To depart to a field IFR you just need some weather (area forecast, etc) that says that the weather is going to be above mins. If there are no approaches then the wx is going to have to be VFR so you can shoot a visual approach.
FAR 135. 219
Do not begin a flight under IFR or begin an
IFR or over-the-top operation unless the
latest weather reports or forecasts, or any
combination thereof, indicate weather conditions
at the estimated time of arrival at
the next airport of intended landing will be
at or above authorized IFR landing minimums.
Now once you get there, you can't actually begin a IFR approach unless there's wx on the field that tells you it's above mins. If it's VFR then you can make that determination and conduct a visual approach.
FAR 135.213(b)
Weather observations made and furnished
to pilots to conduct IFR operations at an
airport must be taken at the airport where
those IFR operations are conducted,
unless the Administrator issues operations
specifications allowing the use of weather
observations taken at a location not at the
airport where the IFR operations are conducted.
There is one exception though, if your alternate airport has wx reporting and you can get an altimeter setting you can BEGIN an approach at an airport without weather reporting (your destination). However you can not begin the FINAL approach segment. (This could help you get low enough to get a visual approach)
FAR 135.225(b): Pilots may BEGIN an instrument
approach procedure to an airport
without an approved weather reporting facility
if:
• The alternate airport has an approved
weather reporting facility and:
• The latest weather report issued by the
reporting facility includes a current local
altimeter setting for the destination airport.
• If no local altimeter setting for the destination
airport is available, the pilot
may use the current altimeter setting
provided by the facility designated on
the approach chart for the destination
airport.
FAR 135.225(c):
No pilot may begin the final approach segment
of an instrument approach procedure
to an airport unless the latest weather reported
by the facility described in paragraph
(a)(1) of this section indicates that
weather conditions are at or above the authorized IFR landing minimums for that
procedure.
How about that?
FAR 135. 219
Do not begin a flight under IFR or begin an
IFR or over-the-top operation unless the
latest weather reports or forecasts, or any
combination thereof, indicate weather conditions
at the estimated time of arrival at
the next airport of intended landing will be
at or above authorized IFR landing minimums.
Now once you get there, you can't actually begin a IFR approach unless there's wx on the field that tells you it's above mins. If it's VFR then you can make that determination and conduct a visual approach.
FAR 135.213(b)
Weather observations made and furnished
to pilots to conduct IFR operations at an
airport must be taken at the airport where
those IFR operations are conducted,
unless the Administrator issues operations
specifications allowing the use of weather
observations taken at a location not at the
airport where the IFR operations are conducted.
There is one exception though, if your alternate airport has wx reporting and you can get an altimeter setting you can BEGIN an approach at an airport without weather reporting (your destination). However you can not begin the FINAL approach segment. (This could help you get low enough to get a visual approach)
FAR 135.225(b): Pilots may BEGIN an instrument
approach procedure to an airport
without an approved weather reporting facility
if:
• The alternate airport has an approved
weather reporting facility and:
• The latest weather report issued by the
reporting facility includes a current local
altimeter setting for the destination airport.
• If no local altimeter setting for the destination
airport is available, the pilot
may use the current altimeter setting
provided by the facility designated on
the approach chart for the destination
airport.
FAR 135.225(c):
No pilot may begin the final approach segment
of an instrument approach procedure
to an airport unless the latest weather reported
by the facility described in paragraph
(a)(1) of this section indicates that
weather conditions are at or above the authorized IFR landing minimums for that
procedure.
How about that?