for Washington-Dulles, VA (KIAD)
Forecaster Tmin, deg F Tmax, deg F Precip24, in Snow, in Comment
GFS-MOS-18-DAY01 26 43 0 0
GFS-MOS-12-DAY01 26 43 0 0
NAM-MOS-12-DAY01 26 38 0 0
GFS-MOS-06-DAY01 24 43 0 0
CLIMATE 26.7 47.6 0.14 0 NCDC Climate Normals, 1981-2010
GFS-MOS-00-DAY01 23 41 0 0
NAM-MOS-00-DAY01 21 36 0 0
GFS-MOS-18-DAY02 25 40 0.06 0
GFS-MOS-12-DAY02 25 41 0 0
NAM-MOS-12-DAY02 25 40 0 0
GFS-MOS-06-DAY02 24 41 0 0

Yesterday: Wednesday February 19, 2020

Forecasts for Washington-Dulles, VA (KIAD)
Forecaster Tmin, deg F Tmax, deg F Precip24, in Snow, in Comment
OBSERVED 39 53 0.02 -999 Data through 0200 UTC
PERSISTENCE 39 60 0.01 -999
GFS-MOS-00-DAY00 32 51 0 0
NAM-MOS-00-DAY00 33 50 0 0
GFS-MOS-18-DAY01 32 51 0 0
GFS-MOS-12-DAY01 32 51 0 0
NAM-MOS-12-DAY01 30 50 0 0
GFS-MOS-06-DAY01 31 51 0 0
CLIMATE 26.5 47.3 0.14 0 NCDC Climate Normals, 1981-2010
GFS-MOS-00-DAY01 32 52 0 0
NAM-MOS-00-DAY01 31 51 0 0
GFS-MOS-18-DAY02 32 52 0 0
GFS-MOS-12-DAY02 34 53 0 0
NAM-MOS-12-DAY02 32 49 0 0
GFS-MOS-06-DAY02 34 53 0.06 0